Rapeseed oil liquid purification equipment and purification method

Abstract

The invention discloses rapeseed oil liquid purification equipment and a purification method and belongs to the technical field of rapeseed oil production. The device is characterized by comprising a box body, a pressure head assembly and an adsorption assembly. The box body is used for containing squeezed rapeseed oil liquid, the pressing head assembly is arranged over the box body, and the adsorption assemblies are arranged at the tops of the four side walls of the box body. The pressing head assembly is made to do reciprocating lifting motion through external force, the rapeseed oil liquid in the box body is made to continuously diffuse towards the four sides and make contact with the adsorption assembly, and impurities of the rapeseed oil liquid are intercepted on the adsorption assembly. The working efficiency of oil purification can be improved, and the quality of rapeseed oil is guaranteed.

Description

Technical Field

[0001] The invention relates to rapeseed oil liquid purification equipment and a purification method, belonging to the technical field of rapeseed oil production. Background Art

[0002] Rapeseed oil is one of the most common edible oils in life, and pressing is the most commonly used production process for rapeseed oil. The pressing method extracts oil by squeezing rapeseed, and no chemical solvents are involved in the process, so more nutrients and natural flavors can be retained. However, the rapeseed oil liquid after pressing contains more impurities (such as phospholipids, etc.), which will affect the quality and stability of rapeseed oil. The traditional method of removing impurities from rapeseed oil liquid is to use filtration, but this method has the problems of slow filtration speed and low work efficiency. Summary of the invention

[0003] The purpose of the present invention is to provide a rapeseed oil purification device and a purification method in view of the deficiencies of the above-mentioned prior art, which can improve the working efficiency of oil purification and ensure the quality of rapeseed oil.

[0004] The first object of the present invention is to provide a rapeseed oil purification device, which is characterized by comprising: a box, a pressure head assembly, and an adsorption assembly. The box is used to hold the rapeseed oil after squeezing, the pressure head assembly is arranged directly above the box, and the adsorption assembly is arranged on the top of the four side walls of the box.

[0005] In the above scheme, the pressure head assembly is reciprocated and lifted by external force, so that the rapeseed oil liquid in the box is continuously diffused to the four sides and contacts with the adsorption assembly, and the impurities in the rapeseed oil liquid are intercepted on the adsorption assembly. The pressure head assembly is continuously lifted and lowered, so that the rapeseed oil liquid is continuously overflowed and contacts with the adsorption assembly for purification.

[0006] Furthermore, the tops of the four side walls of the box are provided with inclined retaining walls, and baffles are provided on both sides of the retaining walls to prevent the rapeseed oil from overflowing; the adsorption component is located above the retaining wall and is arranged parallel to the retaining wall.

[0007] In the above scheme, one end of the retaining wall is connected to the top of the side wall of the box, and the other end is arranged to be inclined upward and outward, and two baffles are provided, which can allow the rapeseed oil liquid to overflow under the action of the pressure head and contact with the adsorption component, and can also help the purified rapeseed oil liquid to fall back into the box smoothly, while preventing the rapeseed oil liquid from overflowing out of the box.

[0008] Furthermore, the pressure head assembly includes a pressure rod, a pressure head, and a pressure cover; the pressure cover is covered on the top of the box body, and the pressure rod and the pressure cover are slidably assembled; the pressure head is located in the box body and fixed to the bottom end of the pressure rod. Under the action of external force, the pressure rod moves up and down, driving the pressure head to move up and down.

[0009] Furthermore, the four side walls of the pressure head are all inclined, forming a structure that is larger at the top and smaller at the bottom. When the pressure head descends, a flow channel that is narrow at the top and wide at the bottom is formed between the inclined structure of the pressure head and the inner wall of the box body, so that the rapeseed oil in the box body can flow smoothly and stably to the retaining wall and contact with the adsorption component for purification.

[0010] Furthermore, the adsorption component includes a track and an adsorption sheet installed on the surface of the track. The raw materials of the adsorption sheet include cellulose nano whiskers and silicate. The mass ratio of cellulose nano whiskers to silicate is 1:10. The cellulose nano whiskers and silicate are first mixed evenly, and then water is added and stirred evenly to form a gel. Finally, a 3D printer is used for extrusion molding to prepare an adsorption sheet with a microporous structure, and a plurality of small cone-shaped barbs are provided on the surface of the adsorption sheet.

