Grease preparation device and method capable of reducing oil smoke

Abstract

The invention relates to the technical field of grease processing, in particular to a grease preparation device and method capable of reducing oil smoke. The device comprises a crude oil preparation device and a crude oil refining device, the crude oil refining device comprises a neutralization tank, a decolorization device and a deodorization device, the neutralization tank comprises a first reaction part and a second reaction part, the first reaction part is provided with a first inlet and a first outlet, the first inlet is provided with a first flow sensor, and the first outlet is provided with a second flow sensor. A vacuum port and a feeding port are formed in the side wall of the first reaction part, the vacuum port is provided with a vacuum valve, the feeding port is provided with a feeding valve, the vacuum port is communicated with a vacuum pump, and the feeding port is communicated with an alkaline material storage tank; crude oil is decompressed through the first reaction part to form bubbles, the bubbles react with an alkaline material in the alkaline material storage tank, and the crude oil flowing out of the first reaction part flows into the second reaction part to be pressurized; and the phosphorus content in the crude oil is reduced, so that the oil smoke generated when the diglyceride oil is used is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of oil processing, and in particular to an oil preparation device and method capable of reducing oil smoke. Background Art

[0002] Edible vegetable oil is an essential condiment in daily life, but the edible vegetable oil currently on the market generally produces a lot of oil smoke; the composition of edible vegetable oil smoke is relatively complex. Studies have shown that there are at least 300 components detected in it, mainly fatty acids, alkanes, alkenes, aldehydes, ketones, alcohols, esters and other aromatic compounds and heterocyclic compounds, among which there are many components that are harmful to human health.

[0003] The traditional edible vegetable oil preparation process includes the preparation and refining of crude oil, and the refining of crude oil includes degumming, neutralization, dewaxing (winterization), decolorization and deodorization processes; among them, the degumming process is to remove the phospholipids and viscous substances dissolved in the oil under high or low temperature conditions, so that they can be dissolved in the water phase and removed; the neutralization process is to add sodium hydroxide to the degummed oil to make the free fatty acids, phospholipids and most of the pigments in the oil form saponification products and centrifuge them to achieve the purpose of deacidification; the dewaxing and winterization processes are mainly to remove a small amount of solid matter in the oil; the main purpose of the decolorization process is to remove pigments, gums, trace saponification products and other impurities in the oil; the purpose of the deodorization process is to remove odorous substances in the oil, usually through multiple steps of gas analysis, heating, deacidification, deodorization and oil cooling processes, using intermittent, semi-continuous and continuous deodorization methods.

[0004] Among them, the phospholipids reduced during the neutralization process are an important factor affecting the amount of oil smoke in edible vegetable oil. However, in the existing edible vegetable oil preparation process, it is difficult to remove the crude oil with low phosphorus content, and it is difficult to reduce the phosphorus content of the neutralized oil to a very low level.

[0005] Therefore, there is an urgent need to provide a grease preparation device and method that can reduce oil smoke, which can reduce the phosphorus content in crude oil compared to the existing technology, thereby reducing oil smoke. Summary of the Invention

[0006] The present invention solves the technical problems existing in the prior art and provides a grease preparation device and method that can reduce oil smoke.

[0007] To achieve the above object, the technical solution adopted by the present invention is as follows: A grease preparation device capable of reducing oil smoke comprises a crude oil preparation device and a crude oil refining device connected in sequence, the crude oil refining device comprising a neutralization device, a decolorization device, a deodorization device, and a controller connected in sequence, the neutralization device comprising a neutralization tank, the neutralization tank comprising a first reaction unit and a second reaction unit, the first reaction unit being provided with a first inlet and a first outlet, a first flow sensor being provided at the first inlet, and a second flow sensor being provided at the first outlet, a vacuum port and a feed port being provided on a side wall of the first reaction unit, the vacuum port being provided with a vacuum valve, the feed port being provided with a feed valve, the vacuum port being connected to a vacuum pump, and the feed port being connected to an alkaline material storage tank; the first flow sensor, the second flow sensor, the vacuum valve, and the feed valve being all electrically connected to the controller; the crude oil passing through the first reaction unit is decompressed to form bubbles, and the bubbles react with the alkaline material in the alkaline material storage tank, and the crude oil flowing out of the first reaction unit flows into the second reaction unit for pressurization.

