Edible oil filtering system and control method thereof

Abstract

The invention discloses an edible oil filtering system and a control method thereof. The edible oil filtering system comprises: a mixing assembly, which is suitable for performing a mixing operation on oil to be detected and an adsorbent; the filtering assembly is connected with the mixing assembly and is suitable for filtering the mixture of the oil to be detected and the adsorbent; the oil quality detection assembly is suitable for performing real-time oil quality detection operation on the mixture of the to-be-detected oil and the adsorbent; and the control assembly is connected with the oil quality detection assembly and is suitable for acquiring an oil quality detection result of the oil quality detection assembly and controlling the filtering assembly to filter the mixture of the oil to be detected and the adsorbent when the oil quality detection result is smaller than a preset oil quality detection target. By adopting the scheme, edible oil can be efficiently filtered.

Description

Technical Field

[0001] The invention relates to the technical field of edible oil processing, and in particular to an edible oil filtering system and a control method thereof. Background Art

[0002] During the frying process, the frying oil, under high temperature, will interact with factors such as water and oxygen in the food to undergo hydrolysis, oxidation, and polymerization reactions, generating substances such as free fatty acids, oxidized triglycerides, and oxidized triglyceride polymers.

[0003] Among them, the content of free fatty acids affects the acid value of edible oil, and the acid value of edible oil reflects the degree of oxidation in edible oil. The higher the acid value of edible oil, the higher the degree of oxidation of edible oil and the worse the quality. Free fatty acids, oxidized triglycerides, oxidized triglyceride polymers and other substances are collectively referred to as polar components. The content of polar components directly affects the quality of edible oils and fats and their impact on human health. The higher the content of polar components, the higher the degree of oxidation of oils and fats, and the greater the negative impact on human health.

[0004] my country's national food safety standard GB 2716 stipulates that when the polar component content of frying oil is greater than or equal to 27% and the acid value is higher than 5 mg / g, the frying oil must be discarded and can no longer be used as frying oil. For this reason, during the preparation of fried food, the frying oil needs to be filtered to remove the polar components in order to extend the frying life of the frying oil.

[0005] In the existing edible oil filtering system, when filtering frying oil, the oil filter powder and the frying oil are usually mixed for a set time, and then the mixture of the oil filter powder and the frying oil is taken as a sample for testing. After the test is qualified, the mixture of the oil filter powder and the frying oil is filtered.

[0006] The existing edible oil filtering system is used to filter the oil used for frying, which takes a long time and has a low filtering efficiency. Summary of the invention

[0007] The problem to be solved by the present invention is: how to filter edible oil efficiently.

[0008] In order to solve the above problems, an embodiment of the present invention provides an edible oil filtering system, the edible oil filtering system comprising:

[0009] A mixing component, suitable for performing a mixing operation of the oil to be tested and the adsorbent;

[0010] A filtering component connected to the mixing component and adapted to perform a filtering operation on the mixture of the oil to be tested and the adsorbent;

[0011] An oil quality detection component, adapted to perform a real-time oil quality detection operation on a mixture of the oil to be detected and the adsorbent;

[0012] And a control component is connected to the oil quality detection component, suitable for obtaining the oil quality detection result of the oil quality detection component, and when the oil quality detection result is less than a preset oil quality detection target, controlling the filtering component to perform a filtering operation on the mixture of the oil to be detected and the adsorbent.

[0013] In a possible embodiment of the present invention, the mixing assembly includes: a mixing tank, and a mixing drive assembly connected to the mixing tank.

[0014] In a possible embodiment of the present invention, the oil quality detection component includes: an acid value detector, which is in contact with the mixture of the oil to be detected and the adsorbent, and is suitable for performing a real-time acid value detection operation on the mixture of the oil to be detected and the adsorbent.

[0015] In a possible embodiment of the present invention, the acid value detector includes: a first detection body and a first probe connected to the first detection body; the first probe is located in the mixing tank and above the mixture of the oil to be detected and the adsorbent, and the first detection body is fixed on the mixing tank.

[0016] In a possible embodiment of the present invention, the first detection body includes: a light source, an optical fiber sensor, a diffraction grating, a diode detection array and a plurality of photodiodes; the light source irradiates white light to the surface of the mixture of the oil to be detected and the adsorbent through the first probe; after the mixture of the oil to be detected and the adsorbent reflects the white light, it reaches the diffraction grating through the optical fiber sensor, and then is transmitted to the diode detection array after being split by the diffraction grating, and the signal obtained by the diode detection array is irradiated onto the photodiode.

[0017] In a possible embodiment of the present invention, the control component includes: an acid value analyzer, which is suitable for acquiring the signal sent by the photodiode and obtaining an acid value detection result.

