Energy-saving and environmentally friendly grinding equipment for soybean wax production

Abstract

The present invention relates to the field of oil refining production, and in particular to an energy-saving and environmentally friendly grinding device for soybean wax production. The device includes a feeding mechanism, a crushing mechanism, a feeding mechanism, an oil pressing mechanism, a camera mechanism and a control mechanism. The present invention monitors the oil-extracting process of soybean oil in real time, analyzes the abnormal reasons by associating crushing parameters and oil pressing parameters, and accurately adjusts the equipment parameters to improve the intelligent intensity of the production process. Since the soybean particle size affects the oil release inside the soybean, finer soybean particles are more likely to release oil, but if they are too fine, the equipment may be unstable. Therefore, by optimizing the soybean crushing parameters, the best soybean particle size suitable for the current environment is selected to ensure the best oil pressing effect. Since the appropriate amount of enzyme addition can also promote the release of soybean oil, the peak value in the oil yield change curve is used as a feedback signal to adjust the opening and closing of the feed valve, realize automatic control of feeding, and improve the oil pressing efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of oil production, and in particular to energy-saving and environment-friendly grinding equipment for soybean wax production. Background Art

[0002] Paraffin is a substance extracted from petroleum. Using it means indirectly using fossil fuels, which is not conducive to environmental protection and sustainable development. Soybean wax is a natural plant wax extracted from soybean oil. It not only has the thermodynamic properties of paraffin, but also has the advantages of being non-toxic, pollution-free, widely available, and renewable. Soybean wax is made by refining soybean oil. The conventional oil-making process is traditional hot pressing and organic solvent extraction. Traditional hot pressing technology requires high temperature treatment, which makes the soybean protein in the product soybean meal highly denatured, and the quality of the resulting soybean meal is poor. The solvent extraction process may cause solvent residues in the oil and cake, causing health hazards. Therefore, how to use energy-saving and environmentally friendly methods to improve the recovery rate of soybean oil is of great significance to the production of soybean wax.

[0003] Patent document with publication number CN117815701A discloses a leaching and extraction device for soybean oil production, including an extractor shell and an extractor cylinder mounted in the extractor shell, wherein a plurality of extracting grids are arranged in the extractor cylinder, a rotating gear ring is mounted on the outer wall of the extractor cylinder, and a driving motor reducer is arranged on the outer side of the extractor shell; it can be seen that the existing soybean oil extraction technology lacks optimization of the process parameters of the grinding process to obtain the optimal particle size, making it difficult for the soybean oil to flow out of the soybean cells during the pressing process, resulting in a low oil extraction rate. Summary of the invention

[0004] To this end, the present invention provides an energy-saving and environmentally friendly grinding device for soybean wax production, which is used to overcome the problem in the prior art that it is difficult to ensure effective destruction of soybean cells and the oil extraction rate is low due to the lack of optimization of process parameters of the grinding process.

[0005] To achieve the above object, the present invention provides an energy-saving and environmentally friendly grinding device for soybean wax production, comprising:

[0006] A feeding mechanism, which is used to hold soybean raw materials;

[0007] A pulverizing mechanism connected to the feeding mechanism, used to pulverize the soybean raw material according to pulverizing parameters to obtain soybean particles, wherein the pulverizing parameters include a real-time pulverized particle size;

[0008] A feeding mechanism, used for containing the soybean particles, comprising a feeding port provided with a feeding valve;

[0009] An oil pressing mechanism connected to the crushing mechanism is used to press the soybean particles according to the oil pressing parameters to obtain the soybean oil, the oil pressing mechanism includes an oil storage chamber for collecting the soybean oil and a screw rod for driving the soybean particles to move, and the oil pressing parameters include the amount of compound enzyme added;

[0010] A camera mechanism, which is arranged on one side of the oil discharge port, and is used to take a picture of the upper surface of the oil storage chamber to obtain a real-time grease image;

[0011] The control mechanism is connected to the feeding mechanism, the crushing mechanism and the oil pressing mechanism respectively, and is used to monitor the pressing process in real time, determine whether to adjust the real-time crushing particle size according to the comparison result between the real-time oil yield and the standard oil yield range, and adjust the amount of compound enzyme added by regulating the opening and closing of the feed valve.