[0008] Furthermore, a set of opposite side walls of the first reaction part are slidably connected to a sliding plate, a plurality of stirring rods are provided on the sliding plate, and a plurality of stirring blades are movably connected to the stirring rods.

[0009] Furthermore, the side wall of the neutralization tank is provided with a plurality of cylinders, and at least two cylinders are provided on each sliding plate, and the cylinders are used to drive the sliding plates to slide.

[0010] Furthermore, the second reaction part is provided with a second inlet and a second outlet, the second inlet is connected to the first outlet, a filter plate is provided in the second reaction part, and the filter plate is provided close to the second outlet; the first inlet is provided with a first valve, the first outlet and the second inlet are provided with a second valve, and the second outlet is provided with a third valve.

[0011] A method for preparing oil that can reduce cooking fume comprises the following steps: S1, using crude oil preparation equipment to prepare crude oil; S2, using crude oil refining equipment, the crude oil prepared in step S1 is refined, specifically comprising the following steps: S21, transporting the crude oil prepared in step S1 to a neutralization device to reduce the phosphorus content in the crude oil; S22, transporting the crude oil treated in step S21 to a decolorization device for decolorization; S23, transporting the crude oil treated in step S22 to a deodorization device for deodorization to obtain diglyceride oil.

[0012] Furthermore, S21 specifically includes the following steps: S211, opening the first valve, closing the second valve and the third valve, transporting the crude oil to the first reaction part, decompressing the crude oil to form bubbles, and transporting the alkaline material to the first reaction part; S212: When the first valve is open for a set time, the first valve is closed, the second valve is opened, and the third valve is closed. The crude oil in the first reaction part enters the second reaction part and is pressurized. The controller controls the cylinder to move, causing the cylinder to drive the sliding plate to reciprocate. S213: The second flow sensor detects a second flow value. When the second flow value is 0, the second valve is closed, and the third valve and the first valve are opened. The crude oil in the second reaction section is dephosphorized and transported to the decolorization equipment. The new crude oil in the first reaction section is dephosphorized.

[0013] Furthermore, the first flow sensor detects a first flow value, and the controller controls the opening of the vacuum valve and the opening of the feed valve according to the first flow value. The specific method is as follows: when When the vacuum valve opening is controlled , control the opening of the feed valve to ; when When the vacuum valve opening is controlled , control the opening of the feed valve to ; when When the vacuum valve opening is controlled , control the opening of the feed valve to ; In the above formula, Indicates the first flow value, Indicates the maximum flow rate of liquid that can pass through the first inlet, Indicates the maximum flow rate of liquid that can pass through the first outlet, Greater than .

[0014] Furthermore, in step S211, the maximum first flow value detected by the first flow sensor is set as the first maximum flow value, and the minimum first flow value detected is set as the first minimum flow value; in step S212, the controller controls the speed of the cylinder movement according to the second flow value, the first maximum flow value and the first minimum flow value.

[0015] Furthermore, in step S212, the controller dynamically adjusts the movement speed of the cylinder according to the following formula: ; In the above formula, Indicates the movement speed of the cylinder, Indicates the second flow value, Indicates the first maximum flow value, Indicates the first minimum flow value.

