Strong-flavor rapeseed oil squeezing process and device and optimization management system thereof

Abstract

The invention belongs to the technical field of strong-fragrance rapeseed processing, and particularly relates to a strong-fragrance rapeseed oil squeezing process and device and an optimized management system thereof. The squeezing device comprises a pretreatment module, an oil outlet module, a filtering module and a clarification module, the pretreatment module is used for drying and screening rapeseed raw materials, and the oil outlet module is used for filtering the rapeseed raw materials; the oil outlet module is used for squeezing rapeseed raw materials to obtain oil, and purifying generated crude oil through the filtering module and the clarifying module; according to the device, the slag removal cavity is formed in the scraper, so that fine solid impurities are separated out when oil passes through the interception plate, are enriched into the slag removal cavity and are limited, are transferred to the top area of the clarifying chamber along with the movement of the scraper, and are finally poured into the upper side area of the bearing plate; and high-efficiency cleaning of fine oil residue impurities in the rapeseed oil is realized.

Description

Technical Field

[0001] The present invention belongs to the technical field of concentrated rapeseed processing, and specifically relates to a pressing process, device and optimized management system for concentrated rapeseed oil. Background Art

[0002] Concentrated rapeseed oil is a type of rapeseed oil with a strong characteristic flavor of rapeseed oil and a roasted fragrance. The characteristic flavor of concentrated rapeseed oil is pungent, spicy, and sharp, and also has stir-fried and roasted fragrances. Currently, the commonly used oil extraction process for concentrated rapeseed oil is the pressing method. The rapeseeds need to be stir-fried at high temperature before pressing. During the high-temperature stir-frying process, the flavor components of concentrated rapeseed oil are formed. The main components in its flavor substances are 40-80% glucosinolate degradation products, 10-50% Maillard reaction products, and 0-30% lipid oxidation products. Among them, the glucosinolate degradation products give concentrated rapeseed oil a pungent and spicy flavor, the Maillard reaction products give concentrated rapeseed oil a roasted fragrance, and the lipid oxidation products give concentrated rapeseed oil a lipid flavor. The sensory evaluation results confirm that the pungent and spicy flavor characteristic of rapeseed oil is its main flavor.

[0003] During the pressing and oil extraction process of concentrated rapeseed oil, traditional physical pressing methods are mostly used, such as the small pressing process or screw pressing. The small pressing process usually stir-fries rapeseeds and then presses them using hydraulic or mechanical pressure. This method has a relatively slow oil extraction speed, but can retain the original flavor and nutritional components of rapeseed oil to the greatest extent. However, it is easy to cause a relatively high content of solid impurities in the crude oil produced during pressing, so longer clarification and filtration treatments are required; In the existing clarification equipment, during the static clarification process, a scraper conveyor is used to separate and output the solid impurities deposited at the bottom during the clarification process. This treatment method is not suitable for separating the small oil residue impurities with a small volume in the crude oil. Therefore, there are still a large number of fine impurities in the clarified rapeseed oil, which will increase the workload of subsequent filtration treatment. Summary of the Invention

[0004] In order to make up for the deficiencies of the prior art and solve the above technical problems, the present invention proposes a pressing process, device and optimized management system for concentrated rapeseed oil.

[0005] The technical solution adopted by the present invention to solve its technical problems is: The present invention proposes a pressing device for concentrated rapeseed oil, including a pretreatment module, an oil extraction module, a filtration module, and a clarification module. The pretreatment module is used to dry and screen the rapeseed raw materials. The oil extraction module presses and extracts oil from the rapeseed raw materials, and purifies the produced crude oil through the filtration module and the clarification module; The clarification module includes a clarification tank. An oil inlet and an oil outlet are respectively arranged on the side wall of the clarification tank. An annular circulating scraper conveyor is arranged inside the clarification tank. A slag discharging chamber is arranged inside the clarification tank in the area surrounded by the circulating scraper conveyor. An oil slag scraper conveyor is arranged inside the slag discharging chamber. A receiving plate is arranged near the top inside the clarification tank. The receiving plate extends to the top surface of the slag discharging chamber, and the top opening of the slag discharging chamber communicates with the area above the receiving plate. A filter plate is arranged at the bottom opening of the slag discharging chamber; The scraper of the circulating scraper conveyor is hollow inside to form a slag removal chamber. A horizontal liquid inlet is arranged on the bottom side wall of the scraper, and a discharge port is arranged at the top of the scraper; Intercepting rods are evenly arranged at the opening of the liquid inlet, and an intercepting plate is arranged inside the slag removal chamber. The intercepting plate is used to separate solid impurities mixed in the incoming crude oil.