[0012] Furthermore, the control mechanism includes a calculation module, a determination module, a comparison module and an analysis module, wherein:

[0013] The calculation module is used to calculate the real-time oil output rate according to the real-time liquid level height;

[0014] The determination module determines the real-time oil yield rate according to the standard oil yield rate range to determine whether the real-time oil yield rate is within the standard oil yield rate range;

[0015] The comparison module compares the real-time oil yield rate with the maximum value or the minimum value of the standard oil yield rate range when the real-time oil yield rate is not within the standard oil yield range;

[0016] The analysis module is used to determine the oil output type or oil pressing status according to the comparison result.

[0017] Furthermore, the analysis module includes a cycle analysis unit and a grease analysis unit, wherein:

[0018] The cycle analysis unit is used to correlate the real-time oil yields of two adjacent monitoring cycles for analysis;

[0019] The oil analysis unit is used to obtain the real-time oil image for analysis and determine the oil pressing state according to the analysis result.

[0020] Furthermore, the oil analysis unit includes a calculation subunit, a comparison subunit and an analysis subunit, wherein:

[0021] The calculation subunit obtains the real-time oil residue area ratio according to the real-time oil image;

[0022] The comparison subunit compares the real-time oil residue area ratio with the standard oil residue area ratio;

[0023] The analysis subunit is used to determine whether the oil pressing state is normal or the residue leakage phenomenon occurs according to the comparison result of the oil residue area ratio, and to conduct on-site inspection and processing.

[0024] Furthermore, the calculation subunit obtains the real-time grease image, identifies and marks the outline of the oil residue, obtains the real-time oil residue area according to the outline marking, and calculates the percentage of the real-time oil residue area to the real-time grease image area as the real-time oil residue area ratio.

[0025] Furthermore, the cycle analysis unit includes an association analysis subunit, a type determination subunit and a regulation subunit, wherein:

[0026] The correlation analysis subunit is used to obtain the real-time oil yield rate corresponding to the next monitoring cycle, and correlate the real-time oil yield rates of the current monitoring cycle and the next monitoring cycle for analysis;

[0027] The type determination subunit is used to determine the oil type according to the analysis result of the association analysis subunit;

[0028] The regulating subunit is used to select an adjustment mode according to the oil output type, and to correct the real-time crushing particle size or to regulate the amount of compound enzyme added according to the adjustment mode.

[0029] Further, when the correlation analysis subunit determines that the real-time oil yield is greater than the maximum value of the standard oil yield range, the type determination subunit determines that the oil output type is discontinuous oil output, and the control subunit selects the adjustment mode as adjusting the real-time crushing particle size to the corrected crushing particle size;

[0030] When the control mechanism determines again that the real-time oil yield is less than the minimum value of the standard oil yield range, the type determination subunit determines that the oil yield type is continuous oil yield, and the control subunit selects the adjustment mode as adjusting the enzyme addition amount;

[0031] Among them, Rs'=Rs×[1+(Ms-Mmax) / Ms], Rs' is the corrected crushed particle size, Rs is the real-time crushed particle size, Ms is the real-time oil yield, and Mmax is the maximum value of the standard oil yield range.

[0032] Furthermore, when the regulating subunit adjusts the enzyme addition amount, the composite enzyme is added into the feeding mechanism, and after stirring, the raw material to be squeezed is formed and transported to the squeezing mechanism for squeezing, and the monitoring results of the squeezing process in each monitoring cycle are obtained, and the oil yield rate change trend is determined according to the monitoring results, and the opening and closing of the feeding valve is regulated according to the oil yield rate change trend.

[0033] If a peak value appears in the oil output rate variation curve, the control mechanism controls the feed valve to close;

[0034] If no peak value appears in the oil yield rate variation curve, the control mechanism does not control the feed valve to be closed.

[0035] Furthermore, the cycle analysis unit also includes a trend analysis subunit, which obtains the real-time oil yield rate of each monitoring period, draws a curve of the real-time oil yield rate changing with time, obtains an oil yield rate change curve, and determines the oil yield rate change trend according to the oil yield rate change curve.