[0018] In a possible embodiment of the present invention, the oil quality detection assembly further includes: a polar component detector, which is in contact with the mixture of the oil to be detected and the adsorbent, and is suitable for performing a real-time polar component detection operation on the mixture of the oil to be detected and the adsorbent.

[0019] In a possible embodiment of the present invention, the polar component detector includes: a second detection body and a second probe connected to the second detection body; the second probe is in contact with the mixture of the oil to be detected and the adsorbent, and the second detection body is fixed on the mixing tank.

[0020] In a possible embodiment of the present invention, the second detection body includes: an electromagnetic wave generating structure and a dielectric constant detection structure; wherein the electromagnetic wave generating structure is suitable for generating electromagnetic waves, and the electromagnetic waves propagate in the mixture of oil to be detected and adsorbent in the second probe; the dielectric constant detection structure is suitable for detecting the dielectric constant value of the mixture of oil to be detected and adsorbent.

[0021] In a possible embodiment of the present invention, the control component includes: a polar component analyzer, adapted to obtain a dielectric constant value detected by the dielectric constant detection structure, and obtain a polar component detection result based on the dielectric constant value.

[0022] In a possible embodiment of the present invention, the hybrid drive component includes: an oil pump, a motor and a stirring blade; wherein the oil pump is connected to the oil output port of the mixing tank and the oil input port of the filter component, the motor is connected to the stirring blade, and the stirring blade is located in the mixing tank; the oil pump and the motor are connected to the control component.

[0023] In a possible embodiment of the present invention, the mixing drive assembly further includes: a vacuum pump connected to the mixing tank and the control assembly, and suitable for performing a vacuum operation on the mixing tank.

[0024] In a possible embodiment of the present invention, the edible oil filtering system further includes: an adsorbent component connected to the mixing component and suitable for providing an adsorbent.

[0025] In a possible embodiment of the present invention, the adsorbent component is connected to the control component and is suitable for providing an amount of adsorbent matching the oil quality detection result under the control of the control component.

[0026] In a possible embodiment of the present invention, the adsorbent component includes: an adsorbent quantitative tank, and a weighing module and a switch module located at the end of the adsorbent quantitative tank; the weighing module is connected to the control component, and is suitable for weighing an amount of adsorbent matching the oil quality detection result under the control of the control component; the switch module is connected to the control component, and is suitable for opening or closing the adsorbent quantitative tank under the control of the control component.

[0027] In a possible embodiment of the present invention, the edible oil filtering system further includes: an oil storage component connected to the filtering component and suitable for storing the oil to be tested that has completed the filtering operation.

[0028] The embodiment of the present invention further provides a control method for an edible oil filtering system, the method comprising:

[0029] In the process of performing a mixing operation on the oil to be tested and the adsorbent, the oil quality testing component is controlled to perform an oil quality testing operation in real time to obtain an oil quality testing result;

[0030] When the oil quality detection result reaches a preset oil quality detection target, the filter component is controlled to perform a filtering operation on the mixture of the oil to be detected and the adsorbent.

[0031] In a possible embodiment of the present invention, the edible oil filtering system further comprises: an adsorbent component, the adsorbent component being connected to the control component and being adapted to provide an amount of adsorbent matching the oil quality detection result under the control of the control component;

[0032] The method further comprises:

[0033] When the oil quality detection result reaches the preset oil quality but does not reach the preset oil quality detection target, the adsorbent component is controlled to provide an amount of adsorbent matching the oil quality detection result, and the mixing component is controlled to continue to perform the mixing operation until the oil quality detection result of the mixing operation reaches the preset oil quality detection target.

[0034] Compared with the prior art, the technical solution of the embodiment of the present invention has the following advantages:

[0035] By applying the solution of the present invention, an oil quality detection component and a control component are provided. The oil quality detection component can perform a real-time oil quality detection operation on the mixture of the oil to be detected and the adsorbent. The control component can control the filtering component to perform a filtering operation on the mixture of the oil to be detected and the adsorbent when the oil quality detection result is less than a preset oil quality detection target. Compared with the existing edible oil filtering system, on the one hand, the oil quality detection can be performed in real time without the need to separately take out the oil filter powder and mix it with the frying oil for sample detection. On the other hand, as long as the oil quality detection result reaches the preset oil quality detection target, the filtering operation is performed. There is no need to wait for the mixture of the oil filter powder and the frying oil to reach a set time before performing the oil quality detection. Therefore, the time required for filtering can be shortened and the filtering efficiency can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 is a structural schematic diagram of an edible oil filtering system in an embodiment of the present invention;

[0037] Figure 2 is a structural schematic diagram of another edible oil filtering system in an embodiment of the present invention;

[0038] Figure 3 It is a structural schematic diagram of an acid value detector in an embodiment of the present invention;

[0039] Figure 4 is a schematic structural diagram of a polar component detector in an embodiment of the present invention;

[0040] Figure 5 is a flow chart of a control method of an edible oil filtering system in an embodiment of the present invention;

