Edible crude oil blending system

Abstract

The utility model discloses an edible crude oil blending system which comprises an oil storage tank group, a PLC (Programmable Logic Controller) integrated control box and a first oil blending tank, the oil storage tank group comprises a confluence pipeline and two or more oil storage tanks; the first oil blending tank comprises a first blending kettle and a first wagon balance; a communicating pipeline is arranged at the output end of the oil storage tank and provided with an oil storage valve. The oil storage tank communicates with the confluence pipeline through a communicating pipeline; the first blending kettle is placed above the first wagon balance; the input end of the first blending kettle is provided with a first input pipeline, and the first input pipeline is provided with a first input valve; the first input pipeline is communicated with the confluence pipeline; the PLC integrated control box is electrically connected with the oil storage valve, the first input valve and the first wagon balance. According to the edible crude oil blending system, the PLC integrated control box is adopted, digitization and intellectualization of the blending process are achieved, and the problems that in the existing edible oil blending process, labor intensity is large, efficiency is low, and the error rate is high are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of edible crude oil blending, in particular to an edible crude oil blending system. Background Art

[0002] In the existing oil blending technology, the traditional oil blending methods include manual blending and semi-automatic blending; among them, in the manual blending method, after weighing various ingredients manually, the ingredients are poured into various ingredients in a fixed quantity respectively, and then the blending of various ingredients is realized through manual stirring; while in the semi-automatic blending method, rough control of various ingredients needs to be carried out through pumping. In these traditional oil blending methods, automatic formula management cannot be realized, and the production efficiency is low. Content of the Utility Model

[0003] The purpose of the utility model is to provide an edible crude oil blending system to solve the problem that the above-mentioned edible crude oil blending system cannot realize automatic formula management.

[0004] To achieve the above object, the utility model adopts the following technical solutions:

[0005] The utility model provides an edible crude oil blending system, which comprises an oil storage tank group, a PLC integrated control box, a first blending oil tank and a second blending oil tank;

[0006] The oil storage tank group comprises a confluence pipeline and two or more oil storage tanks; the first blending oil tank comprises a first blending kettle and a first weighing scale;

[0007] An output end of the oil storage tank is provided with a connecting pipeline, and the connecting pipeline is provided with an oil storage valve; the oil storage tank is communicated with the confluence pipeline through the connecting pipeline; the first blending kettle is placed above the first weighing scale; an input end of the first blending kettle is provided with a first input pipeline, and the first input pipeline is provided with a first input valve; the first input pipeline is communicated with the confluence pipeline; the PLC integrated control box is electrically connected with the oil storage valve, the first input valve and the first weighing scale respectively, and is used for controlling the opening or closing of the oil storage valve and the opening or closing of the first input valve according to the quality of the edible crude oil obtained by the first weighing scale;

[0008] The second blending oil tank has the same structure as the first blending oil tank, and comprises a second blending kettle and a second weighing scale; an input end of the second blending kettle is provided with a second output pipeline, and the second output pipeline is provided with a second input valve; the second output pipeline is communicated with the confluence pipeline; the PLC integrated control box is electrically connected with the second input valve and the second weighing scale respectively, and is used for controlling the opening or closing of the second input valve according to the quality and the set quantity of the edible crude oil obtained by the second weighing scale.

[0009] In the edible crude oil blending system, the first blending kettle is provided with a reflux pipe, a first output pipeline and a stirring device;

[0010] The stirring device is arranged inside the first blending kettle; the first output pipeline is communicated with the output end of the first blending kettle; one end of the reflux pipe is communicated with the discharging end of the first blending kettle, and the other end of the reflux pipe is communicated with the top of the first blending kettle for refluxing the blended oil at the bottom of the first blending kettle to the top of the first blending kettle; the stirring device is electrically connected with the PLC integrated control box.

[0011] In the edible crude oil blending system, the reflux pipe is provided with a reflux pump and a reflux overload protection device, and the reflux pump and the reflux overload protection device are respectively electrically connected with the PLC integrated control box.

