A fermented feed stirring control method and device

Abstract

The present invention relates to the field of feed fermentation technology, and specifically proposes a fermented feed stirring control method and device, the device comprising: an outer shell, a stirring tank, a heat preservation layer, a sealing layer, an upper cover, an air supply device and a control device, wherein the stirring tank is arranged inside the outer shell for fermenting feed; a pneumatic device and an observation window are arranged on the stirring tank, and a plurality of air blowing nozzles are arranged on the pneumatic device; the heat preservation layer is arranged between the outer shell and the stirring tank, and an image sensor is arranged on the heat preservation layer at a position corresponding to the observation window; the sealing layer is arranged on the upper part of the stirring tank; the upper cover is arranged on the upper part of the sealing layer, and a mechanical motor and a stirring rod are fixedly arranged on the upper cover; the air supply device is arranged on one side of the outer shell; the control device is used to control gas stirring and mechanical stirring, and the control device comprises a collection unit, an adjustment unit and a judgment unit. The present invention combines gas stirring and mechanical stirring, realizes real-time monitoring and adjustment, and improves fermentation efficiency and quality.

Description

Technical Field

[0001] The present invention relates to the technical field of feed fermentation, and in particular to a method and device for controlling stirring of fermented feed. Background Art

[0002] Gas stirring is a process that uses gas to create a stirring or mixing effect in a liquid or semi-fluid system. This stirring method injects gas into the liquid, causing bubbles to form and rise, thereby creating a vortex and stirring effect. Gas stirring can form bubbles in the liquid, thereby achieving uniform mixing of the liquid. Compared with traditional mechanical stirring, gas stirring has a simple structure, less mechanical wear, low operating costs and high efficiency.

[0003] However, there are some problems in the current production of fermented feed using gas stirring. For example, compared with mechanical stirring and hydraulic stirring, since the gas for gas stirring comes from the gas storage tank, and the gas temperature in the gas storage tank is relatively low in winter, especially for the split gas storage tank without a heating device, stirring with low-temperature gas is obviously not conducive to the feed fermentation process; using only a single gas stirring method will also result in insufficient stirring. When the raw materials are deposited more, the single gas stirring method is prone to insufficient stirring due to pipeline blockage, which is not conducive to the rapid production of fermented feed.

[0004] Therefore, it is necessary to design a mixing and stirring control method and device to solve the problems existing in the current fermented feed production. Summary of the invention

[0005] In view of this, the present invention proposes a fermented feed stirring control method and device, aiming to solve the problem that the use of gas stirring in winter in the current fermented feed production causes the fermentation effect to deteriorate and the single gas stirring causes insufficient stirring.

[0006] In one aspect, the present invention provides a fermented feed stirring device, comprising:

[0007] outer shell;

[0008] A stirring tank is arranged inside the outer shell, and the stirring tank is used for fermenting feed; a pneumatic device is arranged on the side of the stirring tank and near the bottom, and a plurality of blowing nozzles are arranged on the pneumatic device. A first solenoid valve is arranged at the connection position between the pneumatic device and the stirring tank; an observation window is also arranged on the side of the stirring tank;

[0009] A heat-insulating layer is provided between the outer shell and the stirring tank, wherein the heat-insulating layer is provided with an image sensor at a position corresponding to the observation window, and the image sensor is used to capture image data of the observation window;

[0010] A sealing layer is arranged on the upper part of the stirring tank, and the sealing layer is used to seal the stirring tank;

[0011] An upper cover body is arranged on the upper part of the sealing layer, and a mechanical motor and a stirring rod are fixedly arranged on the upper cover body. The stirring rod passes through the sealing layer and extends into the cavity of the stirring tank, and the stirring rod is used to stir the fermented feed; the mechanical motor is used to drive the stirring rod;

[0012] An air supply device is arranged on one side of the outer shell, and a connecting pipe of the air supply device is connected to the pneumatic device; the connecting pipe is provided with a second solenoid valve and a second air blowing nozzle between the thermal insulation layer and the stirring tank, and the second air blowing nozzle is used to fill gas into the thermal insulation layer;

[0013] A control device is used to control gas stirring and mechanical stirring, and the control device includes a collection unit, an adjustment unit and a judgment unit, wherein:

[0014] The acquisition unit is configured to acquire first image data of the observation window through the image sensor, acquire the thickness of the deposition layer according to the first image data, and determine whether to perform gas stirring according to the thickness of the deposition layer;

[0015] When the collection unit determines to perform gas stirring, the collection unit is further configured to collect the ambient temperature and determine whether to heat the gas filled into the stirring tank according to the ambient temperature;

[0016] The adjustment unit is configured to collect second image data of the observation window after the gas stirring is operated for a first preset time after determining whether to heat the gas filled into the stirring tank, obtain a change rate of the deposition layer according to the second image data and the first image data, and determine whether to adjust the filling rate according to the change rate;

[0017] The judgment unit is configured to collect third image data of the observation window after a second preset time after determining whether to adjust the inflation rate, and judge whether there is a sediment layer according to the third image data;

[0018] If the determination unit determines that a sediment layer exists, the mechanical motor is turned on to perform mechanical stirring;

[0019] If the determination unit determines that there is no deposition layer, the mechanical motor is not turned on, and the gas stirring is stopped after a third preset time.

[0020] Furthermore, the collection unit determines whether to perform gas stirring according to the thickness of the deposition layer, including:

[0021] The acquisition unit compares the deposition layer thickness H with a preset deposition layer thickness threshold Hmax, and determines whether to perform the gas stirring according to the comparison result;

[0022] Under the first thickness comparison result, the acquisition unit determines to start the gas stirring;

[0023] Under the second thickness comparison result, the acquisition unit determines not to start the gas stirring;

[0024] The first thickness comparison result is H>Hmax, and the second thickness comparison result is H≤Hmax.

[0025] Furthermore, when the collection unit determines to start the gas stirring, it also includes:

[0026] The acquisition unit calculates a thickness difference △H between the deposition layer thickness H and the deposition layer thickness threshold Hmax, △H=H-Hmax;

[0027] The collecting unit controls the inflation rate of the air supply device to be positively correlated with the thickness difference ΔH.