[0041] Among them, 10-edible oil filtering system, 11-mixing component, 12-filtering component, 13-oil quality detection component, 14-control component, 15-adsorbent component, 111-mixing tank, 112-oil pump, 113-motor, 114-stirring blade, 115-vacuum pump, 131-acid value detector, 1311-first detection body, 1312-first probe, 1321-second detection body, 1322-second probe, 111a-oil output port, 151-adsorbent quantitative tank, 152-weighing module, 153-switch module, 121-filter, 16-oil storage component, 161-oil storage tank. DETAILED DESCRIPTION

[0042] Existing edible oil filtration systems usually include a mixing tank and a filter. When filtering frying oil, oil filter powder and frying oil are usually placed in a mixing tank, and after mixing for a set time (for example, one hour), the mixture of oil filter powder and frying oil is taken as a sample for testing. After the test is qualified, the mixture of oil filter powder and frying oil is filtered. If the test is unqualified, add oil filter powder to the mixing tank, remix for a set time, and perform sample testing until the test is qualified.

[0043] In practical applications, when testing the mixture of oil filter powder and frying oil, the main tests include acid value test and polar component test of the mixture.

[0044] When testing the acid value of a mixture, a near-infrared analyzer is usually used. Specifically, the sample can be placed in a measuring vessel and directly irradiated with high-intensity, wide-band white light. In this way, the measurement light diffusely reflected from the sample is collected and can reflect the acid value of the sample.

[0045] When testing the polar components of a mixture, an edible oil quality tester is usually used. Specifically, a sample can be placed in a stainless steel container with enough oil to submerge the sensor of the edible oil quality tester. When the oil temperature drops to about 60°C, the sensor of the edible oil quality tester can be immersed in the oil, and the polar component content value can be read through the screen of the edible oil quality tester.

[0046] However, when the existing edible oil filtration system is used to filter the frying oil, the oil filter powder and the frying oil are first filtered when they are mixed for a set time, and the filtered frying oil is taken out as a sample to detect the acid value and polar components of the frying oil. The acid value and polar components of the frying oil are not detected in real time, so the processing time is long, resulting in low filtration efficiency.

[0047] In addition, when the existing edible oil filtration system is used to filter the frying oil, the amount of filter powder added each time is fixed. Once the test fails, a fixed amount of filter powder needs to be added to the mixing tank again, even if the actual amount of filter powder required is less than the amount of filter powder added, which will result in an excessive amount of filter powder added. In addition, when testing the acid value and polar components of the frying oil, it is necessary to take out the filtered frying oil as a sample for testing, so the frying oil will be lost. The excessive amount of filter powder added and the loss of frying oil will undoubtedly increase the filtration cost.

[0048] In view of this problem, the present invention provides an edible oil filtering system, in which an oil quality detection component is provided, and the oil quality detection component can perform real-time oil quality detection operation on the mixture of the oil to be detected and the adsorbent. In this way, when the oil quality detection result is less than the preset oil quality detection target, the control component can control the filtering component to perform the filtering operation on the mixture of the oil to be detected and the adsorbent, without waiting for the mixture of the oil filter powder and the frying oil to reach the set time, and without separately taking out the oil filter powder and mixing it with the frying oil for sample detection, thereby shortening the time required for filtration and improving the filtration efficiency.

[0049] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0050] Reference Figure 1 The embodiment of the present invention provides an edible oil filtering system 10, which may include: a mixing component 11, a filtering component 12, an oil quality detection component 13 and a control component 14. Among them:

[0051] The mixing component 11 is suitable for performing a mixing operation between the oil to be tested and the adsorbent;

[0052] The filtering component 12 is connected to the mixing component 11 and is suitable for filtering the mixture of the oil to be tested and the adsorbent;

[0053] The oil quality detection component 13 is suitable for performing a real-time oil quality detection operation on the mixture of the oil to be detected and the adsorbent;

[0054] The control component 14 is connected to the oil quality detection component 13, and is suitable for obtaining the oil quality detection result of the oil quality detection component 13, and when the oil quality detection result is less than a preset oil quality detection target, controlling the filtering component 12 to perform a filtering operation on the mixture of the oil to be detected and the adsorbent.

[0055] By setting the oil quality detection component 13 to perform real-time oil quality detection operation on the mixture of the oil to be detected and the adsorbent, once the oil quality detection result reaches the preset oil quality detection target, the filtering component 12 can be controlled to perform filtering operation on the mixture of the oil to be detected and the adsorbent, without waiting for the mixing time of the oil to be detected and the adsorbent to reach the preset setting time, thereby shortening the time required for filtering. In addition, since the oil quality detection component 13 can directly perform oil quality detection on the mixture of the oil to be detected and the adsorbent, there is no need to separately take out part of the mixture of the oil to be detected and the adsorbent as a sample to achieve detection, avoiding the increase in filtering time due to sampling, and further shortening the time required for filtering. In addition, it can also avoid the loss of the oil to be detected due to separately taking out part of the mixture of the oil to be detected and the adsorbent as a sample, thereby reducing the filtering cost.