[0012] In the edible crude oil blending system, the first output pipeline is provided with an output pump, an output overload protection device and a first blended oil output valve; the output pump, the output overload protection device and the first blended oil output valve are respectively electrically connected with the PLC integrated control box.

[0013] In the edible crude oil blending system, a liquid level sensing device is further arranged inside the first blending kettle, the liquid level sensing device is used for detecting the liquid level inside the first blending kettle, and the liquid level sensing device is electrically connected with the PLC integrated control box.

[0014] One technical solution in the present utility model can have the following beneficial effects:

[0015] The edible crude oil blending system adopts a PLC integrated control box, realizing the digitization and intelligentization of the blending process, solving the problems of high labor intensity, low efficiency and high error rate in the current edible oil blending process, and in the PLC system, the formula of the edible oil can be encrypted to avoid the risk of formula leakage. Moreover, the edible crude oil blending system uses the first weighbridge 32 to measure the mass of the first blending kettle 31, avoiding the situation of measurement errors caused by the influence of frequent bubbles in the oil during the flow rate calculation by the flowmeter, and can effectively improve the accuracy of the crude oil ratio. Description of the Drawings

[0016] Figure 1 is a flowchart of the blending method in one embodiment of the present utility model;

[0017] In the drawings: storage oil tank group 1, PLC integrated control box 2, first blending oil tank 3; second blending oil tank 4;

[0018] Confluence pipeline 10; storage oil tank 11; connecting pipeline 12; storage oil valve 13; first blending kettle 31, first weighbridge 32; first input pipeline 33; reflux pipe 34; first output pipeline 35; second blending kettle 41, second weighbridge 42; second output pipeline 43;

[0019] Oil storage output pump 121; first input valve 331; reflux pump 341, reflux overload protection device 342; output pump 351, output overload protection device 352; first blended oil output valve 353; second input valve 431. Detailed implementation mode

[0020] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0021] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features, used to distinguish and describe the features, without order or importance.

[0022] In the description of the present invention, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0023] In the description of the present invention, it should be noted that unless otherwise clearly defined 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0024] Please refer to Figure 1 , the present invention provides an edible crude oil blending system, including an oil storage tank group 1, a PLC integrated control box 2, a first blending tank 3 and a second blending tank 4;

[0025] The oil storage tank group 1 includes a confluence pipeline 10 and two or more oil storage tanks 11; the first blending tank 3 includes a first blending kettle 31 and a first weighbridge 32;

[0026] The output end of the storage oil tank 11 is provided with a connecting pipeline 12, and the connecting pipeline 12 is provided with an oil storage valve 13; the storage oil tank 11 is communicated with the confluence pipeline 10 through the connecting pipeline 12; the first blending kettle 31 is placed above the first weighing scale 32; the input end of the first blending kettle 31 is provided with a first input pipeline 33, and the first input pipeline 33 is provided with a first input valve 331; the first input pipeline 33 is communicated with the confluence pipeline 10; the PLC integrated control box 2 is electrically connected with the oil storage valve 13, the first input valve 331 and the first weighing scale 32 respectively, and is used for controlling the opening or closing of the oil storage valve 13 and the opening or closing of the first input valve 331 according to the quality of the edible crude oil obtained by the first weighing scale 32;

[0027] The structure of the second oil blending tank 4 is the same as that of the first oil blending tank 3, including a second blending kettle 41 and a second weighing scale 42; the input end of the second blending kettle 41 is provided with a second output pipeline 43, and the second output pipeline 43 is provided with a second input valve 431; the second output pipeline 43 is communicated with the confluence pipeline 10; the PLC integrated control box 2 is electrically connected with the second input valve 431 and the second weighing scale 42 respectively, and is used for controlling the opening or closing of the second input valve 431 according to the quality and the set amount of the edible crude oil obtained by the second weighing scale 42.

[0028] The edible crude oil blending system adopts a PLC integrated control box, realizes the digitization and intelligentization of the blending process, solves the problems of large labor intensity, low efficiency and high error rate in the current edible oil blending process, and in the PLC system, the formula of the edible oil can be encrypted to avoid the risk of formula leakage. Moreover, the edible crude oil blending system uses the first weighing scale 32 to measure the quality of the first blending kettle 31, avoiding the situation of measurement errors caused by the influence of air bubbles in the oil during the flow calculation of the flowmeter, and can effectively improve the accuracy of the crude oil ratio.