[0006] Preferably, the filtering member includes an intercepting plate. Filter holes are evenly arranged on the intercepting plate. The intercepting plate is rotatably connected to the inner wall of the slag removal chamber, and a torsion spring is arranged at the rotating connection part; An installation hole is arranged at the bottom of the slag removal chamber. A top rod is arranged near the top inside the clarification tank. The end of the top rod corresponds to the installation hole, and the top rod is connected to the output end of the telescopic device on the inner wall of the clarification tank; A sealing film is arranged inside the installation hole. The sealing film is made of an elastic material, and a through hole is arranged in the middle of the sealing film.

[0007] Preferably, a separation net is arranged near the discharge port inside the slag removal chamber. The separation net divides the internal area of the slag removal chamber into a separation area and a circulation area; The separation area is surrounded by the separation net and the inner wall of the slag removal chamber. Both ends of the circulation area 25 communicate with the discharge port and the liquid inlet respectively, and the intercepting plate is located inside the circulation area 25.

[0008] Preferably, the number of the intercepting plates is not less than two, and the intercepting plates are evenly arranged inside the circulation area 25; The aperture of the intercepting plate closer to the liquid inlet is larger than the aperture of the intercepting plate farther from the liquid inlet.

[0009] Preferably, guide plates are evenly arranged inside the separation area. The guide plates divide the inner part of the separation area into multiple sub-areas. The ends of the guide plates incline towards the direction close to the discharge port and are connected to the separation net.

[0010] Preferably, the side of the intercepting plate away from the separation net is rotatably connected to the inner wall of the circulation area 25. The end of the intercepting plate on the side close to the separation net abuts against the outer surface of the separation net, and the contact position between the end of the intercepting plate and the separation net is located in the area between adjacent guide plates.

[0011] Preferably, a communication hole is provided at a portion of the deflector away from the separation net, so that adjacent sub-regions communicate with each other.

[0012] Preferably, the ejector rod is of a tubular structure, and spray holes are uniformly provided on the side wall of the ejector rod. The interior of the ejector rod communicates with the rapeseed oil inside the clarification tank through a supplementary pipe.

[0013] A process for pressing strong-flavor rapeseed oil, the pressing process being applicable to the above-mentioned pressing device, and the specific steps of the pressing process include: S1, pretreatment stage: For rapeseed raw materials, first use a vibrating screen device for screening to separate stones, dirt, and metal fragment impurities in the rapeseed. Subsequently, use a dryer device or a sun-drying treatment method to reduce the moisture in the rapeseed raw materials to the range required for pressing. S2, oil pressing and extraction stage; Feed the pretreated rapeseed raw materials into the oil extraction module, and use a screw oil press device to press and extract the rapeseed raw materials, so that the rapeseed raw materials are continuously pressurized as they rotate with the screw shaft in the pressing chamber, and the crude oil is extruded and flows out from the gaps in the pressing cage. S3, filtration treatment stage: Feed the crude oil mixed with impurities into the interior of the clarification tank, let it stand and precipitate in the internal clarification chamber, use a circulating scraper conveyor to lift the oil residue impurities accumulated at the bottom to the inside of the slag discharge chamber, and then output the oil residue impurities through an oil residue scraper conveyor. The standing oil liquid is input into the filtration module for further filtration and purification treatment to obtain clarified rapeseed oil.

[0014] An optimization management system for pressing strong-flavor rapeseed oil, the optimization management system being applicable to the above-mentioned pressing device, and the optimization management system includes an equipment monitoring module, a quality detection module, a production scheduling module, an energy management module, and an equipment maintenance module.

[0015] The beneficial effects of the present invention are as follows: For the process, device and its optimization management system for pressing strong-flavor rapeseed oil of the present invention, in order to improve the cleaning efficiency of fine oil residue impurities, a slag removal chamber is provided inside the scraper. When the scraper moves horizontally at the bottom area of the clarification chamber and scrapes the oil residue impurities accumulated in the bottom area, large pieces of oil residue impurities are located on the outer surface of the scraper and are blocked by the intercepting rod when approaching the liquid inlet. After the liquid part mixed in the solid impurities enters the slag removal chamber and is blocked, it flows upward. During the process of passing through the intercepting plate, the solid particle impurities inside the oil liquid are separated, enabling them to be enriched inside the slag removal chamber and being restricted by the interception, and they can move synchronously with the scraper. Subsequently, when the scraper moves to the top area of the clarification chamber, with the flipping of the scraper, the accumulated oil slag impurities inside are poured into the upper area of the receiving plate along with the mixed oil liquid, improving the cleaning efficiency of the fine oil slag impurities. Brief Description of the Drawings

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 is a three-dimensional view of the clarification module in the present invention; Figure 2 is a cross-sectional view of the clarification module in the present invention; Figure 3 is Figure 2 a partial enlarged view of part A in Figure 4 is a three-dimensional view of the scraper in the present invention; Figure 5 is a cross-sectional view of the scraper in the present invention in a vertical state at the bottom of the clarification chamber; Figure 6 is a cross-sectional view of the scraper in the present invention in a horizontal state when moving vertically upward in the clarification chamber; Figure 7 is a cross-sectional view of the scraper in the present invention in an inverted state at the top of the clarification chamber; Figure 8 is Figure 5 a partial enlarged view of part B in Figure 9 is a flow chart of the pressing process in the present invention.