[0056] Figure 2 FIG. 1 is a schematic diagram of the structure of an edible oil filtering system in another embodiment of the present invention. Figure 2 The mixing assembly may include: a mixing tank 111, and a mixing drive assembly connected to the mixing tank 111. The mixing tank 111 is suitable for providing a receiving chamber for accommodating the oil to be detected and the adsorbent. When the oil to be detected and the adsorbent are placed in the receiving chamber, the mixing drive assembly can perform a mixing operation on the oil to be detected and the adsorbent in the receiving chamber. The mixing tank 111 is generally cylindrical.

[0057] In the specific implementation, refer to Figure 2 The hybrid drive assembly may include: an oil pump 112, a motor 113 and a stirring blade 114. The oil pump 112 is connected to the oil output port 111a of the mixing tank 111 and the oil input port of the filter assembly, the motor 113 is connected to the stirring blade 114, and the stirring blade 114 is located in the mixing tank 111; the oil pump 112 and the motor are connected to the control assembly 14.

[0058] In one embodiment, in order to remove the odor in the oil to be detected, the hybrid drive assembly may further include a vacuum pump 115 . The vacuum pump 115 is connected to the mixing tank 111 .

[0059] In a specific implementation, after the edible oil filtration system is powered on, when a mixing operation needs to be performed, the control component 14 sends a control signal to the vacuum pump 115 to control the vacuum pump to evacuate the mixing tank 111. At the same time, the control component 14 can send a control signal to the motor to control the motor to rotate at a set speed so that the oil to be detected and the adsorbent can be fully mixed. The speed of the motor can be matched with the total weight of the oil to be detected and the adsorbent, that is, the control component 14 can control the speed of the motor based on the total weight of the oil to be detected and the adsorbent.

[0060] At this time, the motor can drive the stirring blade 114 to rotate, thereby achieving a mixing operation of the oil to be tested and the adsorbent, so that the adsorbent can adsorb the polar components in the oil to be tested. The greater the weight of the oil to be tested and the adsorbent, the higher the speed of the motor, and the faster the stirring blade rotates.

[0061] When the mixing operation needs to be stopped, the control component 14 can send a control signal to the motor 113 to control the reducer to reduce the speed of the motor 113, so that the stirring blade 114 gradually slows down the rotation until it stops rotating, and the mixing operation is stopped. At the same time, the control component 14 can control the vacuum pump 115 to stop vacuuming.

[0062] In a specific implementation, the oil quality detection component can be used to perform at least one oil quality detection operation, and the number of oil quality detection operations performed is not limited.

[0063] In one embodiment of the present invention, referring to Figure 3 The oil quality detection component may include: an acid value detector 131. The acid value detector 131 is suitable for performing a real-time acid value detection operation on a mixture of the oil to be detected and the adsorbent.

[0064] In a specific implementation, the acid value detector 131 may have a variety of structures, which are not limited here.

[0065] In one embodiment, referring to Figure 2 The acid value detector 131 may include: a first detection body 1311 and a first probe 1312 connected to the first detection body 1311; the first probe 1312 is in contact with the mixture of the oil to be detected and the adsorbent, and the first detection body 1311 is fixed on the mixing tank.

[0066] In a specific implementation, the outer surface of the first detection body 1311 may be provided with a first fixing portion, and the acid value detector 131 is fixed to the mixing tank through the first fixing portion. For example, the first fixing portion may be a thread, and accordingly, a threaded through hole may be provided on the mixing tank, and the first fixing portion is fixed to the mixing tank through the thread and the through hole. When the acid value detector 131 is fixed to the mixing tank, the free end of the first probe 1312 is located above the mixture of the oil to be detected and the adsorbent, thereby realizing acid value detection. Wherein, the position of the acid value detector 131 on the mixing tank 111 can be adjusted according to the mixture of the oil to be detected and the adsorbent, for example, the acid value detector 131 can be fixed to the top of the mixing tank 111.

[0067] In a specific implementation, the first detection body 1311 may generally include: a light source, an optical fiber sensor, a diffraction grating, and a diode detection array. The light source is suitable for irradiating white light to the surface of the mixture of the oil to be detected and the adsorbent through the first probe; after the mixture of the oil to be detected and the adsorbent reflects the white light, it reaches the diffraction grating through the optical fiber sensor, and then is transmitted to the diode detection array after being split by the diffraction grating. In this way, after the mixture of the oil to be detected and the adsorbent diffusely reflects the white light, it can be incident on the optical fiber sensor, and then reach the diffraction grating through the optical fiber sensor, and then be transmitted to the diode detection array after being split by the grating. All spectral signals obtained by the diode detection array are irradiated onto a series of photodiodes arranged according to fixed wavelengths. Each photodiode senses the signal corresponding to a specific wavelength, thereby realizing the synchronous collection of continuous spectral signals.