[0028] Further, when the collection unit determines to start the gas stirring, the collection unit determines whether to heat the charged gas according to the ambient temperature, including:

[0029] The acquisition unit compares the ambient temperature W with a preset ambient temperature threshold Wmin, and determines whether to heat the gas filled into the stirring tank according to the comparison result;

[0030] Under the first temperature comparison result, the acquisition unit determines to heat the gas filled into the stirring tank;

[0031] Under the second temperature comparison result, the acquisition unit determines not to heat the gas charged into the stirring tank;

[0032] The first temperature comparison result is W<Wmin, and the second temperature comparison result is W≥Wmin.

[0033] Furthermore, when the collection unit determines to heat the gas filled into the stirring tank, it also includes:

[0034] The collecting unit collects the temperature Wb of the air in the insulation layer and the temperature Wj in the stirring tank, compares the temperature Wb of the air in the insulation layer with the temperature Wj in the stirring tank, and determines whether to heat the insulation layer according to the comparison result;

[0035] Based on the first inner layer temperature comparison result, the acquisition unit determines to heat the insulation layer;

[0036] Under the second inner layer temperature comparison result, the acquisition unit determines not to heat the thermal insulation layer;

[0037] Among them, the first inner layer temperature comparison result is Wb<Wj, and the second inner layer temperature comparison result is Wb≥Wj.

[0038] Further, when the collection unit determines to heat the gas filled into the stirring tank, it includes:

[0039] The acquisition unit obtains a temperature difference ΔW between the ambient temperature W and the ambient temperature threshold Wmin, ΔW=Wmin-W;

[0040] The heating power of the gas supply device controlled by the acquisition unit to the gas filled into the stirring tank is positively correlated with the temperature difference ΔW.

[0041] Further, when the adjustment unit determines whether to adjust the inflation rate according to the change rate, it includes:

[0042] The adjusting unit acquires the second deposition layer thickness H20 according to the second image data, and obtains the change rate S according to the second deposition layer thickness H20 and the deposition layer thickness H, where S=(H-H20) / t1, wherein t1 represents the first preset time;

[0043] The adjustment unit compares the change rate S with a preset change rate threshold Smin, and determines whether to adjust the inflation rate according to the comparison result;

[0044] Under the first rate judgment result, the adjustment unit determines to adjust the inflation rate, and controls the air supply device to operate at the adjusted inflation rate;

[0045] Under the second rate judgment result, the adjustment unit determines not to adjust the inflation rate, and controls the air supply device to maintain the original inflation rate;

[0046] The first rate determination result is S<Smin, and the second rate determination result is S≥Smin.

[0047] Further, when the adjustment unit determines to adjust the inflation rate, it includes:

[0048] The adjustment unit is further configured to compare the change rate S with a first preset change rate S1 and a second preset change rate S2, respectively, S1<S2<Smin, and determine a rate adjustment coefficient according to the comparison result to adjust the inflation rate of the air supply device;

[0049] Under the first rate comparison result, the adjustment unit determines a first rate adjustment coefficient A1 to adjust the inflation rate of the air supply device;

[0050] Under the second rate comparison result, the adjustment unit determines a second rate adjustment coefficient A2 to adjust the inflation rate of the air supply device;

[0051] Under the third rate comparison result, the adjustment unit determines a third rate adjustment coefficient A3 to adjust the inflation rate of the air supply device;

[0052] Among them, the first rate comparison result is S≤S1, the second rate comparison result is S1<S≤S2, the third rate comparison result is S2<S<Smin, A1>A2>A3.

[0053] Furthermore, when the judging unit judges whether there is a deposition layer according to the third image data, it includes:

[0054] The judging unit acquires a third deposition layer thickness H30 according to the third image data, and judges whether a deposition layer exists according to the third deposition layer thickness H30;

[0055] When H30>0, the judgment unit determines that a sediment layer exists, and turns on the mechanical motor to perform the mechanical stirring;

[0056] When H30=0, the judgment unit determines that there is no deposition layer, does not start the mechanical motor, and stops the gas stirring after a third preset time;

[0057] When the judging unit determines to turn on the mechanical motor, the method includes:

[0058] The judgment unit controls the rotation speed of the mechanical motor to be in a positive correlation with the thickness H30 of the third deposition layer, and turns off the mechanical motor when the thickness H30 of the third deposition layer is equal to 0.

[0059] Compared with the prior art, the beneficial effects of the present invention are: combining gas stirring and mechanical stirring, gas stirring can evenly mix liquids at a lower cost, and when gas stirring cannot meet the stirring requirements, mechanical stirring is used to solve the material deposition problem, making the production of fermented feed more efficient. Equipped with a control device, by collecting data from an image sensor, it can intelligently determine whether there is a sediment layer during the fermentation process and whether gas stirring or mechanical stirring is required. The automation and controllability of the fermentation process are improved. Whether to heat the gas filled into the stirring tank is determined according to the ambient temperature, thereby solving the adverse effect of the low gas temperature in winter on the gas stirring effect. By detecting the rate of change of the sediment layer and adjusting the gas filling rate, the effect of gas stirring can be more accurately controlled to avoid the problem of insufficient or excessive stirring. An observation window and an image sensor are provided, so that the situation during the fermentation process can be observed in real time, and image data can be used for judgment and adjustment, thereby improving the degree of automation of the production process.

[0060] On the other hand, the present application also proposes a fermented feed stirring control method, which is applied to the above-mentioned fermented feed stirring device, comprising:

[0061] acquiring first image data of the observation window through an image sensor, acquiring the thickness of the deposition layer according to the first image data, and determining whether to perform gas stirring according to the thickness of the deposition layer;

[0062] When it is determined that gas stirring is to be performed, the ambient temperature is collected and it is determined whether to heat the gas filled into the stirring tank according to the ambient temperature;

[0063] After determining whether to heat the gas filled into the stirring tank, collecting second image data of the observation window after the gas stirring is run for a first preset time, obtaining a change rate of the deposition layer according to the second image data and the first image data, and determining whether to adjust the filling rate according to the change rate;

[0064] After determining whether to adjust the inflation rate, collecting third image data of the observation window after a second preset time, and judging whether there is a sediment layer according to the third image data;

[0065] If it is determined that a sediment layer exists, the mechanical motor is turned on for mechanical stirring;

[0066] If it is determined that no deposition layer exists, the mechanical motor is not turned on, and the gas stirring is stopped after a third preset time.