[0036] Furthermore, the calculation module calculates the real-time oil yield rate according to the real-time liquid level height, the real-time screw speed variation and the real-time pressing temperature;

[0037] Wherein, Ms = k × Hs / T, k = a × [|ΔVs-ΔVb| / ΔVs] + b × [(Qs-Qb) / Qs], a = 0.4, b = 0.6, Ms is the real-time oil yield, T is the time length of a monitoring cycle, Hs is the real-time liquid level height of the oil storage chamber, k is the influencing factor, ΔVs is the real-time screw speed variation, ΔVb is the standard screw speed variation, Qs is the real-time pressing temperature, and Qb is the standard pressing temperature.

[0038] Compared with the prior art, the beneficial effect of the present invention is that, by real-time monitoring of the oil yield of soybean oil, when the oil yield is low, that is, when an abnormality occurs, the cause is analyzed by associating the crushing parameters and the oil pressing parameters, so as to accurately control the equipment parameters and improve the intelligent intensity of the production process. Since the soybean particle size affects the oil release inside the soybean, finer soybean particles are more likely to release oil, but if they are too fine, the equipment operation may be unstable. Therefore, by optimizing the soybean crushing parameters, the best soybean particle size suitable for the current environment is selected to ensure the best oil pressing effect and improve the oil pressing efficiency. Since the appropriate amount of enzyme addition can also promote the release of soybean oil, therefore, By analyzing the effect of adding, taking the peak value in the oil yield rate curve as the feedback signal, the control mechanism determines whether to adjust the feed valve to open, realizes automatic control of feeding, improves oil pressing efficiency and oil quality, and optimizes the crushing particle size through the associated crushing process, so that the soybean particles are continuously, evenly and stably squeezed in the pressing chamber, while avoiding the blockage of equipment caused by the particle size being too large to be pressed and the particle size being too small, thereby increasing oil production and oil yield. Physical pressing is used to avoid the energy consumption required by traditional hot pressing or chemical leaching methods and the pollutants such as wastewater and waste residue generated, thereby reducing the impact on the environment, which is beneficial to energy conservation and environmental protection, and ensures food safety and protects the environment.

[0039] Furthermore, by analyzing the real-time oil yield of adjacent period monitoring, the reason why the real-time oil yield is lower than the standard can be accurately analyzed. The real-time crushing particle size is the actual particle size of the soybean raw material after crushing. When it is determined that the real-time oil yield of the current monitoring period is less than the minimum value of the standard oil yield range, and the real-time oil yield of the next monitoring period is greater than the maximum value of the standard oil yield range, it means that the oil output is discontinuous. This is because the actual particle size is too small, the soybean raw material is in a fine powder state, and leakage occurs, blocking the machine and making it impossible to continue pressing. Therefore, it is necessary to timely adjust the crushing particle size of the crushing process appropriately. When it is determined that the real-time oil yield of the adjacent period monitoring results is less than the minimum value of the standard oil yield range, it means continuous oil output and low oil output efficiency. It is necessary to add an amount of enzyme to the raw material to be pressed, so that the cells that failed to break during the crushing process can be broken more easily through enzymatic hydrolysis, thereby releasing more soybean oil and improving oil extraction efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 This is a schematic structural diagram of an energy-saving and environmentally friendly grinding device for soybean wax production according to an embodiment of the present invention;

[0041] Figure 2 A logic decision diagram for determining the oil pressing state according to an embodiment of the present invention;

[0042] Figure 3 A logic decision diagram for determining the oil output type according to an embodiment of the present invention;

[0043] Figure 4 This is a logic decision diagram for adjusting the amount of enzyme added according to an embodiment of the present invention.