[0018] In the figure: clarification tank 1, slag discharge chamber 11, oil slag scraper conveyor 12, receiving plate 13, top rod 14, telescopic device 141, supplementary pipe 142, spray hole 143, circulating scraper conveyor 2, scraper 21, slag removal chamber 22, liquid inlet 221, discharge port 222, intercepting plate 223, mounting hole 224, sealing film 225, intercepting rod 226, separation net 23, separation area 24, guide plate 241, sub-area 242, communication hole 243, circulation area 25. Detailed Embodiments

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Example 1: As shown in the accompanying drawings of the specification Figures 1-8 A concentrated fragrant rapeseed oil pressing device includes a pretreatment module, an oil extraction module, a filtration module, and a clarification module. The pretreatment module includes existing equipment such as vibrating screens and cleaning screens to screen rapeseeds, separate impurities such as stones, soil, and metal in the rapeseeds, and dry the rapeseeds by means of a dryer or sun drying to make the moisture content of the rapeseeds reach a suitable range for pressing, generally 8%-12%. In order to increase the flavor, the rapeseed raw materials can be subjected to high-temperature frying treatment before pressing; The oil extraction module includes existing equipment such as screw oil presses. Pour the rapeseed raw materials, press the rapeseed raw materials to extract oil, and send the produced crude oil into the clarification module. Use the different densities between the liquid part and the solid impurities to carry out clarification separation. After initially removing the solid impurities, then send the crude oil to the filtration module, and use equipment such as plate and frame filter presses, vacuum filters, or bag filters to further filter the crude oil to fully remove the solid impurities in the crude oil. According to the quality requirements of rapeseed oil, refining equipment can be used to further refine the rapeseed oil that has passed through the filtration module to further improve the quality of rapeseed oil; Specifically, the clarification module includes a clarification tank 1. An oil inlet and an oil outlet are respectively arranged on the inner wall of the clarification chamber inside the clarification tank 1; An annular circulating scraper conveyor 2 is arranged inside the clarification tank 1. The circulating scraper conveyor 2 includes sprockets, chains, and power equipment, etc. The sprockets are respectively located at the right angles of the square clarification chamber, and under the drive of an external motor power equipment, the scraper 21 on the chain is driven by the sprockets to move, realizing the scraping and cleaning of the solid impurities accumulated at the bottom of the clarification chamber; A slag discharge chamber 11 is arranged inside the clarification tank 1 in the area surrounded by the circulating scraper conveyor 2. An oil slag scraper conveyor 12 is arranged inside the slag discharge chamber 11. A receiving plate 13 is arranged at a position near the top inside the clarification tank 1. The receiving plate 13 extends to the top surface of the slag discharge chamber 11, and the top opening of the slag discharge chamber 11 communicates with the upper side area of the receiving plate 13. A filter plate is arranged at the bottom opening of the slag discharge chamber 11; The scraper 21 of the circulating scraper conveyor 2 is hollow inside to form a slag removal cavity 22. A horizontal liquid inlet 221 is arranged on the bottom side wall of the scraper 21, and a discharge port 222 is arranged on the top of the scraper 21. Intercepting rods 226 are evenly arranged at the opening of the liquid inlet 221. The evenly distributed intercepting rods 226 form a mesh structure to intercept large oil slag impurities and make them stay on the outer surface of the scraper 21. And an intercepting plate 223 is arranged inside the slag removal cavity 22. The intercepting plate 223 is a filter plate structure, and filter holes are evenly arranged on the surface. The intercepting plate 223 is used to separate the impurities mixed in the incoming crude oil.