[0067] It is understandable that the above-mentioned fermented feed stirring control method and device have the same beneficial effects, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0068] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0069] Figure 1 A three-dimensional view of a fermented feed stirring device provided in an embodiment of the present invention;

[0070] Figure 2 A front view of a fermented feed stirring device provided in an embodiment of the present invention;

[0071] Figure 3 for Figure 2 Cross-sectional view in the A direction;

[0072] Figure 4 A functional block diagram of a control device in a fermented feed stirring device provided in an embodiment of the present invention;

[0073] Figure 5 This is a flowchart of a fermented feed stirring control method provided in an embodiment of the present invention.

[0074] Among them, 110, outer shell; 120, stirring tank; 121, pneumatic device; 122, air blowing nozzle; 123, first solenoid valve; 124, observation window; 130, insulation layer; 140, sealing layer; 150, upper cover; 151, mechanical motor; 152, stirring rod; 160, air supply device; 161, connecting pipe; 162, second solenoid valve; 163, second air blowing nozzle; 170, control device; 171, collection unit; 172, adjustment unit; 173, judgment unit. DETAILED DESCRIPTION

[0075] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features described in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0076] Okara liquid feed is a liquid feed made from bean byproducts (such as soybean dregs or tofu dregs). This liquid feed has a certain fluidity and can be mixed and fed to animals more conveniently. Okara itself is rich in protein. Through the production process of liquid fermented feed, the protein content in the dregs can be better released and increased, thereby increasing the nutritional value of the feed. During the production, the dregs produced during the processing of beans, such as soybean dregs or tofu dregs, are collected. An appropriate amount of fermentation agent, such as yeast, lactic acid bacteria, etc., is added to the dregs to start the fermentation process. The dregs and the fermentation agent are fully mixed to ensure that the fermentation agent is evenly distributed in the dregs. The mixture is placed in a fermentation tank for fermentation, and stirring is required to promote its full fermentation. After the fermentation is completed, the dregs liquid feed can be obtained. During the fermentation process of the dregs liquid feed, the sediment in the dregs will settle at the bottom after being stationary for a period of time. In order to fully ferment, it needs to be stirred. In the current gas stirring technology, there are problems such as poor fermentation effect caused by gas stirring in winter and insufficient stirring caused by single gas stirring. To solve this problem, a fermented feed stirring control method and device are designed.

[0077] See also Figure 1-4As shown, this embodiment provides a fermented feed stirring device, including: an outer shell 110, a stirring tank 120, an insulation layer 130, a sealing layer 140, an upper cover 150, an air supply device 160 and a control device 170. Among them, the stirring tank 120 is arranged inside the outer shell 110, and the stirring tank 120 is used to ferment feed. A pneumatic device 121 is arranged on the side of the stirring tank 120 and near the bottom. A plurality of blowing nozzles 122 are arranged on the pneumatic device 121, and a first solenoid valve 123 is arranged at the connection position between the pneumatic device 121 and the stirring tank 120. An observation window 124 is also arranged on the side of the stirring tank 120. The insulation layer 130 is arranged between the outer shell 110 and the stirring tank 120, and the insulation layer 130 is provided with an image sensor at a position corresponding to the observation window 124, and the image sensor is used to capture image data of the observation window 124. The sealing layer 140 is arranged on the upper part of the stirring tank 120, and the sealing layer 140 is used to seal the stirring tank 120. The upper cover 150 is arranged on the upper part of the sealing layer 140. A mechanical motor 151 and a stirring rod 152 are fixedly arranged on the upper cover 150. The stirring rod 152 passes through the sealing layer 140 and extends into the cavity of the stirring tank 120. The stirring rod 152 is used to stir the fermented feed. The mechanical motor 151 is used to drive the stirring rod 152. The air supply device 160 is arranged on one side of the outer shell 110. The connecting pipe 161 of the air supply device 160 is connected to the pneumatic device 121. The connecting pipe 161 is provided with a second solenoid valve 162 and a second blowing nozzle 163 between the insulation layer 130 and the stirring tank 120. The second blowing nozzle 163 is used to fill the insulation layer 130 with gas. The control device 170 is used to control gas stirring and mechanical stirring. The control device 170 includes a collection unit 171, an adjustment unit 172 and a judgment unit 173.

[0078] Specifically, the acquisition unit 171 is configured to acquire the first image data of the observation window 124 through the image sensor, acquire the thickness of the sediment layer according to the first image data, and determine whether to perform gas stirring according to the thickness of the sediment layer. After the acquisition unit 171 determines that gas stirring is performed, the acquisition unit 171 is also configured to acquire the ambient temperature and determine whether to heat the gas filled into the stirring tank 120 according to the ambient temperature. The adjustment unit 172 is configured to acquire the second image data of the observation window 124 after the gas stirring runs for a first preset time after determining whether to heat the gas filled into the stirring tank 120, acquire the change rate of the sediment layer according to the second image data and the first image data, and determine whether to adjust the inflation rate according to the change rate. The judgment unit 173 is configured to acquire the third image data of the observation window 124 after the second preset time after determining whether to adjust the inflation rate, and determine whether there is a sediment layer according to the third image data. If the judgment unit 173 determines that there is a sediment layer, the mechanical motor 151 is turned on for mechanical stirring. If the determination unit 173 determines that there is no deposition layer, the mechanical motor 151 is not turned on, and the gas stirring is stopped after a third preset time.