[0068] At this time, the control component may include: an acid value analyzer. The acid value analyzer is suitable for acquiring the signal sent by the photodiode and obtaining the acid value detection result. The wavelength of the signal sent by the photodiode is related to the acid value of the oil to be detected, so the acid value of the oil to be detected can be determined based on the wavelength of the signal sent by the photodiode.

[0069] In practical applications, the acid value detection target can be preset. For example, the preset acid value detection target can be 0.5 mg / g. At this time, when the acid value detection result is less than 0.5 mg / g, the control component can control the filtering component to perform a filtering operation on the mixture of the oil to be detected and the adsorbent.

[0070] Specifically, refer to Figure 2 The control component can turn off the motor 113 and the vacuum pump 115 in the mixing component when the acid value test result is less than 0.5 mg / g, and start the oil pump 112 when the speed of the stirring blade 114 drops below the preset speed value. The oil pump 112 transports the mixture of the oil to be tested and the adsorbent through the oil output port 111a of the mixing tank 111 to the filtering component for continuous filtration.

[0071] In another embodiment of the present invention, referring to Figure 4 The oil quality detection assembly may include: a polar component detector 132. The polar component detector 132 is in contact with the mixture of the oil to be detected and the adsorbent, and is suitable for performing a real-time polar component detection operation on the mixture of the oil to be detected and the adsorbent.

[0072] In a specific implementation, the polar component detector 132 may have a variety of structures, which are not limited here.

[0073] In one embodiment, the polar component detector 132 may include: a second detection body 1321 and a second probe 1322 connected to the second detection body 1321; the second probe 1322 is in contact with the mixture of the oil to be detected and the adsorbent, and the second detection body 1321 is fixed on the mixing tank.

[0074] In a specific implementation, the end of the second probe 1322 connected to the second detection body 1321 may be provided with a second fixing portion, and the polar component detector 132 is fixed to the mixing tank through the second fixing portion. For example, the second fixing portion may be a thread, and correspondingly, a threaded through hole may be provided on the mixing tank, and the second fixing portion is fixed to the mixing tank through the thread and the through hole. When the polar component detector 132 is fixed to the mixing tank, the second probe 1322 can contact and penetrate into the mixture of the oil to be detected and the adsorbent (such as Figure 2 As shown), polar component detection is achieved. The position of the polar component detector 132 on the mixing tank can be adjusted according to the mixture of the oil to be detected and the adsorbent.

[0075] In a specific implementation, the second detection body 1321 may include: an electromagnetic wave generating structure and a dielectric constant detecting structure. The electromagnetic wave generating structure is suitable for generating electromagnetic waves, and the electromagnetic waves propagate in the mixture of the oil to be detected and the adsorbent in the second probe; the dielectric constant detecting structure is suitable for detecting the dielectric constant value of the mixture of the oil to be detected and the adsorbent.

[0076] Specifically, when electromagnetic waves propagate in a mixture of the oil to be detected and the adsorbent, the molecules and ions in the mixture absorb and scatter the electromagnetic waves, thereby affecting the propagation speed and wavelength of the electromagnetic waves. The dielectric constant detection structure can measure the propagation speed and wavelength of the electromagnetic waves in the mixture, and can calculate the dielectric constant value of the mixture.

[0077] At this time, the control component may include: a polar component analyzer, adapted to obtain the dielectric constant value detected by the dielectric constant detection structure, and obtain a polar component detection result based on the dielectric constant value. Specifically, the polar component analyzer can calculate the content of the polar component in the mixture through the linear relationship between the dielectric constant value and the polar substance.

[0078] In practical applications, the polar component detection target can be preset, for example, the preset polar component detection target can be 2%. At this time, the control component can control the filtering component to perform a filtering operation on the mixture of the oil to be detected and the adsorbent when the polar component detection result is less than 2%.

[0079] Specifically, refer to Figure 2When the polar component detection result is less than 2%, the control component 14 can turn off the motor 113 and the vacuum pump 115 in the mixing component, and when the speed of the stirring blade 114 drops below the preset speed value, start the oil pump 112, and use the oil pump 112 to transport the mixture of the oil to be detected and the adsorbent through the oil output port 111a of the mixing tank 111 to the filtering component for continuous filtration.

[0080] In other embodiments, the oil quality detection component may include an acid value detector and a polar component detector at the same time. In this case, the control component 14 may control the filtering component to perform a filtering operation on the mixture of the oil to be detected and the adsorbent when the acid value detection result is less than a preset acid value detection target and the polar component detection result is less than a preset polar component detection target.