[0021] Specific working process: During the preparation of rapeseed oil pressing, the crude oil containing a large amount of solid impurities obtained by the oil extraction module is input into the clarification chamber inside the clarification tank 1 through the oil inlet for static settlement; the solid oil residues mixed in the crude oil settle downward under the action of gravity and accumulate in the bottom area of the clarification tank 1; After the crude oil is clarified for a period of time, start the circulating scraper conveyor 2. After the annularly distributed scraper 21 enters the bottom of the clarification chamber driven by the connected chain, it moves horizontally from one side of the bottom of the clarification chamber to the other side along the horizontal direction, and then vertically moves up to the sprocket at the top of the clarification chamber after passing through the sprocket on the other side, and then moves horizontally after flipping; the vertical projection of the moving track of the scraper 21 inside the clarification chamber is an approximately rectangular annular movement; during the movement, it scrapes the solid oil residue impurities accumulated in the bottom area of the clarification chamber and moves them to the area on one side of the upper clarification chamber located on the receiving plate 13 along with the scraper 21; When the scraper 21 moves to the top area and bypasses the corresponding sprocket, at this time, due to the flipping of the scraper 21, the mixture of oil residue and crude oil scraped and attached on the scraper 21 is separated under the action of gravity and the centrifugal force during flipping and falls to the upper surface of the receiving plate 13. Subsequently, the oil residue mixture flows along the upper surface of the receiving plate 13 into the slag discharge chamber 11; under the agitation of the oil residue scraper conveyor 12 inside the slag discharge chamber 11, the liquid part in the oil residue mixture flows downward through the filter plate at the bottom outlet and returns to the oil liquid inside the clarification tank 1, while the solid part of the impurities is carried by the running oil residue scraper conveyor 12 to the location of the external oil residue treatment equipment, realizing the solid-liquid separation of the crude oil inside the clarification tank 1 and the automatic cleaning of the separated oil residue impurities; Furthermore, in order to improve the cleaning efficiency of fine oil residue impurities, a slag removal chamber 22 is arranged inside the scraper 21. When the scraper 21 moves horizontally in the bottom area of the clarification chamber and scrapes the oil residue impurities accumulated in the bottom area, the large oil residue impurities are located on the outer surface of the scraper 21 and are blocked by the blocking rod 226 when approaching the liquid inlet 221; however, the liquid part mixed in the solid impurities can pass through the gaps of the blocking rod 226 and flow into the slag removal chamber 22; After the oil liquid enters the slag removal chamber 22, it is blocked and flows upward, and after separating the solid particle impurities inside the oil liquid during the process of passing through the blocking plate 223, it flows out from the discharge port 222 arranged at the top; during the process of the scraper 21 moving from one side of the bottom of the clarification chamber to the other side, on the one hand, it pushes the large oil residue impurities to adhere to the outer surface and move along with it, and on the other hand, it enables the fine impurities mixed in the liquid part to be enriched in the slag removal chamber 22 when passing through the internal slag removal chamber 22 and be restricted by the interception, and can move synchronously with the scraper 21; Subsequently, when the scraper 21 moves to the top area of the clarification chamber, as the scraper 21 flips, the accumulated oil residue impurities inside are poured into the upper area of the receiving plate 13 along with the mixed oil liquid. Regarding how to prompt the interception plate 223 to release the restriction on the fine solid impurities, the interception plate 223 can be connected to a micro-motor on the inner wall of the slag removal chamber 22. Normally, it remains horizontally placed to intercept and filter the passing oil impurities. When it moves to the upper area of the receiving plate 13, the micro-motor is started to drive the interception plate 223 to rotate, so that the restricted solid impurities are no longer intercepted and smoothly flow downward through the discharge port 222, realizing the transfer of the enriched and restricted solid impurities; Regarding how to realize the restriction and transfer of the solid impurities collected inside the slag removal chamber 22, there are various different technical solutions, not limited to the implementation solutions described above. Those that can achieve the above functions can all be applied to this application; In this way, the efficient collection and purification of the crude oil containing solid impurities inside the clarification chamber are realized, the content of fine particle impurities in the crude oil is reduced, and the quality of the rapeseed oil after the clarification process is improved.

[0022] Embodiment 2: Based on Embodiment 1, this embodiment provides another possible technical solution to realize the smooth transfer of the solid impurities restricted by the interception plate 223; specifically, the interception plate 223 is rotatably connected to the inner wall of the slag removal chamber 22, and a torsion spring is provided at the rotational connection part; An installation hole 224 is provided at the bottom of the slag removal chamber 22, and a top rod 14 is provided at a position near the top inside the clarification tank 1. The end of the top rod 14 corresponds to the installation hole 224, and the top rod 14 is connected to the output end of the telescopic device 141 on the top inner wall of the clarification tank 1.

[0023] Specific working process: On the basis of the specific working process in Embodiment 1, as the scraper 21 moves horizontally at the bottom of the clarification chamber, it pushes the solid oil residue impurities deposited and piled up in the bottom area of the clarification chamber. The larger solid impurities are pushed by the scraper 21 and move along the outer surface of the scraper 21; while the smaller impurities flow into the liquid inlet 221 at the bottom of the scraper 21 along with the oil liquid, enter the inside of the slag removal chamber 22, and then pass through the interception plate 223 inside the slag removal chamber 22. The fine impurities remain on the surface of the interception plate 223, while the oil liquid smoothly passes through the interception plate 223 and flows out from the discharge port 222 at the top. The solid particle impurities are restricted inside the slag removal chamber 22 by the interception plate 223, realizing the collection of the fine solid impurities mixed in the oil liquid; Subsequently, when the scraper 21 moves to the upper region of the receiving plate 13, as the scraper 21 flips, the discharge port 222 is located at the bottom region of the receiving plate 13 at this time. When the receiving plate 13 moves to the vicinity of the corresponding position, the movement of the receiving plate 13 is stopped, and the telescopic device 141 connected to the ejector rod 14 is activated, causing the ejector rod 14 to move downward and pass through the mounting hole 224 on the slag removal chamber 22 and extend into the interior of the slag removal chamber 22, and contact the intercepting plate 223 inside the slag removal chamber 22. Under the action of pressure, the intercepting plate 223 flips along the rotation connection part, and the end of the ejector rod 14 extends out from the discharge port 222; at this time, the solid impurities intercepted inside the slag removal chamber 22 are no longer restricted. As the continuously extending ejector rod 14 passes through the flipped intercepting plate 223 and flows out from the discharge port 222, then the ejector rod 14 is reset, and the intercepting plate 223 rotates and resets under the action of the torsion spring; repeating the above process, the extension and reset of the ejector rod 14 are reciprocated multiple times, so that the fine solid impurities accumulated inside the slag removal chamber 22 are pushed by the ejector rod 14 to fully leave the slag removal chamber 22, thereby realizing the cleaning of the solid impurities inside the slag removal chamber 22, and also realizing the automatic and efficient transfer and cleaning of the solid impurities in the bottom region of the clarification chamber.