[0079] Specifically, the insulation layer 130 covers the top of the mixing tank 120 and is used to seal the mixing tank 120. When in use, the upper cover 150 is pressed downward by bolts to press the insulation layer 130 toward the mixing tank 120 to complete the sealing. The mechanical motor 151 of the upper cover 150 is connected to the stirring rod 152 through a belt. The rotation of the mechanical motor 151 drives the belt to rotate, thereby driving the stirring rod 152 to rotate. The tail of the stirring rod 152 passes through the sealing layer 140 and rotates in the cavity of the mixing tank 120 to achieve mechanical stirring of the fermented feed. The gas supply device 160 is connected to the internal mixing tank 120 through the connecting pipe 161. When the mixing tank 120 performs gas stirring, the first solenoid valve 123 and the second solenoid valve 162 are in an open state, and the gas flows from the gas supply device 160 to the mixing tank 120. The control device 170 is fixed on the outer shell 110 or placed near the outer shell 110. The control device 170 is electrically connected to the mechanical motor 151 and the gas supply device 160. At the same time, the control device 170 is also connected to a variety of sensors, such as image sensors and temperature sensors. The acquisition unit 171 in the control device 170 acquires the first image data of the observation window 124, obtains the thickness of the deposition layer according to the first image data, and determines whether to turn on the gas supply device 160 for gas stirring according to the thickness of the deposition layer. When it is determined that gas stirring is to be performed, a temperature judgment is performed. The temperature sensor can be fixedly set on the outer shell 110 to obtain the ambient temperature, set in the stirring tank 120 to obtain the temperature in the cavity, and set in the insulation layer 130 to obtain the air temperature in the insulation layer 130. It is determined whether to heat the gas filled in the stirring tank 120 according to the ambient temperature. The adjustment unit 172 is used to collect the second image data of the observation window 124 again after a period of time has passed after it is determined that the gas stirring is turned on, compare the second image data with the first image data, and determine whether the current inflation rate meets the requirements. If it does not meet the requirements, the inflation rate is adjusted. After determining whether to adjust the inflation rate, the gas supply device 160 continues to operate for a second preset time, and the judgment unit 173 collects the third image data of the observation window 124, and determines whether there is still a sediment layer according to the third image data. If there is still a sediment layer, mechanical stirring is turned on. If there is no sediment layer, mechanical stirring is not turned on, and gas stirring is turned off after a third preset time has passed after the third image data is collected.

[0080] It is understandable that the sedimentation layer in the stirring tank 120 is detected in real time by an image sensor, thereby realizing intelligent judgment on whether gas stirring is needed. By monitoring the ambient temperature, the temperature of the gas can be dynamically adjusted, the effect of gas stirring can be improved, and the adverse effect of gas stirring on feed fermentation can be reduced. In addition, by adjusting the gas inflation rate, the production needs of the fermented feed can be more accurately met, and the process of feed fermentation can be optimized. Through the combined use of the mechanical motor 151 and the stirring rod 152, the fermented feed can be fully stirred and the stirring effect can be improved. It also has a real-time monitoring and processing mechanism for the sedimentation layer during the fermentation process to ensure the quality and production efficiency of the fermented feed.

[0081] In some embodiments of the present application, the acquisition unit 171 determines whether to perform gas stirring according to the thickness of the deposited layer, including: the acquisition unit 171 compares the thickness H of the deposited layer with a preset threshold value Hmax of the thickness of the deposited layer, and determines whether to perform gas stirring according to the comparison result. Under the first thickness comparison result, the acquisition unit 171 determines to turn on the gas stirring. Under the second thickness comparison result, the acquisition unit 171 determines not to turn on the gas stirring. Among them, the first thickness comparison result is H>Hmax, and the second thickness comparison result is H≤Hmax.

[0082] Specifically, the thickness of the sediment layer refers to the thickness of a layer of sediment produced in the feed or other fermentation substances during the fermentation process. This layer of sediment is formed due to the precipitation of waste produced by fermentation, metabolites of microorganisms or other substances in the fermentation liquid. The formation of the sediment layer will affect the uniformity and efficiency of the fermentation process. The sediment layer thickness threshold Hmax is a set value used as a reference standard to determine whether gas stirring is required. Specifically, during operation, the thickness of the sediment layer is detected and compared with the pre-set sediment layer thickness threshold. If the thickness of the sediment layer exceeds the set threshold, it is determined that the sediment in the fermentation liquid is thicker and gas stirring is required to ensure that the components in the fermentation liquid are more evenly distributed. Conversely, if the thickness of the sediment layer does not exceed the set threshold, it is determined that the current sedimentation situation is within an acceptable range and gas stirring is not required, thereby saving resources and energy.

[0083] It can be understood that by setting the threshold comparison to determine when to turn on or off the gas stirring, flexible control is achieved according to the actual thickness of the deposition layer. This makes the device more adaptable to different production scenarios, provides a more accurate and adaptive stirring control method, and helps to better meet the actual needs of the fermentation process.

[0084] In some embodiments of the present application, when the acquisition unit 171 determines to start gas stirring, it also includes: the acquisition unit 171 calculates the thickness difference △H between the deposition layer thickness H and the deposition layer thickness threshold Hmax, △H=H-Hmax. The acquisition unit 171 controls the inflation rate of the gas supply device 160 to be positively correlated with the thickness difference △H.

[0085] Specifically, the acquisition unit 171 compares the thickness difference △H with the first preset thickness difference △H1 and the second preset thickness difference △H2, and determines the inflation rate of the air supply device 160 according to the comparison results. Under the first thickness difference comparison result, the acquisition unit 171 determines that the inflation rate of the air supply device 160 is the first inflation rate V1. Under the second thickness difference comparison result, the acquisition unit 171 determines that the inflation rate of the air supply device 160 is the second inflation rate V2. Under the third thickness difference comparison result, the acquisition unit 171 determines that the inflation rate of the air supply device 160 is the third inflation rate V3. Among them, the first thickness difference comparison result is △H≤△H1, the second thickness difference comparison result is △H1<△H≤△H2, the third thickness difference comparison result is △H2<△H, V1<V2<V3.