[0016] Furthermore, in step S212, an initial time and an end time are set for the first flow sensor, and multiple sampling times are set between the initial test time and the end time. The first flow value corresponding to each sampling time is recorded as the sampling flow value; the set time is calculated according to the following formula: ; ; In the above formula, Indicates the set time. represents the total number of sampling times, Indicates the input crude oil amount, Indicates the i-th sampling flow value, i ranges from 1 to I, Indicates the initial time, Indicates the end time.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The invention refines the prepared crude oil, first decompresses the crude oil to form bubbles during a neutralization process, reacts with an alkaline material, and then pressurizes the crude oil, thereby more effectively removing phosphorus content from the crude oil. In the operations of decompressing the crude oil and adding the alkaline material, a controller dynamically adjusts the openings of a vacuum valve and a feed valve according to a first flow value, and adjusts the movement speed of a cylinder according to a second flow value during the process of the crude oil in a first reaction part flowing into a second reaction part, thereby ensuring that the crude oil after decompression in the first reaction part is decompressed and before flowing into the second reaction part for pressurization after the second valve is opened, the movement of the cylinder ensures a decompression effect, further ensuring efficiency in removing phosphorus content from the crude oil, and thus ensuring that the amount of oil smoke of the obtained diglyceride oil is reduced when it is reused. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the neutralization tank of the device of the present invention.

[0019] Figure 2 It is a flow chart of the method of the present invention.

[0020] Description of reference numerals: 1. Neutralization tank; 11. First reaction section; 12. Second reaction section; 13. First inlet; 14. First outlet; 15. Second inlet; 16. Second outlet; 17. Vacuum port; 18. Feed port; 2. Cylinder; 3. Sliding plate; 4. Stirring rod; 5. Stirring blade; 6. Filter plate; 7. Vacuum pump; 8. Alkaline material storage tank. DETAILED DESCRIPTION

[0021] The technical solution of the present invention will be clearly described below in conjunction with the accompanying drawings. Obviously, the described embodiments are not all embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. It should be noted that the orientation or position relationship indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", etc. is based on the orientation or position relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description. It does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0022] like Figure 1 As shown, the present invention provides a grease preparation device capable of reducing oil smoke, comprising a crude oil preparation device and a crude oil refining device, wherein the crude oil preparation device is connected to the crude oil refining device, the crude oil preparation device is fed with a plurality of raw and auxiliary materials for preparing diglyceride oil to generate crude oil, and the crude oil is fed into the crude oil refining device for refining the crude oil.

[0023] The crude oil preparation equipment includes a catalytic reactor and a molecular distillation equipment connected in sequence. Multiple raw and auxiliary materials are put into the catalytic reactor according to the set weight and stirred to achieve catalytic reaction. Then, the materials after the reaction in the catalytic reactor are transferred to the molecular distillation equipment for distillation operation, thereby completing the preparation of crude oil.

[0024] The crude oil refining equipment includes a neutralization device, a decolorization device, a deodorization device and a controller connected in sequence. The neutralization device is connected to the molecular distillation device. The catalytic reactor, molecular distillation equipment, decolorization equipment and deodorization equipment all use existing equipment, and the specific structure is not repeated here.

[0025] The neutralization equipment includes a neutralization tank 1, which includes a first reaction part 11 and a second reaction part 12. The first reaction part 11 has a first inlet 13 at the upper end, a first outlet 14 at the lower end, a second inlet 15 at the upper end of the second reaction part 12, and a second outlet 16 at the lower end of the second reaction part 12. The second inlet 15 of the second reaction part 12 is connected to the first outlet 14 of the first reaction part 11; the inner side wall of the first reaction part 11 is provided with a vacuum port 17 and a feed port 18, a vacuum valve is provided at the vacuum port 17, and a feed valve is provided at the feed port 18. The vacuum port 17 is connected to the vacuum pump 7 through a pipeline, and the feed port 18 is connected to the alkaline material storage tank 8 through a pipeline. A sliding plate 3 is slidably connected to a set of opposite side walls inside the first reaction section 11. Each sliding plate 3 is driven by at least two cylinders 2. The cylinders 2 are fixedly connected to the outer wall of the neutralization tank 1. The protruding ends of the cylinders 2 pass through the side walls of the neutralization tank 1 and are fixedly connected to the side walls of the sliding plates 3. The side walls of the sliding plates 3 away from the protruding ends of the cylinders 2 are fixedly connected to a plurality of stirring rods 4. The axes of the plurality of stirring rods 4 are perpendicularly arranged to the side walls of the sliding plates 3 connected to the stirring rods 4. Each stirring rod 4 is provided with a plurality of stirring blades 5 spaced apart along its axis. The stirring blades 5 are movably connected to the stirring rods 4. When the cylinders 2 drive the sliding plates 3 to move, the stirring rods 4 are driven to move in the horizontal direction, thereby causing the stirring blades 5 to swing. The side walls of the neutralization tank 1 where the vacuum port 17 and the feed port 18 are arranged are different from the side walls where the sliding plates 3 are arranged.