[0024] Embodiment Three: On the basis of Embodiment Two, a separation net 23 is arranged at the part inside the slag removal chamber 22 close to the discharge port 222. The separation net 23 divides the internal area of the slag removal chamber 22 into a separation area 24 and a circulation area 25; The separation area 24 is surrounded by the separation net 23 and the inner wall of the slag removal chamber 22. The two side ends of the circulation area 25 are respectively communicated with the discharge port 222 and the liquid inlet 221, and the intercepting plate 223 is located inside the circulation area 25; A sealing film 225 is arranged inside the mounting hole 224. The sealing film 225 is made of elastic material, and a through hole is arranged in the middle part of the sealing film 225; Specific working process: On the basis of the specific working process in Embodiment Two, during the lateral movement of the scraper 21, after the oil enters the interior of the slag removal chamber 22, part of the oil enters the circulation area 25, and passes through the intercepting plate 223 in the circulation area 25 to separate the solid impurities contained in the oil; part of the oil is blocked at the intercepting plate 223 and then passes through the separation net 23 on one side and enters the separation area 24, and then flows out from the separation area 24 and passes through the discharge port 222 at the end of the circulation area 25; in this way, part of the oil can bypass the intercepting plate 223, reducing the load on the intercepting plate 223, and the oil passing through the separation area 24 leaves the solid impurities on the outer surface of the separation net 23; The separation net 23 increases the filtration and purification efficiency of the solid particle impurities in the oil, and expands the distribution range of the particle impurities, reducing the aggregation of the particle impurities, thereby reducing the blockage of the circulation area 25; and when the scraper 21 moves to one side of the clarification chamber and moves vertically upward, refer to the attached Figures 5-6, at this time, the scraper 21 changes from the upright state to the horizontal state. In the horizontal state, the liquid inlet 221 and the discharge outlet 222 are located on the horizontal two sides of the slag removal chamber 22, and are both higher than the separation zone 24 in the vertical direction. The sealing film 225 inside the mounting hole 224 plays a role in intercepting the oil liquid, so that the remaining oil liquid is restricted inside the slag removal chamber 22, and enters the separation zone 24 under the action of gravity, and the solid impurities are left in the flow-through zone 25, realizing solid-liquid separation inside the slag removal chamber 22; As the scraper 21 moves to the uppermost side and then flips to the inverted state, under the action of gravity, the liquid oil with strong fluidity that has been filtered and purified in the separation zone 24 accelerates to wash outward from inside the separation net 23, so that the separation net 23 is washed from the inside to the outside, prompting the solid impurities on the outer surface of the separation net 23 to separate out under the washing; at the same time, the movement of the ejector rod 14 squeezes the sealing film 225 to expand the deformation of the middle through hole. After that, the ejector rod 14 passes through the middle through hole of the sealing film 225 and extends into the inner wall of the flow-through zone 25, and the intercepting plate 223 is squeezed and flipped, assisting the oil liquid flowing out from the separation zone 24 to flow out and wash the solid impurities separated inside the flow-through zone 25, and then lose acceleration and pass through the opened intercepting plate 223, and flow into the upper side of the receiving plate 13 from the discharge outlet 222, realizing the cleaning of the solid impurities inside the slag removal chamber 22, ensuring the normal passability of the separation net 23 inside the slag removal chamber 22, and further improving the purification efficiency of the solid impurities in the crude oil.