[0044] In the figure: 1-feeding mechanism, 2-crushing mechanism, 3-feeding mechanism, 301-feeding valve, 4-oil pressing mechanism, 401-oil storage chamber, 5-camera mechanism. DETAILED DESCRIPTION

[0045] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0046] The 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 used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0047] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0048] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] See also Figure 1 As shown, it is a schematic structural diagram of an energy-saving and environmentally friendly grinding device for soybean wax production according to an embodiment of the present invention. The present invention provides an energy-saving and environmentally friendly grinding device for soybean wax production, comprising:

[0050] A feeding mechanism 1, which is used to hold soybean raw materials;

[0051] A crushing mechanism 2, which is connected to the feeding mechanism and is used to crush the soybean raw material according to crushing parameters to obtain soybean particles, wherein the crushing parameters include real-time crushing particle size and moisture;

[0052] A feeding mechanism 3, used for containing the soybean particles;

[0053] An oil pressing mechanism 4, which is connected to the crushing mechanism, comprises an oil storage chamber 401 for collecting soybean oil and a screw rod for driving the soybean particles to move, and the oil pressing mechanism is used to press the soybean particles according to oil pressing parameters to obtain the soybean oil, and the oil pressing parameters include the amount of compound enzyme added, the pressing temperature and the standard screw rod speed;

[0054] A camera mechanism 5, which is arranged on one side of the oil discharge port, is used to take a picture of the upper surface of the oil storage chamber to obtain a real-time grease image;

[0055] A control mechanism is connected to the feeding mechanism, the crushing mechanism and the oil pressing mechanism respectively, and is used to monitor the pressing process in real time, and determine whether to adjust the crushing parameters and the oil pressing parameters according to the comparison result between the real-time oil yield and the standard oil yield range.

[0056] In this embodiment, the oil yield of soybean oil is monitored in real time. When the oil yield is low, that is, abnormal, the cause is analyzed by associating the crushing parameters and the oil pressing parameters to accurately control the equipment parameters and improve the intelligent intensity of the production process. Since the soybean particle size affects the oil release inside the soybean, finer soybean particles are more likely to release oil, but if they are too fine, the equipment operation may be unstable. Therefore, the soybean crushing parameters are optimized to select the best soybean particle size suitable for the current environment to ensure the best oil pressing effect and improve the oil pressing efficiency. Since the appropriate amount of enzyme addition can also promote the release of soybean oil, the addition effect is analyzed. The peak value in the oil yield rate curve is used as the feedback signal, and the control mechanism is used to determine whether to adjust the feed valve to open, so as to realize automatic control of feeding, improve the oil pressing efficiency and oil quality, and optimize the crushing particle size through the associated crushing process, so that the soybean particles are continuously, evenly and stably squeezed in the pressing chamber, while avoiding the problem that the particle size is too large and difficult to press and the particle size is too small so that the oil material blocks the equipment, thereby increasing the oil yield and oil yield. The physical pressing method is used to avoid the energy consumption required by traditional hot pressing or chemical leaching methods and the pollutants such as wastewater and waste residue generated, thereby reducing the impact on the environment, which is beneficial to energy conservation and environmental protection, and ensures food safety and protects the environment.

[0057] Working process: put the preheated soybeans in the feeding mechanism into the crushing mechanism for crushing. When soybean particles are placed in the feeding mechanism, start the oil pressing mechanism. Under the extrusion of the oil pressing mechanism, the soybean particles are gradually pressed toward the discharge port of the pressing chamber, thereby squeezing out the oil in the soybeans and storing them in the oil storage chamber; the preheating temperature is 80℃, and the crushing particle size can be set to 40 meshes.

[0058] Specifically, the control mechanism obtains the real-time liquid level height of the oil storage chamber in the current monitoring cycle to calculate the real-time oil yield rate, and determines the real-time oil yield rate according to the standard oil yield rate range.

[0059] If the real-time oil yield rate is not within the standard oil yield rate range, the control mechanism compares the real-time oil yield rate with the standard oil yield rate range;

[0060] If the real-time oil yield is within the standard oil yield range, the control mechanism determines that the soybean oil yield is normal and the crushing parameters match the oil pressing parameters.

[0061] The standard oil yield rate set in this embodiment is in the range of 48%-79%, and is adjusted according to the actual specifications of the oil pressing equipment and the oil pressing needs; the monitoring period can be set to 3 seconds or 30 seconds, and is adjusted according to the actual operation needs.