[0026] A filter plate 6 is disposed in the second reaction portion 12 , and a plurality of filter holes are provided on the filter plate 6 ; the filter plate 6 is disposed close to the second outlet 16 .

[0027] The first inlet 13 is provided with a first valve and a first flow sensor, the first outlet 14 and the second inlet 15 are provided with a second valve and a second flow sensor, and the second outlet 16 is provided with a third valve; the first flow sensor, the second flow sensor, the vacuum valve, the feed valve, the first valve, the second valve, the third valve, and the cylinder 2 are all electrically connected to the controller; the crude oil enters the first reaction part 11 through the first inlet 13, is depressurized in the first reaction part 11 to form bubbles, and reacts with the alkaline material, and the crude oil flowing out of the first reaction part 11 flows into the second reaction part 12 for pressurization.

[0028] like Figure 2 As shown, the present invention also provides a method for preparing oil that can reduce oil smoke, comprising the following steps: S1, using crude oil preparation equipment to prepare crude oil; specifically comprising the following steps: S11. Weigh each raw material and auxiliary material according to the set weight of each raw material and auxiliary material. The raw materials and auxiliary materials include lipase, glycerin, water and edible vegetable oil. The edible vegetable oil can be rapeseed oil, camellia oil, peanut oil, linseed oil, etc.

[0029] S12, putting the weighed raw and auxiliary materials into the catalytic reaction kettle, and stirring to carry out catalytic reaction.

[0030] S13. The material after the catalytic reaction is put into a molecular distillation device, parameters are set according to corresponding process regulations, and the molecular distillation device is started to prepare crude oil.

[0031] S2, using crude oil refining equipment to refine the crude oil prepared in step S1 to reduce the amount of oil smoke. Specifically comprising the following steps: S21, transporting the crude oil prepared in step S1 to a neutralization device to reduce the phosphorus content in the crude oil. Specifically comprising the following steps: S211. Open the first valve, close the second valve and the third valve, transport the crude oil into the first reaction part, reduce the pressure, form bubbles in the crude oil, and transport the alkaline material into the first reaction part; the first flow sensor detects the first flow value, and the controller controls the opening of the vacuum valve and the feed valve according to the first flow value to ensure the best removal efficiency of the phosphorus content in the crude oil in the first reaction part.

[0032] The specific method for the controller to control the opening of the vacuum valve and the feed valve according to the first flow value is: when When the vacuum valve opening is controlled , control the opening of the feed valve to ; when When the vacuum valve opening is controlled , control the opening of the feed valve to ; when When the vacuum valve opening is controlled , control the opening of the feed valve to ; In the above formula, Indicates the first flow value, Indicates the maximum flow rate of liquid that can pass through the first inlet, Indicates the maximum flow rate of liquid that can pass through the first outlet, Greater than .

[0033] S212, when the first valve is open for a set time, the first valve is closed, the second valve is opened, and the third valve is kept closed. The crude oil in the first reaction part enters the second reaction part and is pressurized. The second flow sensor detects the second flow value. In step S211, the maximum first flow value detected by the first flow sensor is set as the first maximum flow value, and the minimum first flow value detected by the first flow sensor is set as the first minimum flow value. The controller controls the speed of the cylinder movement according to the second flow value, the first maximum flow value, and the first minimum flow value. The controller controls the cylinder to reciprocate. Figure 1 The position shown is the initial position of the cylinder. The maximum distance the cylinder can move in one stroke is the thickness of the sliding plate.