[0029] The edible crude oil blending system further includes a second oil blending tank 4. When the first oil blending tank 3 outputs blended oil, the PLC integrated control box 2 can control the input of the edible crude oil into the second oil blending tank 4 according to the ratio, and during the time when the first oil blending tank 3 outputs blended oil, the next blending of the edible crude oil is carried out to improve the production efficiency.

[0030] An oil storage output pump 121 is further arranged in the connecting pipeline 12, and the oil storage output pump 121 is electrically connected with the PLC integrated control box 2. The PLC integrated control box 2 outputs the oil in the first blending kettle 31 through the oil storage output pump 121.

[0031] Specifically, the first blending kettle 31 is provided with a reflux pipe 34, a first output pipeline 35 and a stirring device;

[0032] The stirring device is arranged inside the first blending kettle 31; the first output pipeline 35 is communicated with the output end of the first blending kettle 31; one end of the return pipe 34 is communicated with the discharging end of the first blending kettle 31, and the other end of the return pipe 34 is communicated with the top of the first blending kettle 31 for returning the blended oil at the bottom of the first blending kettle 31 to the top of the first blending kettle 31; the stirring device is electrically connected with the PLC integrated control box 2.

[0033] The stirring device is used for stirring the edible oil in the first blending kettle 31 to fully mix the crude edible oil. The return pipe 34 can return the blended oil at the bottom of the first blending kettle 31 to the top of the first blending kettle 31, and cooperate with the stirring device to further fully mix the crude edible oil. The first output pipeline 35 is used for outputting the blended oil.

[0034] Specifically, the return pipe 34 is provided with a return pump 341 and a return overload protection device 342, and the return pump 341 and the return overload protection device 342 are respectively electrically connected with the PLC integrated control box 2.

[0035] Specifically, the first output pipeline 35 is provided with an output pump 351, an output overload protection device 352 and a first blended oil output valve 353; the output pump 351, the output overload protection device 352 and the first blended oil output valve 353 are respectively electrically connected with the PLC integrated control box 2.

[0036] The first output pipeline 35 is communicated with an external filling platform, and the PLC integrated control box 2 controls the output of the blended oil through the output pump 351 and the first blended oil output valve 353. The return overload protection device 342 and the output overload protection device 352 can refer to existing overload protection devices. If the motor resistance is too large and the operating current continuously exceeds 1.5 times the rated operating current, the low-voltage air circuit breaker of the return overload protection device 342 or the output overload protection device 352 will trip, and the tripping signal will be input into the PLC integrated control box 2. The equipment will stop running and send out an alarm message. After troubleshooting, the oil blending can continue from the state when the tripping stopped. By adopting the above structure, the function of the crude edible oil blending system can be protected, and the situation of overload of the output pump 351 or the return pump 341 can be avoided.

[0037] Specifically, a liquid level sensing device is further arranged inside the first blending kettle 31. The liquid level sensing device is used for detecting the liquid level inside the first blending kettle 31, and the liquid level sensing device is electrically connected with the PLC integrated control box 2.

[0038] With the above structure, the liquid level in the first blending kettle 31 is detected by the liquid level sensing device to prevent the resistance of the stirring device from being too large due to the too high liquid level in the blending kettle, resulting in an overload situation; or to prevent the equipment from idling due to the too low liquid level in the blending kettle; the liquid level situation in the first blending kettle 31 is sent to the PLC integrated control box 2 in real time for facilitating the monitoring of the first blending kettle 31.