[0062] The real-time oil yield is determined according to the standard oil yield range. If the real-time oil yield is not within the standard oil yield range, it means that the oil yield deviates from the standard and an abnormality occurs. Then, by analyzing the cause, targeted adjustments are made to the crushing parameters or enzyme addition amount to optimize the production process and make the parameter settings more applicable, thereby achieving continuous and stable production while maximizing energy utilization.

[0063] Specifically, the control mechanism determines to compare the real-time oil yield rate with the standard oil yield rate range.

[0064] If the real-time oil yield rate is less than the minimum value of the standard oil yield rate range, the control mechanism analyzes the monitoring results of the next monitoring cycle;

[0065] If the real-time oil yield is greater than the maximum value of the standard oil yield range, the control mechanism acquires the real-time oil image taken by the camera device for analysis, and determines the oil pressing state according to the analysis result.

[0066] When it is determined that the oil yield deviates from the standard, the real-time oil yield is compared with the standard oil yield range to further accurately analyze the cause. If the real-time oil yield is determined to be less than the minimum value of the standard oil yield range, it means that the oil yield is low. Then the data of the next monitoring cycle is obtained for analysis to determine whether the low oil yield is continuous or intermittent. If the real-time oil yield is determined to be greater than the maximum value of the standard oil yield range, it means that the oil yield is high. Then it is necessary to monitor the oil status to ensure the oil quality.

[0067] See also Figure 2 As shown, it is a logic determination diagram for determining the oil pressing state according to an embodiment of the present invention;

[0068] Specifically, the control mechanism obtains the real-time oil residue area ratio according to the real-time oil image, and compares the real-time oil residue area ratio with the standard oil residue area ratio.

[0069] If the real-time oil residue area ratio is less than or equal to the standard oil residue area ratio, the control mechanism determines that the oil pressing state is normal;

[0070] If the real-time oil residue area ratio is greater than the standard oil residue area ratio, the control mechanism determines that residue leakage has occurred and conducts on-site inspection and processing.

[0071] The standard oil residue area ratio set in this embodiment represents the content of oil residue in the oil storage chamber. Generally, the standard oil residue area ratio is set between 3% and 5%, and is selected according to the actual area of ​​the oil storage chamber and the oil pressing demand.

[0072] Specifically, the control mechanism obtains the real-time grease image, identifies and marks the outline of the oil residue, obtains the real-time oil residue area according to the outline mark, and calculates the percentage of the real-time oil residue area to the real-time grease image area as the real-time oil residue area ratio.

[0073] In this embodiment, real-time grease images of the upper surface of the oil storage chamber are captured at regular intervals during the monitoring period. Image noise is removed and image quality is enhanced by using methods such as Gaussian filtering. The image is converted into a grayscale image to reduce computational complexity. The Canny edge detection algorithm is used to detect image edges and identify oil residue areas. A regional growing algorithm or a threshold segmentation algorithm is used to separate the oil residue area from the background. The outline of the oil residue area is marked using image processing libraries such as OpenCV.

[0074] Under normal circumstances, oil should be relatively pure and contain a small amount of oil residue. However, when residue leakage occurs, the oil on the upper surface of the oil storage chamber contains more oil residue. This is because the oil that has not been fully squeezed is directly discharged, resulting in more residue mixed in the oil. Therefore, a camera device is installed at the oil outlet to capture the real-time image of the oil pressing product. The collected image is identified and analyzed to detect the residue leakage phenomenon. The area and proportion of the oil residue area are calculated to evaluate the severity of the residue leakage phenomenon. When it is determined that the real-time oil residue area ratio is greater than the standard oil residue area ratio, on-site inspection and processing are carried out in time to improve the intelligence of the production process, save energy and protect the environment, and ensure the quality and stability of oil production.

[0075] Specifically, the control mechanism obtains the real-time oil yield rate corresponding to the next monitoring cycle, determines the real-time oil yield rate according to the standard oil yield rate range, determines the oil yield type according to the determination result, and selects the adjustment mode according to the oil yield type.