[0011] In the above scheme, due to the inclined arrangement of the crawler tracks, only the crawler tracks (adsorption thin plates) at the low position participate in the purification work, while the crawler tracks (adsorption thin plates) at the high position do not contact the rapeseed oil liquid; when the adsorption thin plates at the low position intercept more impurities or have been used for a long time, the crawler tracks can be driven to adjust the original high-position adsorption thin plates to the low position to participate in the purification work, while the original low-position adsorption thin plates are adjusted to the high position for replacement or cleaning.

[0012] The raw materials for preparing the adsorption thin plate include cellulose nanowhiskers and silicate. Silicate has a multi-microporous structure and can adsorb impurities such as phospholipids in rapeseed oil. The cellulose nanowhiskers serve as carriers. The multiple small conical barbs on the surface of the adsorption thin plate and the gaps between the small conical barbs form multiple flow channels, which not only increase the adsorption area, but also extend the residence time of the rapeseed oil liquid on the adsorption thin plate, thereby improving the purification effect.

[0013] Furthermore, a propeller blade is provided at the bottom of the inner cavity of the box, and the propeller blade is located directly below the pressure head assembly. The propeller blade can be controlled by a motor, and by driving the propeller blade, the rapeseed oil liquid in the box is fully stirred, so that the impurities are kept in a suspended state to prevent the impurities from settling, and then sent to the adsorption thin plate for purification through the descending pressure head.

[0014] Furthermore, the top of the retaining wall extends downward with an inclined landslide, and side plates are respectively provided on both sides and the tail end of the landslide to form an impurity collection bucket. When the low-position adsorption sheet intercepts a large number of impurities or has been used for a long time, the crawler can be driven to adjust it to a high position, and an air gun or other method is used to separate the impurities from the adsorption sheet and drop them into the impurity collection bucket.

[0015] The second object of the present invention is to provide a rapeseed oil liquid purification method, which adopts rapeseed oil liquid purification equipment and drives the pressure head assembly to perform reciprocating lifting and lowering motion by external force: when the pressure head of the pressure head assembly descends, the rapeseed oil liquid diffuses and overflows to the four sides of the box body and contacts the adsorption assembly, so that the impurities are intercepted on the adsorption assembly; when the pressure head of the pressure head assembly rises, the rapeseed oil liquid purified by the adsorption assembly falls back into the box body.

[0016] The invention has a simple structure and is easy to operate, and can be used in a small rapeseed oil processing plant. The quality of the rapeseed oil is effectively guaranteed, and the purification efficiency of the rapeseed oil liquid is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a rapeseed oil purification device of the present invention; Figure 2 This is a schematic diagram of the internal structure of the rapeseed oil purification device of the present invention (the front and rear adsorption components and the box body are not shown); Figure 3 It is a structural schematic diagram of a box in the rapeseed oil purification device of the present invention; Figure 4 It is a structural schematic diagram of a pressure head assembly in the rapeseed oil purification device of the present invention; Figure 5 It is a structural schematic diagram of the adsorption component in the rapeseed oil purification device of the present invention; In the figure: box body 1, retaining wall 2, baffle 3, pressure rod 4, pressure head 5, pressure cover 6, crawler track 7, adsorption thin plate 8, barb 9, propeller blade 10, landslide 11, side plate 12. DETAILED DESCRIPTION

[0018] Example 1 A rapeseed oil purification device, comprising: a box 1, a pressure head component, an adsorption component, such as Figure 1 As shown, the box is used to hold the rapeseed oil liquid after pressing. Figure 2 As shown, the pressure head assembly is arranged directly above the box body, and the adsorption assembly is arranged on the top of the four side walls of the box body.

[0019] like Figure 3 As shown, the tops of the four side walls of the box body 1 are respectively provided with obliquely arranged retaining walls 2, and baffles 3 are respectively provided on both sides of the retaining walls.

[0020] like Figure 4 As shown, the pressure head assembly includes a pressure rod 4, a pressure head 5, and a pressure cover 6; the pressure cover is covered on the top of the box body, and the pressure rod and the pressure cover are slidably assembled to ensure that the pressure rod can move up and down; the pressure head is located in the box body and fixed to the bottom of the pressure rod. The four side walls of the pressure head are all inclined, forming a structure with a large top and a small bottom.

[0021] like Figure 5As shown, the adsorption component includes a track 7 and an adsorption sheet 8 installed on the surface of the track. The raw materials of the adsorption sheet include cellulose nano whiskers and silicate. The mass ratio of cellulose nano whiskers to silicate is 1:10. The cellulose nano whiskers and silicate are first mixed evenly, and then water is added and stirred evenly to form a gel. Finally, a 3D printer is used to extrude and mold to prepare an adsorption sheet with a microporous structure, and a plurality of small cone-shaped barbs 9 are provided on the surface of the adsorption sheet.