[0039] The present utility model also provides an edible crude oil blending method, which is applied to an edible crude oil blending system. The edible crude oil blending system includes n crude oil tanks and m blending tanks, where n≥3 and m≥2. The edible crude oil blending method includes the following steps:

[0040] Known information setting step: setting the types of crude oil and mixing ratios required for k types of blended oils, where k≥3, and one blended oil corresponds to a formula number, and the formula numbers are 1#, …… k#; setting the types of edible crude oil stored in each crude oil tank, and the numbers are oil 1, oil 2 …… oil n;

[0041] Advance quantity obtaining step: obtaining the advance quantity M of the crude oil in each crude oil tank to each blending tank 提 ;

[0042] Production demand obtaining step: obtaining the target formula number and the total weight G to be blended for the target formula number;

[0043] Calculation step: calculating the required output demand weight M of the edible crude oil in each crude oil tank according to the target formula number, the total weight G and the working state of the current blending tank 需 and designating one of the blending tanks as the current blending tank to obtain M 需1 、M 需2 ……M 需n respectively judge whether M 需1 、M 需2 ……M 需n is zero, determine the corresponding crude oil tank with a non-zero value as the crude oil tank to be started, and calculate the predicted weight M of the current blending tank according to the demand weight M 需 and the advance quantity M 提 to obtain M 预测 respectively, obtain M 预测1 、M 预测2 ……M 预测n ;

[0044] Monitoring and judgment step: obtaining the current weight M of the current blending tank in real time 实时 ; sequentially judge the size of the current weight M 实时 and the predicted weight M 预测 in ascending order of the numbers. When the current weight M 实时 is equal to the predicted weight M 预测nWhen it is time, the crude oil tank corresponding to the oil n is controlled to close, and the next crude oil tank to be started is controlled to start;

[0045] When all the crude oil tanks to be started are closed, the current blending tank is controlled to stir and reflux, and stops after reaching the predetermined time, and finally the target edible blended oil is obtained.

[0046] The advance quantity M of the edible crude oil is introduced in the described edible crude oil blending method 提 , the viscosities of different types of edible crude oils are different, and the flow rates are also different. According to the advance quantity M of the edible crude oil 提 , the input of the edible crude oil is stopped in advance. When waiting for the input edible crude oil to flow into the blending kettle, another type of edible crude oil is input, which can save the time for inputting the edible crude oil, improve the efficiency, and moreover, can accurately control the input quantity of the edible crude oil, avoiding the problem that the edible crude oil has exceeded the input quantity before stopping the input due to the slow flow rate, and can effectively improve the accuracy of the crude oil ratio.

[0047] Among the types of crude oil and mixing ratios required for k types of blended oils, let the blending parameter of the edible crude oil be X, and the mixing ratio be X 1 :X 2 :X 3 ……X n ;

[0048] In the step of obtaining the advance quantity: Obtain the advance quantity M of the crude oil in each crude oil tank to each blending tank 提 , let the numbers of the blending tanks be tank a, tank b, tank c... tank n, and obtain M 提a , M 提b ……M 提n ;

[0049] In the described calculation step, M 需n =G*X n , M 预测n =M 需1 +M 需2 +M 需3 +…+M 需n -M 提’ , M 提’ is the advance quantity M of the crude oil in the crude oil tank whose switch needs to be controlled currently to each blending tank 提 .

[0050] In a specific embodiment, assuming that when 20 kg of oil 1, 15 kg of oil 2, and 30 kg of oil 3 need to be mixed, the advance quantity M 提1-a of the current oil 1 to blending tank a is 2 kg, the advance quantity M 2-a of oil 2 to blending tank a is 1 kg, and the advance quantity M 3-a of oil 3 to blending tank a is 1 kg; the predicted weight M 预测1is 19 kg, and the predicted weight M of oil 2 to blending tank a 预测2 is 34 kg, and the predicted weight M of oil 3 to blending tank a 预测3 is 64 kg.

[0051] Specifically, the step of obtaining the lead is as follows:

[0052] Obtain the number n of the edible crude oil for which the lead needs to be measured, designate one of the blending tanks as the test blending tank, and obtain the set weight M of oil n 设定 ;

[0053] Record the initial weight M of the test blending tank 初 ;

[0054] Control the opening of the crude oil tank corresponding to oil n to allow oil n to enter the test blending tank, and obtain the actual weight M of the test blending tank in real time 实际 ;

[0055] Judge the actual weight M 实际 and the set weight M 设定 When the actual weight M 实际 is equal to the set weight M 设定 , then control the closing of the crude oil tank corresponding to oil n;

[0056] Wait for the buffer time, and obtain the final weight M of the test blending tank max ; According to the lead calculation formula M 提n = M max - M 设定 - M 初 , obtain the lead M of the edible crude oil 提 .