[0076] The method is simple and effective to analyze the stability and continuity of oil output by correlating the oil output rates of adjacent cycles.

[0077] See also Figure 3 As shown, it is a logic decision diagram for determining the oil output type according to an embodiment of the present invention;

[0078] Specifically, when the control mechanism determines that the real-time oil output rate is greater than the maximum value of the standard oil output rate range, it determines that the oil output is discontinuous, and the adjustment mode is to adjust the real-time crushed particle size to the corrected crushed particle size;

[0079] When the control mechanism determines again that the real-time oil yield is less than the minimum value of the standard oil yield range, it is determined that the oil is continuously discharged, and the adjustment mode is to adjust the enzyme addition amount;

[0080] Among them, Rs'=Rs×[1+(Ms-Mmax) / Ms], Rs' is the corrected crushed particle size, Rs is the real-time crushed particle size, Ms is the real-time oil yield, and Mmax is the maximum value of the standard oil yield range.

[0081] By analyzing the real-time oil yield of adjacent period monitoring, the reasons why the real-time oil yield is lower than the standard can be accurately analyzed. The real-time crushing particle size is the actual particle size of the soybean raw material after crushing. When it is determined that the real-time oil yield of the current monitoring period is less than the minimum value of the standard oil yield range, and the real-time oil yield of the next monitoring period is greater than the maximum value of the standard oil yield range, it means that the oil output is discontinuous. This is because the actual particle size is too small, the soybean raw material is in a fine powder state, and leakage occurs, blocking the machine and making it impossible to continue pressing. Therefore, it is necessary to timely adjust the crushing particle size of the crushing process appropriately. When it is determined that the real-time oil yield of the adjacent period monitoring results is less than the minimum value of the standard oil yield range, it means continuous oil output and low oil output efficiency. In this case, it is necessary to add an amount of enzyme to the raw material to be pressed, so that the cells that failed to break during the crushing process can be broken more easily through enzymatic hydrolysis, thereby releasing more soybean oil and improving oil extraction efficiency and quality.

[0082] See also Figure 4 As shown, it is a logic decision diagram for adjusting the amount of enzyme added according to an embodiment of the present invention;

[0083] Specifically, the control mechanism controls and regulates the opening and closing of the feed valve 301, adds the complex enzyme into the feed mechanism, stirs the raw material to be squeezed, and transports it to the squeezing mechanism for squeezing.

[0084] In this embodiment, the ratio of the composite enzyme is alkaline protease: cellulase is equal to 2:1. Using composite cellulase and alkaline protease to treat soybean particles can degrade the cellulose skeleton of the soybean particle cell wall, collapse the soybean particle cell wall, make the effective ingredients in the plant cells fully free, and improve the extraction rate of substances in the soybean cells.

[0085] Specifically, the control mechanism obtains the real-time oil yield rate of each monitoring period, plots a curve of the real-time oil yield rate changing over time, obtains an oil yield rate changing curve, and determines the closing of the feed valve according to the oil yield rate changing curve;

[0086] If a peak value appears in the oil output rate variation curve, the control mechanism controls the feed valve to close;

[0087] If no peak value appears in the oil yield rate variation curve, the control mechanism does not control the feed valve to be closed.

[0088] Since the addition of compound enzymes can promote the release of oil, if the amount of compound enzymes added is too much, the reaction between the enzyme and the substrate will reach saturation, which will affect the release effect of the oil. Therefore, if it is judged that a peak appears in the oil yield change curve, the oil yield no longer increases, and a downward trend appears, indicating that the reaction between the enzyme and the substrate has reached saturation, the feed valve is controlled to be closed in time to increase the oil yield and avoid material waste. If it is judged that no peak appears in the oil yield change curve, it means that with the addition of compound enzymes in soybean particles, the cell wall cellulose skeleton is effectively degraded, the plant cell wall is ruptured, and the release of oil in soybean cells is promoted. Then, the compound enzyme continues to be added, and the peak value in the oil yield change curve is used as a feedback signal to adjust the opening and closing of the feed valve, so as to realize automatic control of feeding and improve the oil extraction efficiency.