[0086] It can be understood that by adjusting the inflation rate of the gas supply device 160 according to the difference between the actual thickness of the deposited layer and the set threshold, dynamic control of the gas stirring process is achieved. It can respond to changes in the deposited layer more accurately, and realize the adaptive control of the fermentation process by the device. By setting different preset thickness difference thresholds, multiple inflation rate levels are determined, which helps to adapt to the different thicknesses of the deposited layer more finely, making the gas stirring effect more flexible and accurate. By adjusting the inflation rate according to different thickness difference conditions, the energy required for gas stirring can be more effectively utilized while ensuring the fermentation effect.

[0087] In some embodiments of the present application, when the acquisition unit 171 determines to turn on gas stirring, the acquisition unit 171 determines whether to heat the gas charged according to the ambient temperature, including: the acquisition unit 171 compares the ambient temperature W with the preset ambient temperature threshold Wmin, and determines whether to heat the gas charged into the stirring tank 120 according to the comparison result. Under the first temperature comparison result, the acquisition unit 171 determines to heat the gas charged into the stirring tank 120. Under the second temperature comparison result, the acquisition unit 171 determines not to heat the gas charged into the stirring tank 120. Among them, the first temperature comparison result is W<Wmin, and the second temperature comparison result is W≥Wmin.

[0088] Specifically, by comparing the collected ambient temperature W with the preset ambient temperature threshold Wmin, the collection unit 171 can automatically determine whether the current ambient temperature is lower than the set threshold. When the first temperature comparison result W<Wmin, the collection unit 171 determines to heat the gas filled into the stirring tank 120. It ensures that suitable fermentation conditions are maintained by heating the gas when the ambient temperature is low, thereby improving the stability and efficiency of the fermentation process. Taking into account the temperature changes in different regions and seasons, intelligent heating control helps to better adapt to different environmental conditions.

[0089] It can be understood that through intelligent heating control, gas stirring is made more intelligent and efficient, and can be adjusted accordingly according to the actual ambient temperature, thereby improving the performance of the device in different working environments.

[0090] In some embodiments of the present application, when the collection unit 171 determines to heat the gas filled into the stirring tank 120, it also includes: the collection unit 171 collects the temperature Wb of the air in the insulation layer 130 and the temperature Wj in the stirring tank 120, compares the temperature Wb of the air in the insulation layer 130 with the temperature Wj in the stirring tank 120, and determines whether to heat the insulation layer 130 according to the comparison result. Under the first inner layer temperature comparison result, the collection unit 171 determines to heat the insulation layer 130. Under the second inner layer temperature comparison result, the collection unit 171 determines not to heat the insulation layer 130. The insulation layer 130 is preferably made of glass wool, which is an insulating material made of glass fiber and has good thermal insulation performance. Among them, the first inner layer temperature comparison result is Wb<Wj, and the second inner layer temperature comparison result is Wb≥Wj.

[0091] Specifically, when the collection unit 171 determines that the gas filled into the stirring tank 120 is heated, it means that the sediment layer of the stirring tank 120 is relatively thick and the external environment temperature is relatively low. In order to give full play to the fermentation effect, the temperature Wj in the stirring tank 120 and the temperature Wb of the air in the insulation layer 130 are further determined. When the temperature Wb of the air in the insulation layer 130 is relatively low, it means that even if the gas with suitable temperature is filled into the stirring tank 120, the time for its effect is limited. At this time, the temperature of the air in the insulation layer 130 needs to be increased first, so that the fermentation can be fully achieved. At this time, the collection unit 171 first closes the first solenoid valve 123 and the second solenoid valve 162. The second solenoid valve 162 is close to the side of the air supply device 160 and is located at the insulation layer 130. The second blowing nozzle 163 is opened, and the air supply device 160 fills the insulation layer 130 with heated gas. At this time, the gas can be air. It is understood that when the insulation layer 130 is inflated, it is preferred to set an exhaust valve on the upper part of the insulation layer 130, and exhaust gas is discharged through the exhaust valve when the heated gas is charged, so as to maintain a stable pressure in the insulation layer 130. The second blowing nozzle 163 is closed until the temperature Wb of the air in the insulation layer 130 is higher than the temperature Wj in the stirring tank 120. When the temperature of the air in the insulation layer 130 is appropriate, it is only necessary to heat the temperature charged into the fermentation tank.

[0092] It is understandable that under the result of the first inner layer temperature comparison, Wb<Wj, and the acquisition unit 171 determines to heat the insulation layer 130. Taking into account the large temperature difference between the inside and outside of the stirring tank 120, the insulation layer 130 is heated first to ensure that the temperature of the air in the insulation layer 130 is suitable enough, thereby effectively improving the fermentation effect. Under the result of the second inner layer temperature comparison, Wb≥Wj, at this time, there is no need to heat the insulation layer 130 to avoid unnecessary energy waste. Through intelligent judgment of differential temperatures, precise heating control of the insulation layer 130 is achieved. It helps to improve the control ability of the fermentation process in a complex working environment, so that the device can better adapt to fermentation requirements under different temperature conditions.

[0093] In some embodiments of the present application, when the acquisition unit 171 determines to heat the gas charged into the stirring tank 120, it includes: the acquisition unit 171 obtains the temperature difference △W between the ambient temperature W and the ambient temperature threshold Wmin, △W=Wmin-W. The acquisition unit 171 controls the gas supply device 160 to heat the gas charged into the stirring tank 120, and the heating power is positively correlated with the temperature difference △W.

[0094] Specifically, when the gas is charged into the stirring tank 120, the first solenoid valve 123 and the second solenoid valve 162 are opened, and the gas charged into the stirring tank 120 is preferably nitrogen, which helps to maintain the anaerobic fermentation process. When the gas is charged into the stirring tank 120, an exhaust valve is preferably provided on the sealing layer 140 to discharge cold air when the heated gas is charged, so as to maintain the pressure level in the stirring tank 120. The acquisition unit 171 compares the temperature difference △W with the first preset temperature difference △W1 and the second preset temperature difference △W2 respectively, △W1>△W2, and determines the heating power according to the comparison result. When △W≥△W1, it means that the temperature difference is large at this time, and the heating power of the gas supply device 160 is determined to be the first heating power P1. When △W2≤△W<△W1, it means that the temperature difference is moderate at this time, and the heating power of the gas supply device 160 is determined to be the second heating power P2. When ΔW<ΔW2, it means that the temperature difference is small, and the heating power of the air supply device 160 is determined to be the third heating power P3. P1>P2>P3.