[0034] The controller controls the speed of the cylinder movement according to the second flow value, the first maximum flow value, and the first minimum flow value. The specific method is as follows: The controller dynamically adjusts the cylinder's movement speed through the following formula: ; In the above formula, Indicates the movement speed of the cylinder, Indicates the second flow value, Indicates the first maximum flow value, Indicates the first minimum flow value.

[0035] The time when the first flow sensor is just not 0 is recorded as the initial time, and the time when it is just 0 is recorded as the end time. Multiple sampling times are set between the initial test time and the end time, and the first flow value corresponding to each sampling time is recorded as the sampling flow value; the set time is calculated according to the following formula: ; ; In the above formula, Indicates the set time. represents the total number of sampling times, Indicates the input crude oil amount, Indicates the i-th sampling flow value, i ranges from 1 to I, Indicates the initial time, Indicates the end time.

[0036] S213. When the second flow rate value reaches 0, the second valve is closed, and the third valve and the first valve are opened. The crude oil in the second reaction section that has completed the phosphorus content removal operation flows to the decolorization equipment, and the new crude oil entering the first reaction section repeats the phosphorus content removal operation.

[0037] S22, transporting the crude oil treated in step S21 to a decolorization device for decolorization.

[0038] S23, transporting the crude oil treated in step S22 to a deodorization device for deodorization to obtain diglyceride oil with reduced oil smoke.

[0039] During the decolorization and deodorization process, activated carbon is used for decolorization and deodorization. The activated carbon can also be an activated clay mixture.

[0040] The invention refines the prepared crude oil, first decompresses the crude oil to form bubbles during a neutralization process, reacts with an alkaline material, and then pressurizes the crude oil, thereby more effectively removing phosphorus content from the crude oil. In the operations of decompressing the crude oil and adding the alkaline material, a controller dynamically adjusts the openings of a vacuum valve and a feed valve according to a first flow value, and adjusts the movement speed of a cylinder according to a second flow value during the process of the crude oil in a first reaction part flowing into a second reaction part, thereby ensuring that the crude oil after decompression in the first reaction part is decompressed and before flowing into the second reaction part for pressurization after the second valve is opened, the movement of the cylinder ensures a decompression effect, further ensuring efficiency in removing phosphorus content from the crude oil, and thus ensuring that the amount of oil smoke of the obtained diglyceride oil is reduced when it is reused.

[0041] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Simple modifications or equivalent substitutions of the technical solution of the present invention by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the present invention.

Claims

1. A grease preparation device capable of reducing oil smoke, characterized in that: The invention comprises a crude oil preparation device and a crude oil refining device connected in sequence, wherein the crude oil refining device comprises a neutralization device, a decolorization device, a deodorization device and a controller connected in sequence, wherein the neutralization device comprises a neutralization tank, and the neutralization tank comprises a first reaction part and a second reaction part, wherein the first reaction part is provided with a first inlet and a first outlet, a first flow sensor is provided at the first inlet, and a second flow sensor is provided at the first outlet, a vacuum port and a feed port are provided on the side wall of the first reaction part, the vacuum port is provided with a vacuum valve, the feed port is provided with a feed valve, the vacuum port is connected to a vacuum pump, and the feed port is connected to an alkaline material storage tank; the first flow sensor, the second flow sensor, the vacuum valve, and the feed valve are all electrically connected to the controller; the crude oil is decompressed in the first reaction part to form bubbles, and reacts with the alkaline material in the alkaline material storage tank, and the crude oil flowing out of the first reaction part flows into the second reaction part for pressurization.

2. The grease preparation device capable of reducing oil smoke according to claim 1, characterized in that: A set of opposite side walls of the first reaction part are slidably connected to a sliding plate, a plurality of stirring rods are arranged on the sliding plate, and a plurality of stirring blades are movably connected to the stirring rods.