[0022] like Figure 2 As shown, the inner cavity bottom of the box body is provided with a propeller blade 10, and the propeller blade is located directly below the pressure head assembly. By driving the propeller blade, the rapeseed oil liquid in the box body is fully stirred.

[0023] like Figure 3 As shown, the top of the retaining wall extends downward with an inclined landslide 11, and the two sides and the tail of the landslide are respectively provided with side plates 12 to form an impurity collection bucket. When the low-position adsorption sheet intercepts a large number of impurities or has been used for a long time, the crawler can be driven to adjust it to a high position, and an air gun or other method is used to separate the impurities from the adsorption sheet and drop them into the impurity collection bucket.

[0024] Example 2 A rapeseed oil purification method, using the rapeseed oil purification device in Example 1, driving the pressure head assembly to perform reciprocating lifting motion by external force: When the pressure head of the pressure head assembly drops, a narrow-upper-wide-lower flow channel is formed between the inclined surface structure of the pressure head and the inner wall of the box body, so that the rapeseed oil in the box body can smoothly and stably overflow and flow to the retaining walls on the four sides of the box body, and contact with the adsorption assembly, so that impurities are intercepted on the adsorption assembly; When the pressure head of the pressure head assembly rises, the rapeseed oil liquid purified by the adsorption assembly falls back into the box along the retaining wall; By driving the propeller blades, the rapeseed oil liquid in the box is fully stirred, and the impurities are kept in suspension. In conjunction with the descending pressure head, the impurities are further fully dispersed in the rapeseed oil liquid, and then sent to the adsorption thin plate for purification.

Claims

1. A rapeseed oil purification device, characterized in that: include: A box body, used for containing rapeseed oil liquid after pressing; The pressure head assembly is arranged directly above the box body; Adsorption components are arranged on the top of the four side walls of the box; The pressure head assembly is made to perform reciprocating lifting and lowering motion by external force, so that the rapeseed oil liquid in the box is continuously diffused to four sides and contacts with the adsorption assembly, and the impurities in the rapeseed oil liquid are intercepted on the adsorption assembly.

2. A rapeseed oil purification device according to claim 1, characterized in that: The tops of the four side walls of the box are respectively provided with inclined retaining walls, and baffles are respectively provided on both sides of the retaining walls to prevent rapeseed oil from overflowing; the adsorption component is located above the retaining wall and is arranged parallel to the retaining wall.

3. A rapeseed oil purification device according to claim 1, characterized in that: The pressure head assembly comprises a pressure rod, a pressure head and a pressure cover; the pressure cover is covered on the top of the box body, and the pressure rod and the pressure cover are slidably assembled; the pressure head is located in the box body and fixed to the bottom end of the pressure rod.

4. A rapeseed oil purification device according to claim 3, characterized in that: The four side walls of the pressure head are all inclined surfaces, forming a structure that is larger at the top and smaller at the bottom.

5. A rapeseed oil purification device according to claim 1, characterized in that: The adsorption component comprises a track and an adsorption sheet installed on the surface of the track. The raw materials of the adsorption sheet comprise cellulose nano whiskers and silicate, and are prepared to form a multi-microporous structure.

6. A rapeseed oil purification device according to claim 5, characterized in that: A plurality of small cone-shaped barbs are arranged on the surface of the adsorption thin plate.

7. A rapeseed oil purification device according to claim 1, characterized in that: The bottom of the inner cavity of the box body is provided with a propeller blade, and the propeller blade is located directly below the pressure head assembly.

8. A rapeseed oil purification device according to claim 2, characterized in that: The top of the retaining wall extends downward with an inclined landslide, and both sides and the tail end of the landslide are respectively provided with side plates to form an impurity collecting bucket.

9. A method for purifying rapeseed oil liquid, characterized in that: The rapeseed oil purification device according to any one of claims 1 to 8 is used, and the pressure head assembly is driven by external force to perform reciprocating lifting motion: When the pressure head of the pressure head assembly drops, the rapeseed oil liquid diffuses and overflows to the four sides of the box and contacts the adsorption assembly, so that the impurities are intercepted on the adsorption assembly; when the pressure head of the pressure head assembly rises, the rapeseed oil liquid purified by the adsorption assembly falls back into the box.

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