[0025] Example Four: On the basis of Example Three, the number of intercepting plates 223 is not less than two, and the intercepting plates 223 are evenly arranged inside the flow-through zone 25; the aperture of the intercepting plate 223 close to the liquid inlet 221 is larger than the aperture of the intercepting plate 223 far from the liquid inlet 221; Specific working process: On the basis of the specific working process in Example Three, a plurality of intercepting plates 223 are arranged inside the flow-through zone 25. In this way, when the oil liquid flows along the flow-through zone 25 towards the discharge outlet 222, it needs to pass through multiple layers of intercepting plates 223 to realize multi-stage filtration and purification of the passing oil liquid; and the aperture of the intercepting plate 223 close to the liquid inlet 221 is set to be larger, so that the larger impurities in the oil liquid are intercepted by the intercepting plate 223 close to the liquid inlet 221, and the smaller impurities enter the next layer of intercepting plate 223 as the oil liquid flows. Subsequently, the smaller impurities are intercepted by the intercepting plate 223 with a smaller filter hole aperture; in this way, through the difference in the filter hole aperture, solid impurities of different volumes are intercepted separately, and are distributed to different intercepting plates 223, ensuring the full filtration and purification of the passing oil liquid, and effectively avoiding the influence of the over-concentration of solid impurities in a local area on the passability of the flow-through zone 25, making the purification of the oil liquid smoother.

[0026] Example Five: On the basis of Embodiment 4, flow guiding plates 241 are evenly arranged inside the separation area 24. The flow guiding plates 241 divide the inside of the separation area 24 into multiple sub-areas 242. The ends of the flow guiding plates 241 are inclined towards the direction close to the discharge port 222 and are connected to the separation mesh 23. One side of the intercepting plate 223 away from the separation mesh 23 is rotatably connected to the inner wall of the flow-through area 25. One end of the intercepting plate 223 close to the separation mesh 23 abuts against the outer surface of the separation mesh 23, and the contact position between the end of the intercepting plate 223 and the separation mesh 23 is located in the area between adjacent flow guiding plates 241.

[0027] Specific working process: On the basis of the specific working process in Embodiment 4, when the oil fluid enters the inside of the flow-through area 25 from the liquid inlet 221, it first contacts the first layer of intercepting plate 223. Part of the oil fluid passes through the intercepting plate 223 and continues to flow, and part of the oil fluid enters the first sub-area 242 through the separation mesh 23 on one side due to being blocked. After continuing to flow, it is intercepted by the flow guiding plate 241 and passes through the separation mesh 23 again along the surface of the flow guiding plate 241 and enters the gap area between the first layer of intercepting plate 223 and the second layer of intercepting plate 223, and merges with the oil fluid that directly passes through the first layer of intercepting plate 223 and contacts the second layer of intercepting plate 223 and repeats the above process until the oil fluid flows out from the discharge port 222. In this way, the control of the flow path of the oil fluid is realized, so that the residence time of the oil fluid in the slag removal chamber 22 is increased, it repeatedly contacts the separation mesh 23 and each intercepting plate 223, and the impurities are more evenly dispersed on the surfaces of the separation mesh 23 and the intercepting plate 223, reducing the situation that the flow-through area 25 is blocked due to the local concentration of solid impurities. Further, when the scraper 21 is flipped to the horizontal state and moves vertically upward, at this time, the oil fluid remaining in the slag removal chamber 22 passes through the separation mesh 23 and enters the inside of the separation area 24, and is evenly distributed into each sub-area 242 under the action of the flow guiding plate 241; because communication holes 243 are arranged at the parts of the flow guiding plate 241 away from the separation mesh 23, adjacent sub-areas 242 are communicated with each other, so that the oil fluid flows between the sub-areas 242 through the communication holes 243, making the liquid levels of the oil fluid in each sub-area 242 flush, and the oil fluid in the separation area 24 is more evenly distributed in each sub-area 242. As it flips again when moving up to the highest position, the scraper 21 in the inverted state causes the oil in the sub-region 242 to impact the corresponding part of the separation net 23 along the flow guide plate 241 under the action of gravity, making the scouring effect on the separation net 23 more evenly distributed; and because the extension of the ejector rod 14 pushes the intercepting plate 223 to flip, and the intercepting plate 223 corresponds to the flow guide plate 241 one by one, and at this time the extending direction of the end of the intercepting plate 223 corresponds to the surface of the intercepting plate 223 adhering to impurities, so the oil flowing out along the flow guide plate 241 accelerates through the separation net 23 and then impacts the surface of the intercepting plate 223, thereby effectively taking away the solid impurities intercepted on the surfaces of the intercepting plate 223 and the separation net 23, and driving them to mix into the flowing oil and flow out from the circulation area 25 opened by the ejector rod 14, realizing the discharge of the solid impurities inside the slag removal chamber 22.

[0028] Embodiment Six: On the basis of Embodiment Five, the ejector rod 14 is of a tubular structure, and spray holes 143 are uniformly arranged on the side wall of the ejector rod 14. The inside of the ejector rod 14 communicates with the rapeseed oil inside the clarification tank 1 through a supplementary pipe 142. The supplementary pipe 142 is a flexible pipe, and a pumping equipment is arranged in the middle; Specific working process: On the basis of the specific working process in Embodiment Five, when starting the telescopic equipment 141 connected to the ejector rod 14 to make the ejector rod 14 move down and extend into the slag removal chamber 22 through the mounting hole 224, at the same time, start the pumping equipment connected to the supplementary pipe 142, pump the rapeseed oil in the middle area inside the clarification tank 1 into the supplementary pipe 142, and then supplement it into the ejector rod 14, and flow out from the uniformly distributed spray holes 143 on the side wall, so that each part inside the slag removal chamber 22 is scoured and cleaned, and the fine impurities collected therein are fully carried out, ensuring the normal progress of subsequent repeated work.