[0057] Through the above steps, by pre-measuring the weight of the edible crude oil that still flows out of the pipeline after the actual weight M 实际 of the input edible crude oil reaches the set weight M 设定 of the edible crude oil, it is applied to the process of inputting the edible crude oil, and the set lead M 提 is used to accurately control the input amount of the edible crude oil. In a specific embodiment of the present invention, the buffer time is 15 s.

[0058] The lead M of each edible crude oil 提 is obtained through testing on the equipment. The pipeline lengths and pipeline inner diameters of different equipment are different. When replacing different equipment, it is necessary to re-test. In addition, when replacing the type of edible crude oil, it is necessary to re-test on this equipment.

[0059] In a specific embodiment of the present utility model, there are a total of 5 crude oil tanks. In the step of obtaining the lead, the 5 crude oil tanks are tested for the lead together and obtained according to the numbers. When obtaining the lead of Oil 1, the initial weight M of the blending tank is tested 初 to test the original weight of the blending tank; when obtaining the lead of Oil 2, the initial weight M of the blending tank is tested 初 to test the original weight of the blending tank and the final weight M of Oil 1 max sum. Similarly, when obtaining the lead of Oil 3, the initial weight M of the blending tank is tested 初 to test the original weight of the blending tank plus the final weight M of Oil 1 max and the final weight M of Oil 2 max sum. When obtaining the lead of Oil 4, the initial weight M of the blending tank is tested 初 including testing the original weight of the blending tank plus the final weight M of Oil 1 max , the final weight M of Oil 2 max and the final weight M of Oil 3 max sum. When obtaining the lead of Oil 5, the initial weight M of the blending tank is tested 初 including testing the original weight of the blending tank plus the final weight M of Oil 1 max , the final weight M of Oil 2 max , the final weight M of Oil 3 max and the final weight M of Oil 4 max sum.

[0060] Preferably, after the step of setting the known information, a formula verification step is further included; the formula verification step includes:

[0061] Read the proportioning parameters X of each edible crude oil, and let the total proportion of the edible crude oil be X 总 , X 总 =X 1 +X 2 +X 3 +……X n ;

[0062] Judge whether the total proportion X of the edible crude oil 总 is 100%. When the total proportion X of the edible crude oil 总 is 100%, perform the step of obtaining the lead; when the total proportion X of the edible crude oil 总 is not 100%, an alarm is issued.

[0063] By adopting the above steps, it is possible to detect whether the formula of the edible crude oil conforms to common sense, avoid input errors in the formula of the edible crude oil, and cause problems that require the emptying of the blending kettle. Emptying the blending kettle takes a very long time. Therefore, it is possible to avoid wasting time due to improper operation.

[0064] Preferably, it further includes a known information encryption step and a known information modification step;

[0065] The known information encryption step is to set an encryption password after the known information setting step;

[0066] The known information modification step is that when it is necessary to view or modify the types and mixing ratios of edible crude oils required for k types of blended oils, obtain decryption information, and determine whether the decryption information is the same as the encryption password. If they are the same, viewing and / or modifying the known information is allowed; if they are not the same, viewing and / or modifying is not allowed.

[0067] Through the known information encryption step and the known information modification step, different blended oil formulas can be recorded, avoiding the risks of formula leakage and malicious modification. When it is necessary to replace the blended oil formula, directly modify the mixing ratio parameters of the edible crude oil through the known information modification step.

[0068] Specifically, in the known information setting step, the setting of the zero weight Z of k types of blended oils is also included, corresponding to Z 1 、Z 2 ……Z k ;

[0069] The edible crude oil blending method further includes an output judgment step: controlling the output of the target edible blended oil, obtaining the remaining weight of the current output blending tank in real time, and determining whether the formula number to be blended in the next round of the current output blending tank is the same as the formula number being currently blended. When they are the same, determine whether the remaining weight reaches the corresponding zero weight. When the remaining weight is equal to the zero weight, abort the output of the current output blending tank and start the next round of blending.