[0081] Furthermore, the oil quality detection component may also include components capable of performing other oil quality detection operations, which are not described one by one here. It is understandable that no matter what oil quality detection operation the oil quality detection component specifically performs, as long as the oil quality detection component detects the oil quality in real time, and the control component controls the system to work in real time based on the oil quality detection result, it is within the scope of protection of the present invention.

[0082] In one embodiment of the present invention, referring to Figure 1 The edible oil filtering system may further include: an adsorbent component 15, which may be connected to the mixing component 11 and is suitable for providing an adsorbent.

[0083] In practical applications, the adsorbent is usually oil filter powder, which is composed of magnesium silicate and silica gel. The content of magnesium silicate and silica gel in the adsorbent, as well as the total amount of the adsorbent, can be adjusted according to the preset oil quality detection target. The adsorbent can absorb the polar components in the oil to be tested, thereby extending the service life of the oil to be tested.

[0084] In one embodiment of the present invention, in order to further reduce the adsorption cost, the adsorbent component 15 can be connected to the control component 14 and is suitable for providing an amount of adsorbent matching the oil quality detection result under the control of the control component 14.

[0085] Specifically, refer to Figure 2 The adsorbent assembly includes: an adsorbent quantitative tank 151, and a weighing module 152 and a switch module 153 located at the end of the adsorbent quantitative tank 151; the weighing module 152 is connected to the control component 14, and is suitable for weighing an amount of adsorbent matching the oil quality detection result under the control of the control component 14; the switch module 153 is connected to the control component 14, and is suitable for opening or closing the adsorbent quantitative tank 151 under the control of the control component 14.

[0086] In a specific implementation, the adsorbent quantitative tank 151 is usually cylindrical. The adsorbent quantitative tank 151 has a containing cavity, and the containing cavity contains adsorbent. When it is necessary to add adsorbent to the mixing tank 11, the control component 14 can control the weighing module 152 to weigh the adsorbent matching the current oil quality detection result, and control the switch module 153 to open the adsorbent quantitative tank 151. The adsorbent in the adsorbent quantitative tank 151 will fall into the mixing tank 11 under the action of gravity and mix with the oil to be detected. After adding the adsorbent, the control component 14 can control the switch module 153 to close the adsorbent quantitative tank 151. Among them, the switch module can be a valve.

[0087] The control component 14 can control the addition of the adsorbent based on the current oil quality test result of the oil to be tested, rather than adding the adsorbent in a fixed amount each time. Specifically, in the initial state, the control component 14 performs an initial test on the oil to be tested and obtains an initial oil quality test result. At this time, the control component 14 can control the weighing module 152 to weigh the adsorbent that matches the initial oil quality test result. After the oil to be tested is mixed with the adsorbent for a certain period of time, the intermediate oil quality test result can be obtained again. If the intermediate oil quality test result is still greater than or equal to the preset oil quality test target, the control component 14 can control the weighing module 152 to weigh the adsorbent that matches the intermediate oil quality test result, without adding the adsorbent that matches the initial oil quality test result, thereby reducing the amount of adsorbent added and further reducing the filtration cost.

[0088] In the specific implementation, refer to Figure 2 The filter assembly may include a filter 121 and a filter screen located in the filter 121. The mixture of the oil to be tested and the adsorbent enters the filter 121 through the oil pump 112 and is filtered by the filter screen, so that the oil to be tested and the adsorbent can be separated, thereby obtaining the oil to be tested that does not contain the adsorbent or has a very low adsorbent content.

[0089] In one embodiment of the present invention, referring to Figure 1 The edible oil filtering system 10 may further include an oil storage component 16, which is connected to the filtering component 12 and is suitable for storing the oil to be tested after the filtering operation is completed.

[0090] Specifically, refer to Figure 2 The oil storage assembly may include an oil storage tank 161 and an automatic valve. The oil storage tank 161 may contain the separated oil to be tested discharged from the filter assembly 12. The automatic valve may open or close the oil storage tank 161.

[0091] In practical applications, the filter 121 is usually cylindrical. An automatic valve is usually provided at the bottom of the filter assembly, a pressure gauge is usually provided at the top, and the filter 121 is also provided with an air compressor. The pressure gauge can monitor the pressure in the filter 121 and feed back to the control assembly 14. The control assembly 14 determines whether to squeeze the oil to be tested separated in the filter 121 into the oil storage tank 161 based on the pressure value in the filter 121. For example, when the pressure in the filter 121 is higher than 6mPa, the control assembly 14 can turn on the air compressor to compress the air, thereby squeezing the residual oil in the filter 121 into the oil storage tank 161, and then open the automatic valve of the filter 121 to discharge the residual adsorbent, and then close the automatic valve to perform the next batch of operations.

[0092] In a specific implementation, the edible oil can be oil for frying or other oils.