[0089] Specifically, the control mechanism calculates the real-time oil yield rate according to the real-time liquid level height, the real-time screw speed variation and the real-time pressing temperature;

[0090] Wherein, Ms = k × Hs / T, k = a × [|ΔVs-ΔVb| / ΔVs] + b × [(Qs-Qb) / Qs], a = 0.4, b = 0.6, Ms is the real-time oil yield, T is the time length of a monitoring cycle, Hs is the real-time liquid level height of the oil storage chamber, k is the influencing factor, ΔVs is the real-time screw speed variation, ΔVb is the standard screw speed variation, Qs is the real-time pressing temperature, and Qb is the standard pressing temperature.

[0091] In this embodiment, the standard pressing temperature is 200°C, which is measured in advance by the experiment. The real-time pressing temperature is the temperature data detected by the temperature sensor set on the sleeve of the pressing mechanism. The real-time screw speed variation is the absolute value of the difference between the actual screw speed and the standard screw speed set by the equipment operation parameters. The standard screw speed and the standard oil yield are measured in advance by the experiment. The standard screw speed is 40r / s, which can be adjusted according to the equipment specifications. The standard screw speed variation is 5r / s, and the standard oil yield is measured in advance by the experiment. Soybean particles with a moisture content of less than 12% are taken and the screw speed is adjusted to press the soybean particles. Under the same experimental conditions such as pressure and feed amount, the pressing temperature is increased to 200°C, and the pressing state of the soybean particles is monitored to avoid excessive speed. The soybean oil residue in the oil storage chamber is large, so as to obtain the optimal screw speed and liquid level height change rate of the oil storage chamber under the speed and conditions, and the standard oil yield is characterized by the liquid level height change rate.

[0092] In this embodiment, the soybean wax production process includes:

[0093] Extraction: soybean seeds are cleaned, dried, crushed, and pressed to obtain soybean oil;

[0094] A hydrogenation process in which the soybean oil is hydrogenated to form a crude soybean wax;

[0095] Refining: the crude soybean wax is refined to obtain a finished soybean wax product.

[0096] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

[0097] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An energy-saving and environmentally friendly grinding equipment for soybean wax production, characterized in that: include, A feeding mechanism, which is used to hold soybean raw materials; A pulverizing mechanism connected to the feeding mechanism, used to pulverize the soybean raw material according to pulverizing parameters to obtain soybean particles, wherein the pulverizing parameters include a real-time pulverized particle size; A feeding mechanism, used for containing the soybean particles, comprising a feeding port provided with a feeding valve; An oil pressing mechanism connected to the crushing mechanism is used to press the soybean particles according to the oil pressing parameters to obtain soybean oil, the oil pressing mechanism includes an oil storage chamber for collecting soybean oil and a screw rod for driving the soybean particles to move, and the oil pressing parameters include the amount of compound enzyme added; A camera mechanism, which is arranged on one side of the oil discharge port, and is used to take a picture of the upper surface of the oil storage chamber to obtain a real-time grease image; A control mechanism, which is connected to the feeding mechanism, the crushing mechanism and the oil pressing mechanism respectively, and is used to monitor the pressing process in real time, determine whether to adjust the real-time crushing particle size according to the comparison result between the real-time oil yield and the standard oil yield range, and adjust the amount of compound enzyme added by regulating the opening and closing of the feeding valve; The control mechanism includes a calculation module, a determination module, a comparison module and an analysis module, wherein: The calculation module is used to calculate the real-time oil output rate according to the real-time liquid level height; The determination module determines the real-time oil yield rate according to the standard oil yield rate range to determine whether the real-time oil yield rate is within the standard oil yield rate range; The comparison module compares the real-time oil yield rate with the maximum value or the minimum value of the standard oil yield rate range when the real-time oil yield rate is not within the standard oil yield range; The analysis module is used to determine the oil type or oil pressing status according to the comparison result; The analysis module includes a periodic analysis unit and a grease analysis unit, wherein: The cycle analysis unit is used to correlate the real-time oil yields of two adjacent monitoring cycles for analysis; The oil analysis unit is used to obtain the real-time oil image for analysis, and determine the oil pressing state according to the analysis result; The cycle analysis unit includes an association analysis subunit, a type determination subunit and a regulation subunit, wherein: The correlation analysis subunit is used to obtain the real-time oil yield rate corresponding to the next monitoring cycle, and correlate the real-time oil yield rates of the current monitoring cycle and the next monitoring cycle for analysis; The type determination subunit is used to determine the oil type according to the analysis result of the association analysis subunit; The regulating subunit is used to select an adjustment mode according to the oil output type, and to modify the real-time crushing particle size or to regulate the amount of compound enzyme added according to the adjustment mode; When the correlation analysis subunit determines that the real-time oil yield is greater than the maximum value of the standard oil yield range, the type determination subunit determines that the oil output type is discontinuous oil output, and the control subunit selects the adjustment mode to adjust the real-time crushing particle size to the corrected crushing particle size; When the control mechanism determines again that the real-time oil yield is less than the minimum value of the standard oil yield range, the type determination subunit determines that the oil yield type is continuous oil yield, and the control subunit selects the adjustment mode as adjusting the enzyme addition amount; Among them, Rs'=Rs×[1+(Ms-Mmax) / Ms], Rs' is the corrected crushing particle size, Rs is the real-time crushing particle size, Ms is the real-time oil yield, and Mmax is the maximum value of the standard oil yield range.