3. The grease preparation device capable of reducing oil smoke according to claim 2, characterized in that: The side wall of the neutralization tank is provided with a plurality of cylinders, and at least two cylinders are provided on each sliding plate, and the cylinders are used to drive the sliding plate to slide.

4. The grease preparation device capable of reducing oil smoke according to claim 2, characterized in that: The second reaction part is provided with a second inlet and a second outlet, the second inlet is connected to the first outlet, a filter plate is provided in the second reaction part, and the filter plate is provided close to the second outlet; the first inlet is provided with a first valve, the first outlet and the second inlet are provided with a second valve, and the second outlet is provided with a third valve.

5. A method for preparing oil that can reduce oil smoke, characterized in that: The method is carried out using a grease preparation device capable of reducing oil smoke according to any one of claims 1 to 4, comprising the following steps: S1, using crude oil preparation equipment to prepare crude oil; S2, using crude oil refining equipment, the crude oil prepared in step S1 is refined, specifically comprising the following steps: S21, transporting the crude oil prepared in step S1 to a neutralization device to reduce the phosphorus content in the crude oil; S22, transporting the crude oil treated in step S21 to a decolorization device for decolorization; S23, transporting the crude oil treated in step S22 to a deodorization device for deodorization to obtain diglyceride oil.

6. The method for preparing oil capable of reducing oil smoke according to claim 5, characterized in that: S21 specifically includes the following steps: S211, opening the first valve, closing the second valve and the third valve, transporting the crude oil to the first reaction part, decompressing the crude oil to form bubbles, and transporting the alkaline material to the first reaction part; S212: When the first valve is open for a set time, the first valve is closed, the second valve is opened, and the third valve is closed. The crude oil in the first reaction part enters the second reaction part and is pressurized. The controller controls the cylinder to move, causing the cylinder to drive the sliding plate to reciprocate. S213: The second flow sensor detects a second flow value. When the second flow value is 0, the second valve is closed, and the third valve and the first valve are opened. The crude oil in the second reaction section is dephosphorized and transported to the decolorization equipment. The new crude oil in the first reaction section is dephosphorized.

7. The method for preparing oil capable of reducing oil smoke according to claim 6, characterized in that: The first flow sensor detects a first flow value, and the controller controls the opening of the vacuum valve and the opening of the feed valve according to the first flow value. The specific method is as follows: when When the vacuum valve opening is controlled , control the opening of the feed valve to ; when When the vacuum valve opening is controlled , control the opening of the feed valve to ; when When the vacuum valve opening is controlled , control the opening of the feed valve to ; In the above formula, Indicates the first flow value, Indicates the maximum flow rate of liquid that can pass through the first inlet, Indicates the maximum flow rate of liquid that can pass through the first outlet, Greater than .

8. The method for preparing oil capable of reducing oil smoke according to claim 7, characterized in that: In step S211, the maximum first flow value detected by the first flow sensor is set as the first maximum flow value, and the minimum first flow value detected is set as the first minimum flow value; in step S212, the controller controls the speed of the cylinder movement according to the second flow value, the first maximum flow value and the first minimum flow value.

9. The method for preparing oil capable of reducing oil smoke according to claim 8, characterized in that: In step S212, the controller dynamically adjusts the movement speed of the cylinder according to the following formula: ； In the above formula, Indicates the movement speed of the cylinder, Indicates the second flow value, Indicates the first maximum flow value, Indicates the first minimum flow value.

10. The method for preparing oil capable of reducing oil smoke according to claim 8, characterized in that: In step S212, for the first flow sensor, an initial time and an end time are set, and multiple sampling times are set between the initial test time and the end time. The first flow value corresponding to each sampling time is recorded as the sampling flow value; the set time is calculated according to the following formula: ； ； In the above formula, Indicates the set time. represents the total number of sampling times, Indicates the amount of crude oil input. Indicates the i-th sampling flow value, i ranges from 1 to I, Indicates the initial time, Indicates the end time.

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