[0029] Embodiment Seven: On the basis of the above embodiments, a concentrated and fragrant rapeseed oil pressing process, the pressing process is applicable to the above pressing device, and the specific steps of the pressing process include: S1, Pretreatment stage: For the rapeseed raw materials, first use a vibrating screen device for screening to separate stones, soil and metal fragment impurities in the rapeseed, and then use a dryer device or a drying treatment method to reduce the moisture in the rapeseed raw materials to the range required for pressing; S2, Pressing and oil extraction stage; Feed the pretreated rapeseed raw materials into the oil extraction module, and use a screw oil press device to press the rapeseed raw materials to extract oil, so that the rapeseed raw materials are continuously pressurized as they rotate with the spiral shaft in the pressing chamber, and the crude oil is extruded and flows out from the gaps of the pressing cage; S3: Filtration processing stage. Feed the crude oil mixed with impurities into the interior of the clarification tank 1, let it stand and precipitate in the internal clarification chamber. Use the circulating scraper conveyor 2 to lift the oil residue impurities accumulated at the bottom to the interior of the slag discharge chamber 11, and then output the oil residue impurities through the oil residue scraper conveyor 12. The static oil liquid is input into the filtration module for further filtration and purification treatment to obtain clarified rapeseed oil.

[0030] Example Seven: Based on the above embodiments, an optimized management system for pressed strong-flavor rapeseed oil. The optimized management system is applicable to the above-mentioned pressing device. The optimized management system includes an equipment monitoring module, a quality inspection module, a production scheduling module, an energy management module, and an equipment maintenance module. Specifically: The equipment monitoring module installs sensors at key parts of the pressing device. For example, in the clarification chamber inside the clarification tank 1, it monitors data such as the temperature of the internal crude oil. It can also be installed on the power motor equipment used to drive the circulating scraper conveyor 2 and the oil residue scraper conveyor 12 to monitor the normal operation of these power sources. The types of sensors can include pressure sensors, temperature sensors, speed sensors, etc., and it collects the operation parameters of the equipment in real time, including pressing pressure, temperature, motor speed, material flow rate, etc. The quality inspection module is equipped with an automatic sampling device. Rapeseed oil is sampled at set time intervals or production volumes. Subsequently, technologies such as near-infrared spectroscopy analysis and nuclear magnetic resonance are used for the samples to conduct on-line quality inspection of the rapeseed oil in the oil output module, and it monitors the quality indicators of the oil in real time, such as acid value, peroxide value, color, impurity content, etc.

[0031] The production scheduling module can, according to factors such as order requirements, raw material supply, and equipment production capacity, use production planning and scheduling software to formulate a reasonable production plan, determine the priority and order of production tasks, and reasonably arrange the production time and production batches of the equipment. The energy management module includes energy metering instruments installed on various equipment of the pressing device, such as electric energy meters, flow meters, gas meters, etc., which monitor and measure the energy consumption of the pressing device in real time, and collect energy consumption data, including the usage and usage time of energy such as electricity, water, steam, gas, etc. Based on the analysis of energy data, an intelligent control system is used to optimize and adjust the operation parameters of the equipment. For example, it automatically adjusts the speed of the motor according to the production load and optimizes the temperature control of the heating system, etc., to reduce energy consumption and improve energy utilization efficiency. The equipment maintenance module can use fault diagnosis technologies, such as vibration analysis, oil analysis, fault tree analysis, etc., to conduct real-time diagnosis of the operation status of the equipment, timely discover potential fault hazards, and send warning messages to the operators through the warning system so as to take maintenance measures in advance.

[0032] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A pressed device for strongly fragrant rapeseed oil, comprising a pretreatment module, an oil extraction module, a filtration module and a clarification module; characterized in that, The clarification module includes a clarification tank (1). Inside the clarification tank (1), an annular circulating scraper conveyor (2) is provided. Inside the clarification tank (1), in the area surrounded by the circulating scraper conveyor (2), a slag discharging chamber (11) is provided. Inside the slag discharging chamber (11), a slag scraper conveyor (12) is provided. Near the top inside the clarification tank (1), a receiving plate (13) is provided. The receiving plate (13) extends to the top surface of the slag discharging chamber (11). And the top opening of the slag discharging chamber (11) communicates with the area above the receiving plate (13). At the bottom opening of the slag discharging chamber (11), a filter plate is provided. The scraper (21) of the circulating scraper conveyor (2) is hollow inside to form a slag removal cavity (22). On the bottom side wall of the scraper (21), a horizontal liquid inlet (221) is provided. At the top of the scraper (21), a discharge port (222) is provided. At the opening of the liquid inlet (221), intercepting rods (226) are evenly provided. And inside the slag removal cavity (22), an intercepting plate (223) is provided. The intercepting plate (223) is used to separate the solid impurities mixed in the incoming crude oil.