[0095] It can be understood that the present embodiment controls the heating power by the temperature difference, and adjusts the heating treatment of the gas more flexibly and intelligently under different ambient temperature conditions, so as to achieve better energy saving and fermentation effects.

[0096] In some embodiments of the present application, when the adjustment unit 172 determines whether to adjust the inflation rate according to the change rate, it includes: the adjustment unit 172 obtains the second deposition layer thickness H20 according to the second image data, and obtains the change rate S according to the second deposition layer thickness H20 and the deposition layer thickness H, S=(H-H20) / t1, where t1 represents the first preset time. The adjustment unit 172 compares the change rate S with the preset change rate threshold Smin, and determines whether to adjust the inflation rate according to the comparison result. Under the first rate judgment result, the adjustment unit 172 determines to adjust the inflation rate and controls the air supply device 160 to operate at the adjusted inflation rate. Under the second rate judgment result, the adjustment unit 172 determines not to adjust the inflation rate and controls the air supply device 160 to maintain the original inflation rate. Among them, the first rate judgment result is S<Smin, and the second rate judgment result is S≥Smin.

[0097] Specifically, when the first rate judgment result is S<Smin, it means that the change rate of the sediment layer is small and insufficient to meet the needs of fermentation, and the adjustment unit 172 determines to adjust the inflation rate. In this case, the adjustment unit 172 controls the gas supply device 160 to operate at the adjusted inflation rate. When the second rate judgment result is S≥Smin, it means that the change rate of the sediment layer has reached or exceeded the preset minimum change rate threshold, and it is determined that the inflation rate does not need to be adjusted.

[0098] It can be understood that by introducing the adjustment judgment based on the change rate of the sediment layer thickness, the inflation rate is adjusted according to the actual change of the sediment layer, the fermentation effect is improved, and unnecessary frequent adjustments are avoided, ensuring the stability of operation.

[0099] In some embodiments of the present application, when the adjustment unit 172 determines to adjust the inflation rate, it includes: the adjustment unit 172 is also configured to compare the change rate S with the first preset change rate S1 and the second preset change rate S2 respectively, S1<S2<Smin, and determine the rate adjustment coefficient according to the comparison result to adjust the inflation rate of the air supply device 160. Under the first rate comparison result, the adjustment unit 172 determines the first rate adjustment coefficient A1 to adjust the inflation rate of the air supply device 160. Under the second rate comparison result, the adjustment unit 172 determines the second rate adjustment coefficient A2 to adjust the inflation rate of the air supply device 160. Under the third rate comparison result, the adjustment unit 172 determines the third rate adjustment coefficient A3 to adjust the inflation rate of the air supply device 160. Among them, the first rate comparison result is S≤S1, the second rate comparison result is S1<S≤S2, the third rate comparison result is S2<S<Smin, A1>A2>A3.

[0100] Specifically, after the acquisition unit 171 determines that the inflation rate of the air supply device 160 is the i-th inflation rate Vi according to the thickness difference △H, the adjustment unit 172 compares the change rate S with the first preset change rate S1 and the second preset change rate S2 respectively, S1<S2<Smin, and adjusts the inflation rate of the air supply device 160 according to the rate adjustment coefficient based on the comparison result. When S≤S1, the first rate adjustment coefficient A1 is determined to adjust the inflation rate of the air supply device 160, and the adjusted inflation rate is obtained as Vi*A1. When S1<S≤S2, the second rate adjustment coefficient A2 is determined to adjust the inflation rate of the air supply device 160, and the adjusted inflation rate is obtained as Vi*A2. When S2<S<Smin, the third rate adjustment coefficient A3 is determined to adjust the inflation rate of the air supply device 160, and the adjusted inflation rate is obtained as Vi*A3.

[0101] It is understandable that different adjustment coefficients are used in different rate ranges to achieve a more precise adjustment of the inflation rate of the gas supply device 160. For example, when the rate of change is small, A1 is used for adjustment, and when the rate of change is moderate or large, A2 and A3 are used for adjustment respectively. It helps to better match the actual needs of the fermentation process and improve the fermentation effect and production efficiency. By selecting different adjustment coefficients according to different ranges of the rate of change, the device has dynamic adaptability during operation. It can respond to different stages of sediment layer changes more flexibly, so that appropriate adjustment coefficients are used at different stages, which improves the adaptability of the system in complex environments.

[0102] In some embodiments of the present application, when the judgment unit 173 judges whether there is a deposition layer according to the third image data, it includes: the judgment unit 173 obtains the third deposition layer thickness H30 according to the third image data, and judges whether there is a deposition layer according to the third deposition layer thickness H30. When H30>0, the judgment unit 173 determines that there is a deposition layer, and turns on the mechanical motor 151 for mechanical stirring. When H30=0, the judgment unit 173 determines that there is no deposition layer, does not turn on the mechanical motor 151, and stops gas stirring after a third preset time. When the judgment unit 173 determines to turn on the mechanical motor 151, it includes: the judgment unit 173 controls the rotation rate of the mechanical motor 151 to be positively correlated with the third deposition layer thickness H30, and turns off the mechanical motor 151 when the third deposition layer thickness H30 is equal to 0.

[0103] Specifically, when it is determined that the thickness H30 of the third deposition layer is greater than zero, the mechanical motor 151 is turned on for mechanical stirring. The judgment unit 173 compares the thickness H30 of the third deposition layer with the first preset thickness H31 and the second preset thickness H32, H31>H32, and the judgment unit 173 determines the rotation rate of the mechanical motor 151 according to the comparison result. When H30≥H31, the rotation rate of the mechanical motor 151 is determined to be the first rotation rate E1. When H31>H30≥H32, the rotation rate of the mechanical motor 151 is determined to be the second rotation rate E2. When H32>H30, the rotation rate of the mechanical motor 151 is determined to be the third rotation rate E3. E1>E2>E3.