[0093] It can be seen from the above content that the edible oil filtering system in the embodiment of the present invention can filter the edible oil with high efficiency, and can also reduce the filtering cost and remove the odor in the edible oil.

[0094] In order to enable those skilled in the art to better understand and implement the present invention, the control method corresponding to the above-mentioned edible oil filtering system is described in detail below.

[0095] Reference Figure 5 The embodiment of the present invention provides a control method for an edible oil filtering system. The edible oil filtering system can refer to the above Figures 1 to 4 The method may include the following steps:

[0096] Step 51, during the process of performing a mixing operation on the oil to be tested and the adsorbent, controlling the oil quality testing component to perform an oil quality testing operation in real time to obtain an oil quality testing result.

[0097] In a specific implementation, the control component can control the oil to be tested in the oil pan to enter the mixing tank in a certain amount. After the oil to be tested in the oil pan enters the mixing tank, the control component can control the oil quality detection component to perform an initial oil quality detection on the oil to be tested, for example, the oil to be tested can be initially tested for acid value to obtain an initial acid value detection result, and the oil to be tested can be tested for polar components to obtain an initial polar component detection result.

[0098] After the initial detection, the control component can control the amount of adsorbent added based on the initial detection result, and after the adsorbent is added, control the mixing drive component to perform a mixing operation on the mixture of the oil to be detected and the adsorbent. During the mixing operation, the oil quality detection component is controlled to perform the oil quality detection operation in real time to obtain the oil quality detection result.

[0099] Step 52, determining whether the current oil quality detection result is less than the corresponding preset oil quality detection target.

[0100] Once the current oil quality detection result is less than the corresponding preset oil quality detection target, step 53 is executed, otherwise step 54 is executed.

[0101] Step 53: Control the filtering component to perform a filtering operation on the mixture of the oil to be detected and the adsorbent.

[0102] That is to say, when the current oil quality test result is less than the corresponding preset oil quality test target, a filtering operation is performed on the mixture of the oil to be tested and the adsorbent to separate the oil to be tested from the adsorbent. The separated oil to be tested can be stored in an oil storage tank for reuse.

[0103] Step 54, controlling the adsorbent assembly to provide an amount of adsorbent that matches the oil quality detection result, and controlling the mixing assembly to continue to perform the mixing operation until the oil quality detection result of the mixing operation reaches the preset oil quality detection target.

[0104] That is to say, when the oil quality detection result is still greater than the corresponding preset oil quality detection target during the mixing operation, adsorbent can be added to the mixing tank again and the mixing operation can be continued until the oil quality detection result of the mixing operation reaches the preset oil quality detection target.

[0105] It should be noted that the control component can obtain multiple oil quality test results during the mixing operation, and only add adsorbent to the mixing tank when each test result of the multiple oil quality test results is greater than the corresponding preset oil quality test target. The multiple oil quality test results can avoid the decision of the control component being affected by insufficient mixing of the adsorbent and the oil to be tested, thereby improving the accuracy of control.

[0106] In actual applications, the control component can control the amount of adsorbent added based on the difference between the current oil quality test result and the preset oil quality test target, rather than adding a fixed amount of adsorbent each time. For example, when the difference between the current oil quality test result and the preset oil quality test target is large, the amount of adsorbent added can be increased, and vice versa. It can be understood that the amount of adsorbent added corresponding to the current oil quality test result should be less than the initial amount of adsorbent added, so as to reduce the adsorption cost.

[0107] In a specific implementation, after executing step 53, that is, controlling the filtering component to perform a filtering operation on the mixture of the oil to be detected and the adsorbent, the oil storage component can also be controlled to store the oil to be detected after the filtering operation is completed, and the adsorbent separated by the filtering component is stored in the filter.

[0108] By adopting the above scheme, not only can the edible oil be filtered efficiently, but also the filtering cost can be reduced.

[0109] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.

Claims

1. An edible oil filtering system, characterized in that: include: A mixing component, suitable for performing a mixing operation of the oil to be tested and the adsorbent; A filtering component connected to the mixing component and adapted to perform a filtering operation on the mixture of the oil to be tested and the adsorbent; An oil quality detection component, adapted to perform a real-time oil quality detection operation on a mixture of the oil to be detected and the adsorbent; And a control component is connected to the oil quality detection component, suitable for obtaining the oil quality detection result of the oil quality detection component, and when the oil quality detection result is less than a preset oil quality detection target, controlling the filtering component to perform a filtering operation on the mixture of the oil to be detected and the adsorbent.

2. The edible oil filtering system according to claim 1, characterized in that: The mixing assembly includes: a mixing tank and a mixing drive assembly connected to the mixing tank.

3. The edible oil filtering system according to claim 2, characterized in that: The oil quality detection component comprises: an acid value detector, which is in contact with the mixture of the oil to be detected and the adsorbent, and is suitable for performing a real-time acid value detection operation on the mixture of the oil to be detected and the adsorbent.