2. The pressed device for thick and fragrant rapeseed oil according to claim 1, wherein: The filtering element includes the intercepting plate (223). The intercepting plate (223) is evenly provided with filter holes. The intercepting plate (223) is rotatably connected to the inner wall of the slag removal cavity (22). And at the rotation connection part, a torsion spring is provided. At the bottom of the slag removal cavity (22), an installation hole (224) is provided. Near the top inside the clarification tank (1), a top rod (14) is provided. The end of the top rod (14) corresponds to the installation hole (224). And the top rod (14) is connected to the output end of a telescopic device (141) on the inner wall of the clarification tank (1). Inside the installation hole (224), a sealing film (225) is provided. The sealing film (225) is made of elastic material. And in the middle part of the sealing film (225), a through hole is provided.

3. The pressing device for thick and fragrant rapeseed oil according to claim 2, characterized in that: Inside the slag removal cavity (22), near the discharge port (222), a separation net (23) is provided. The separation net (23) divides the inner area of the slag removal cavity (22) into a separation area (24) and a circulation area (25). The separation area (24) is surrounded by the separation net (23) and the inner wall of the slag removal cavity (22). The two side ends of the circulation area (25) communicate with the discharge port (222) and the liquid inlet (221) respectively. And the intercepting plate (223) is located inside the circulation area (25).

4. A pressed device for thick and fragrant rapeseed oil according to claim 3, characterized in that: The number of the intercepting plates (223) is not less than two. And the intercepting plates (223) are evenly arranged inside the circulation area (25). The aperture of the intercepting plate (223) near the liquid inlet (221) is larger than the aperture of the intercepting plate (223) far from the liquid inlet (221).

5. A pressed device for strongly fragrant rapeseed oil according to claim 4, wherein: Inside the separation area (24), guide plates (241) are evenly provided. The guide plates (241) divide the inner part of the separation area (24) into multiple sub-areas (242). The ends of the guide plates (241) incline towards the direction close to the discharge port (222) and are connected to the separation net (23).

6. The pressing device for strongly fragrant rapeseed oil according to claim 5, characterized in that: One side of the intercepting plate (223) away from the separation net (23) is rotatably connected to the inner wall of the circulation area (25). One end of the intercepting plate (223) close to the separation net (23) abuts against the outer surface of the separation net (23), and the contact position between the end of the intercepting plate (223) and the separation net (23) is located in the area between adjacent flow guiding plates (241).

7. The pressed device for strongly flavored rapeseed oil according to claim 6, wherein: Communication holes (243) are provided at the parts of the flow guiding plates (241) away from the separation net (23), so that adjacent sub-areas (242) communicate with each other.

8. The pressing device for strongly fragrant rapeseed oil according to claim 7, characterized in that: The ejector rod (14) is of a tubular structure, and spray holes (143) are evenly arranged on the side wall of the ejector rod (14). The inside of the ejector rod (14) communicates with the rapeseed oil inside the clarification tank (1) through a supplementary pipe (142).

9. A pressing process for strong-flavored rapeseed oil, wherein the pressing process uses the pressing device of any one of the above claims 1-8, and is characterized in that, The specific steps of the pressing process include: S1. Pretreatment stage: For rapeseed raw materials, first use a vibrating screen device for screening to separate stones, soil and metal fragment impurities in the rapeseed. Subsequently, use a dryer device or a sun-drying treatment method to reduce the moisture in the rapeseed raw materials to the range required for pressing. S2. Pressing and oil extraction stage; Feed the pretreated rapeseed raw materials into the oil extraction module, and use a screw oil press device to press and extract the rapeseed raw materials, so that the rapeseed raw materials are continuously pressurized as they rotate with the spiral shaft in the pressing chamber, and the crude oil is extruded and flows out from the gaps in the pressing cage. S3: Filtration treatment stage, feed the crude oil mixed with impurities into the clarification tank (1), let it stand and precipitate in the internal clarification chamber, use a circulating scraper conveyor (2) to lift the oil residue impurities accumulated at the bottom to the slag discharge chamber (11) inside, and then output the oil residue impurities through an oil residue scraper conveyor (12). The standing oil liquid is input into the filtration module for further filtration and purification treatment to obtain clarified rapeseed oil.

10. An optimized management system for pressing strong-flavored rapeseed oil, characterized in that, The optimization management system is applicable to the pressing device described in any one of the above claims 1-8. The optimization management system includes an equipment monitoring module, a quality detection module, a production scheduling module, an energy management module and an equipment maintenance module.

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