2. The energy-saving and environmentally friendly grinding equipment for soybean wax production according to claim 1, characterized in that: The oil and fat analysis unit includes a calculation subunit, a comparison subunit and an analysis subunit, wherein: The calculation subunit obtains the real-time oil residue area ratio according to the real-time oil image; The comparison subunit compares the real-time oil residue area ratio with the standard oil residue area ratio; The analysis subunit is used to determine whether the oil pressing state is normal or the residue leakage phenomenon occurs according to the comparison result of the oil residue area ratio, and to conduct on-site inspection and processing.

3. The energy-saving and environmentally friendly grinding equipment for soybean wax production according to claim 2, characterized in that: The calculation subunit obtains the real-time grease image, identifies and marks the outline of the oil residue, obtains the real-time oil residue area according to the outline marking, and calculates the percentage of the real-time oil residue area to the real-time grease image area as the real-time oil residue area ratio.

4. The energy-saving and environmentally friendly grinding equipment for soybean wax production according to claim 1, characterized in that: When the regulating subunit adjusts the enzyme addition amount, the composite enzyme is added into the feeding mechanism, and after stirring, the raw material to be squeezed is formed and transported to the squeezing mechanism for squeezing, and the monitoring results of the squeezing process in each monitoring cycle are obtained, and the oil yield rate change trend is determined according to the monitoring results, and the opening and closing of the feeding valve is regulated according to the oil yield rate change trend. If a peak value appears in the oil output rate variation curve, the control mechanism controls the feed valve to close; If no peak value appears in the oil yield rate variation curve, the control mechanism does not control the feed valve to be closed.

5. The energy-saving and environmentally friendly grinding equipment for soybean wax production according to claim 4, characterized in that: The cycle analysis unit also includes a trend analysis subunit, which obtains the real-time oil yield rate of each monitoring period, draws a curve of the real-time oil yield rate changing over time, obtains an oil yield rate changing curve, and determines the oil yield rate changing trend according to the oil yield rate changing curve.

6. The energy-saving and environmentally friendly grinding equipment for soybean wax production according to claim 5, characterized in that: The calculation module calculates the real-time oil yield rate according to the real-time liquid level height, the real-time screw speed variation and the real-time pressing temperature; Wherein, Ms=k×Hs / T, k=a×[|ΔVs-ΔVb| / ΔVs]+b×[(Qs-Qb) / Qs], a=0.4, b=0.6, Ms is the real-time oil yield, T is the time length of a monitoring cycle, Hs is the real-time liquid level height of the oil storage chamber, k is the influencing factor, ΔVs is the real-time screw speed variation, ΔVb is the standard screw speed variation, Qs is the real-time pressing temperature, and Qb is the standard pressing temperature.

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