[0104] It is understandable that by dynamically controlling the rotation rate of the mechanical motor 151, adjustment is made according to the actual thickness of the deposited layer, avoiding excessive or insufficient mechanical stirring, which helps to optimize the energy efficiency of the system, reduce energy consumption, and ensure that mechanical stirring can be performed in time when needed, thereby improving the performance and reliability of the overall system.

[0105] The above-mentioned embodiment combines gas stirring and mechanical stirring. Gas stirring can evenly mix liquids at a lower cost. When gas stirring cannot meet the stirring requirements, mechanical stirring is used to solve the material deposition problem, making the production of fermented feed more efficient. A control device is equipped to intelligently determine whether there is a sediment layer during the fermentation process and whether gas stirring or mechanical stirring is required by collecting data from an image sensor. The automation and controllability of the fermentation process are improved. Whether to heat the gas filled into the stirring tank is determined according to the ambient temperature, thereby solving the adverse effect of the low gas temperature in winter on the gas stirring effect. By detecting the rate of change of the sediment layer and adjusting the gas filling rate, the effect of gas stirring can be more accurately controlled to avoid the problem of insufficient or excessive stirring. An observation window and an image sensor are provided, so that the situation during the fermentation process can be observed in real time, and image data can be used for judgment and adjustment, thereby improving the degree of automation of the production process.

[0106] See also Figure 5 As shown, the present application also proposes a fermented feed stirring control method, which is applied to the above-mentioned fermented feed stirring device, comprising:

[0107] S100: acquiring first image data of the observation window through an image sensor, acquiring a thickness of a deposition layer according to the first image data, and determining whether to perform gas stirring according to the thickness of the deposition layer;

[0108] S200: After it is determined that gas stirring is to be performed, the ambient temperature is collected and it is determined whether to heat the gas filled into the stirring tank according to the ambient temperature;

[0109] S300: after determining whether to heat the gas filled into the stirring tank, collecting second image data of the observation window after the gas stirring is operated for a first preset time, obtaining a change rate of the deposition layer according to the second image data and the first image data, and determining whether to adjust the filling rate according to the change rate;

[0110] S400: after determining whether to adjust the inflation rate, collecting third image data of the observation window after a second preset time, and judging whether there is a sediment layer according to the third image data;

[0111] If it is determined that a sediment layer exists, the mechanical motor is turned on for mechanical stirring;

[0112] If it is determined that no sediment layer exists, the mechanical motor is not turned on, and the gas stirring is stopped after a third preset time.

[0113] It is understandable that the method realizes the combination of gas stirring and mechanical stirring. Gas stirring can evenly mix liquids at a lower cost. When gas stirring cannot meet the stirring requirements, mechanical stirring is used to solve the material deposition problem, making the production of fermented feed more efficient. Equipped with a control device, by collecting data from an image sensor, it can intelligently determine whether there is a sediment layer during the fermentation process and whether gas stirring or mechanical stirring is required. The automation and controllability of the fermentation process are improved. Whether to heat the gas filled into the stirring tank is determined according to the ambient temperature, thereby solving the adverse effect of the low gas temperature in winter on the gas stirring effect. By detecting the rate of change of the sediment layer and adjusting the gas filling rate, the effect of gas stirring can be more accurately controlled to avoid the problem of insufficient or excessive stirring. An observation window and an image sensor are set up to observe the situation during the fermentation process in real time, and use image data for judgment and adjustment, thereby improving the degree of automation of the production process.