[0070] During the process of draining oil from the blending kettle, usually a small amount of blended oil drains very slowly. Without this parameter, waiting for the weight measured by the weighbridge to naturally reach "0" requires a very long time, reducing production efficiency. To improve production efficiency, when producing oils of the same formula, the emptying waiting time can be reasonably reduced. Therefore, the zero weight Z of the blended oil 0 , when the weight measured by the weighbridge reaches below the set zero weight, it can be considered that the oil tank is emptied, so as to carry out the next oil blending production. Since the oil mixing ratios of oils of the same formula are the same, the remaining blended oil does not affect the blending ratio of the next batch of blended oil.

[0071] In a specific embodiment of the present invention, the zero weight Z is set 0If the weight of the blending kettle is 3kg, then when the blending tank outputs the blending oil, the scale detects that the weight of the blending kettle is less than 3kg, and it is considered that the current blending oil in the blending kettle has been emptied, and the next oil blending can be carried out. The process of waiting for the weight of the blending kettle to return to zero from 3kg is omitted, the problem of the interval time between two oil blendings becoming longer is avoided, and work efficiency is improved. Moreover, in this process, if the output pump 351 needs to continue working, it is basically idling, which increases the wear of the output pump 351. Therefore, the above steps can also reduce the loss of equipment.

[0072] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementations of the present invention without creative work, and these equivalent variations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. An edible crude oil blending system, characterized in that: It includes oil storage tank group, PLC integrated control box, first oil transfer tank and second oil transfer tank; The oil storage tank group includes a confluence pipe and two or more oil storage tanks; the first oil blending tank includes a first blending kettle and a first weighbridge; The output end of the oil storage tank is provided with a connecting pipe, and the connecting pipe is provided with an oil storage valve; the oil storage tank is connected with the confluence pipe through the connecting pipe; the first blending kettle is placed above the first scale; the input end of the first blending kettle is provided with a first input pipe, and the first input pipe is provided with a first input valve; the first input pipe is connected with the confluence pipe; the PLC integrated control box is electrically connected with the oil storage valve, the first input valve and the first scale respectively, and is used to control the opening or closing of the oil storage valve and the opening or closing of the first input valve according to the quality of the edible crude oil obtained by the first scale; The structure of the second oil blending tank is the same as that of the first oil blending tank, including a second blending kettle and a second scale; the input end of the second blending kettle is provided with a second output pipeline, and the second output pipeline is provided with a second input valve; the second output pipeline is connected to the confluence pipeline; the PLC integrated control box is electrically connected to the second input valve and the second scale, respectively, and is used to set the amount of edible crude oil according to the mass obtained by the second scale, and to control the opening or closing of the second input valve.

2. The edible crude oil blending system according to claim 1, characterized in that: The first blending kettle is provided with a reflux pipe, a first output pipeline and a stirring device; The stirring device is arranged in the first blending kettle; the first output pipeline is connected to the output end of the first blending kettle; one end of the reflux pipe is connected to the discharge end of the first blending kettle, and the other end of the reflux pipe is connected to the top of the first blending kettle, so as to reflux the blending oil at the bottom of the first blending kettle to the top of the first blending kettle; The stirring device is electrically connected to the PLC integrated control box.

3. The edible crude oil blending system according to claim 2, characterized in that: The reflux pipe is provided with a reflux pump and a reflux overload protection device, and the reflux pump and the reflux overload protection device are electrically connected to the PLC integrated control box respectively.

4. The edible crude oil blending system according to claim 2, characterized in that: The first output pipeline is provided with an output pump, an output overload protection device and a first blending oil output valve; the output pump, the output overload protection device and the first blending oil output valve are electrically connected to the PLC integrated control box respectively.

5. The edible crude oil blending system according to claim 1, characterized in that: A liquid level sensing device is also provided in the first blending kettle, and the liquid level sensing device is used to detect the liquid level in the first blending kettle. The liquid level sensing device is electrically connected to the PLC integrated control box.

Images