4. The edible oil filtering system according to claim 3, characterized in that: The acid value detector comprises: a first detection body and a first probe connected to the first detection body; the first probe is located in the mixing tank and above the mixture of the oil to be detected and the adsorbent, and the first detection body is fixed on the mixing tank.

5. The edible oil filtering system according to claim 4, characterized in that: The first detection body includes: a light source, an optical fiber sensor, a diffraction grating, a diode detection array and a plurality of photodiodes; the light source irradiates white light to the surface of the mixture of the oil to be detected and the adsorbent through the first probe; after the mixture of the oil to be detected and the adsorbent reflects the white light, it reaches the diffraction grating through the optical fiber sensor, and then is transmitted to the diode detection array after being split by the diffraction grating, and the signal obtained by the diode detection array is irradiated onto the photodiode.

6. The edible oil filtering system according to claim 5, characterized in that: The control component includes: an acid value analyzer, which is suitable for acquiring the signal sent by the photodiode and obtaining the acid value detection result.

7. The edible oil filtering system according to claim 2, characterized in that: The oil quality detection assembly further comprises: a polar component detector, which contacts the mixture of the oil to be detected and the adsorbent and is suitable for performing a real-time polar component detection operation on the mixture of the oil to be detected and the adsorbent.

8. The edible oil filtering system according to claim 7, characterized in that: The polar component detector comprises: a second detection body and a second probe connected to the second detection body; the second probe is in contact with the mixture of the oil to be detected and the adsorbent, and the second detection body is fixed on the mixing tank.

9. The edible oil filtering system according to claim 8, characterized in that: The second detection body includes: an electromagnetic wave generating structure and a dielectric constant detection structure; wherein the electromagnetic wave generating structure is suitable for generating electromagnetic waves, and the electromagnetic waves propagate in the mixture of the oil to be detected and the adsorbent in the second probe; the dielectric constant detection structure is suitable for detecting the dielectric constant value of the mixture of the oil to be detected and the adsorbent.

10. The edible oil filtering system according to claim 9, characterized in that: The control component includes: a polar component analyzer, which is suitable for obtaining the dielectric constant value detected by the dielectric constant detection structure and obtaining a polar component detection result based on the dielectric constant value.

11. The edible oil filtering system according to claim 2, characterized in that: The hybrid drive component includes: an oil pump, a motor and a stirring blade; wherein the oil pump is connected to the oil output port of the mixing tank and the oil input port of the filter component, the motor is connected to the stirring blade, and the stirring blade is located in the mixing tank; the oil pump and the motor are connected to the control component.

12. The edible oil filtering system according to claim 11, characterized in that: The mixing drive assembly further includes: a vacuum pump connected to the mixing tank and the control assembly and suitable for performing a vacuum operation on the mixing tank.

13. The edible oil filtering system according to any one of claims 1 to 12, characterized in that: Also includes: The adsorbent assembly is connected to the mixing assembly and is suitable for providing an adsorbent.

14. The edible oil filtering system according to claim 13, characterized in that: The adsorbent component is connected to the control component and is suitable for providing an amount of adsorbent matching the oil quality detection result under the control of the control component.

15. The edible oil filtering system according to claim 13, characterized in that: The adsorbent component includes: an adsorbent quantitative tank, and a weighing module and a switch module located at the end of the adsorbent quantitative tank; the weighing module is connected to the control component and is suitable for weighing an amount of adsorbent matching the oil quality detection result under the control of the control component; the switch module is connected to the control component and is suitable for opening or closing the adsorbent quantitative tank under the control of the control component.

16. The edible oil filtering system according to claim 12, wherein: Also includes: The oil storage component is connected to the filter component and is suitable for storing the oil to be tested after the filtering operation is completed.

17. A control method for the edible oil filtering system according to any one of claims 1 to 16, characterized in that: include: In the process of performing a mixing operation on the oil to be tested and the adsorbent, the oil quality testing component is controlled to perform an oil quality testing operation in real time to obtain an oil quality testing result; When the oil quality detection result reaches a preset oil quality detection target, the filter component is controlled to perform a filtering operation on the mixture of the oil to be detected and the adsorbent.

18. The control method of the edible oil filtering system according to claim 17, characterized in that: The edible oil filtering system further comprises: an adsorbent component, the adsorbent component being connected to the control component and being adapted to provide an amount of adsorbent matching the oil quality detection result under the control of the control component; The method further comprises: When the oil quality detection result reaches the preset oil quality but does not reach the preset oil quality detection target, the adsorbent component is controlled to provide an amount of adsorbent matching the oil quality detection result, and the mixing component is controlled to continue to perform the mixing operation until the oil quality detection result of the mixing operation reaches the preset oil quality detection target.

Images