[0114] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems or computer program products. Therefore, the present application may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present application may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0115] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems) and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0116] These computer program instructions may also be stored in a computer readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0117] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0118] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A fermented feed stirring device, characterized in that: include: outer shell; A stirring tank is arranged inside the outer shell, and the stirring tank is used for fermenting feed; a pneumatic device is arranged on the side of the stirring tank and near the bottom, and a plurality of blowing nozzles are arranged on the pneumatic device. A first solenoid valve is arranged at the connection position between the pneumatic device and the stirring tank; an observation window is also arranged on the side of the stirring tank; A heat-insulating layer is provided between the outer shell and the stirring tank, wherein the heat-insulating layer is provided with an image sensor at a position corresponding to the observation window, and the image sensor is used to capture image data of the observation window; A sealing layer is arranged on the upper part of the stirring tank, and the sealing layer is used to seal the stirring tank; An upper cover body is arranged on the upper part of the sealing layer, and a mechanical motor and a stirring rod are fixedly arranged on the upper cover body. The stirring rod passes through the sealing layer and extends into the cavity of the stirring tank, and the stirring rod is used to stir the fermented feed; the mechanical motor is used to drive the stirring rod; An air supply device is arranged on one side of the outer shell, and a connecting pipe of the air supply device is connected to the pneumatic device; the connecting pipe is provided with a second solenoid valve and a second air blowing nozzle between the thermal insulation layer and the stirring tank, and the second air blowing nozzle is used to fill gas into the thermal insulation layer; A control device is used to control gas stirring and mechanical stirring, and the control device includes a collection unit, an adjustment unit and a judgment unit, wherein: The acquisition unit is configured to acquire first image data of the observation window through the image sensor, acquire the thickness of the deposition layer according to the first image data, and determine whether to perform gas stirring according to the thickness of the deposition layer; When the collection unit determines to perform gas stirring, the collection unit is further configured to collect the ambient temperature and determine whether to heat the gas filled into the stirring tank according to the ambient temperature; The adjustment unit is configured to collect second image data of the observation window after the gas stirring is operated for a first preset time after determining whether to heat the gas filled into the stirring tank, obtain a change rate of the deposition layer according to the second image data and the first image data, and determine whether to adjust the filling rate according to the change rate; The judgment unit is configured to collect third image data of the observation window after a second preset time after determining whether to adjust the inflation rate, and judge whether there is a sediment layer according to the third image data; If the determination unit determines that a sediment layer exists, the mechanical motor is turned on to perform mechanical stirring; If the determination unit determines that there is no deposition layer, the mechanical motor is not turned on, and the gas stirring is stopped after a third preset time. The collecting unit determines whether to perform gas stirring according to the thickness of the deposition layer, including: The acquisition unit compares the deposition layer thickness H with a preset deposition layer thickness threshold Hmax, and determines whether to perform the gas stirring according to the comparison result; Under the first thickness comparison result, the acquisition unit determines to start the gas stirring; Under the second thickness comparison result, the acquisition unit determines not to start the gas stirring; Wherein, the first thickness comparison result is H>Hmax, and the second thickness comparison result is H≤Hmax; When the collection unit determines to start the gas stirring, the collection unit determines whether to heat the charged gas according to the ambient temperature, including: The acquisition unit compares the ambient temperature W with a preset ambient temperature threshold Wmin, and determines whether to heat the gas filled into the stirring tank according to the comparison result; Under the first temperature comparison result, the acquisition unit determines to heat the gas filled into the stirring tank; Under the second temperature comparison result, the acquisition unit determines not to heat the gas charged into the stirring tank; Wherein, the first temperature comparison result is W<Wmin, and the second temperature comparison result is W≥Wmin; When the adjustment unit determines whether to adjust the inflation rate according to the change rate, it includes: The adjusting unit acquires the second deposition layer thickness H20 according to the second image data, and obtains the change rate S according to the second deposition layer thickness H20 and the deposition layer thickness H, where S=(H-H20) / t1, wherein t1 represents the first preset time; The adjustment unit compares the change rate S with a preset change rate threshold Smin, and determines whether to adjust the inflation rate according to the comparison result; Under the first rate judgment result, the adjustment unit determines to adjust the inflation rate, and controls the air supply device to operate at the adjusted inflation rate; Under the second rate judgment result, the adjustment unit determines not to adjust the inflation rate, and controls the air supply device to maintain the original inflation rate; The first rate determination result is S<Smin, and the second rate determination result is S≥Smin; When the judging unit judges whether there is a deposition layer according to the third image data, it includes: The judging unit acquires a third deposition layer thickness H30 according to the third image data, and judges whether a deposition layer exists according to the third deposition layer thickness H30; When H30>0, the judgment unit determines that a sediment layer exists, and turns on the mechanical motor to perform the mechanical stirring; When H30=0, the judgment unit determines that there is no deposition layer, does not start the mechanical motor, and stops the gas stirring after a third preset time; When the judging unit determines to turn on the mechanical motor, the method includes: The judgment unit controls the rotation speed of the mechanical motor to be in a positive correlation with the thickness H30 of the third deposition layer, and turns off the mechanical motor when the thickness H30 of the third deposition layer is equal to 0.

2. The fermented feed stirring device according to claim 1, characterized in that: When the collection unit determines to start the gas stirring, the method further includes: The acquisition unit calculates a thickness difference △H between the deposition layer thickness H and the deposition layer thickness threshold Hmax, △H=H-Hmax; The collecting unit controls the inflation rate of the air supply device to be positively correlated with the thickness difference ΔH.

3. The fermented feed stirring device according to claim 1, characterized in that: When the collection unit determines to heat the gas charged into the stirring tank, it also includes: The collecting unit collects the temperature Wb of the air in the insulation layer and the temperature Wj in the stirring tank, compares the temperature Wb of the air in the insulation layer with the temperature Wj in the stirring tank, and determines whether to heat the insulation layer according to the comparison result; Based on the first inner layer temperature comparison result, the acquisition unit determines to heat the insulation layer; Under the second inner layer temperature comparison result, the acquisition unit determines not to heat the thermal insulation layer; Among them, the first inner layer temperature comparison result is Wb<Wj, and the second inner layer temperature comparison result is Wb≥Wj.

4. The fermented feed stirring device according to claim 3, characterized in that: When the collection unit determines to heat the gas filled into the stirring tank, the method includes: The acquisition unit obtains a temperature difference ΔW between the ambient temperature W and the ambient temperature threshold Wmin, ΔW=Wmin-W; The heating power of the gas supply device controlled by the acquisition unit to the gas filled into the stirring tank is positively correlated with the temperature difference ΔW.

5. The fermented feed stirring device according to claim 1, characterized in that: When the adjustment unit determines to adjust the inflation rate, it includes: The adjustment unit is further configured to compare the change rate S with a first preset change rate S1 and a second preset change rate S2, respectively, S1<S2<Smin, and determine a rate adjustment coefficient according to the comparison result to adjust the inflation rate of the air supply device; Under the first rate comparison result, the adjustment unit determines a first rate adjustment coefficient A1 to adjust the inflation rate of the air supply device; Under the second rate comparison result, the adjustment unit determines a second rate adjustment coefficient A2 to adjust the inflation rate of the air supply device; Under the third rate comparison result, the adjustment unit determines a third rate adjustment coefficient A3 to adjust the inflation rate of the air supply device; Among them, the first rate comparison result is S≤S1, the second rate comparison result is S1<S≤S2, the third rate comparison result is S2<S<Smin, A1>A2>A3.

6. A fermented feed stirring control method, applied to the fermented feed stirring device according to any one of claims 1 to 5, characterized in that: include: acquiring first image data of the observation window through an image sensor, acquiring the thickness of the deposition layer according to the first image data, and determining whether to perform gas stirring according to the thickness of the deposition layer; When it is determined that gas stirring is to be performed, the ambient temperature is collected and it is determined whether to heat the gas filled into the stirring tank according to the ambient temperature; After determining whether to heat the gas filled into the stirring tank, collecting second image data of the observation window after the gas stirring is run for a first preset time, obtaining a change rate of the deposition layer according to the second image data and the first image data, and determining whether to adjust the filling rate according to the change rate; After determining whether to adjust the inflation rate, collecting third image data of the observation window after a second preset time, and judging whether there is a sediment layer according to the third image data; If it is determined that a sediment layer exists, the mechanical motor is turned on for mechanical stirring; If it is determined that no deposition layer exists, the mechanical motor is not turned on, and the gas stirring is stopped after a third preset time.

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