Low-temperature secondary oil pressing device

Abstract

The utility model discloses a low-temperature secondary oil pressing device, belongs to the technical field of food processing, and aims to solve the problems that the oil extraction rate of a traditional oil pressing technology is low, nutritional ingredients of oil are damaged by high-temperature oil pressing, harmful substances are generated and the like. The top of the oil storage assembly is provided with a filter plate separation assembly, and the filter plate separation assembly comprises a hydraulic cylinder body, a hydraulic output rod, a lifting plate, a limiting rod, a separation column, a filter pressing plate body, an inverted triangular groove and an oil outlet groove; the hydraulic cylinder body is arranged at the top of the hydraulic oil pressing mechanism, the bottom of a hydraulic output rod is fixedly connected with a lifting plate, a limiting rod is arranged at the top of the lifting plate, a plurality of separation columns are fixedly installed at the bottom of the lifting plate, the bottoms of the separation columns are movably connected with a filter pressing plate body, and inverted triangular grooves are formed in the two sides of the top of the filter pressing plate body. Oil outlet grooves are formed in the two sides of the bottom, and semi-cylindrical filter pressing grooves are formed in the two side walls.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the food processing technical field, concretely relates to a low temperature secondary oil extraction device. BACKGROUND

[0002] In the edible oil production field, the traditional oil extraction technology mainly adopts the way of once pressing. Although this way is relatively simple to operate, it has the problem of low oil yield. After the oil material is once pressed, a large amount of oil remains in the oil residue, which cannot be fully extracted, causing waste of resources. For some oil-rich oil crop, the oil content in the residue after once pressing may still reach 10%-20%, which not only reduces the production efficiency, but also increases the production cost.

[0003] The existing patent (announcement number: CN209699919U) discloses a low-temperature secondary oil extraction device with spiral lifting function, which comprises a bottom plate, a device body connected to the top of the bottom plate through a support, an inlet hopper welded to the top of the device body, a partition plate welded to the inside of the device body, a filter plate welded to the lower part of the inside of the device body, a liquid discharge valve welded to the lower part of the outer wall of the device body, a secondary oil extraction pipe welded to one side of the device body, a motor fixed to one side of the partition plate through a rack, and an oil extraction roller shaft connected to one end of the output shaft of the motor penetrating the partition plate. In the utility model, the device is provided with a condensation interlayer in the inner wall of the secondary oil extraction pipe, and the secondary oil extraction pipe is subjected to condensation treatment by filling the condensation interlayer with condensate. The temperature generated in the oil extraction process is reduced, so that the inside of the secondary oil extraction pipe is always in a low-temperature state, the retention of the nutritional ingredients of the oil material is ensured, and the quality of the oil material is improved.

[0004] In view of the above-mentioned related technology, the inventors find that the above-mentioned device mainly separates oil liquid by the filter plate, but the filtering effect of the filter plate is limited, especially when processing oil material with high oil content, the filter plate is prone to be blocked, which affects the oil extraction efficiency, and the structure is complex and inconvenient to maintain. The device adopts a spiral lifting mechanism and a condensation interlayer, which has a relatively complex structure, increases the manufacturing cost and maintenance difficulty of the equipment. Especially in the maintenance and cleaning of the condensation interlayer, the operation is relatively cumbersome, the filter plate design of the device is relatively simple, the oil liquid separation effect is not ideal, and a large amount of impurities are easily left in the oil liquid, which affects the purity of the oil product. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a low-temperature secondary oil extraction device to solve the problems in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: comprising an oil storage assembly, one side of the oil storage assembly is provided with a hydraulic oil extraction mechanism, and the top of the oil storage assembly is provided with a filter plate separation assembly.

[0007] The filter plate separation assembly comprises a hydraulic cylinder body, a hydraulic output rod, a lifting plate, a limiting rod, a separation column, a filter plate body, an inverted triangular groove and an oil outlet groove; the hydraulic cylinder body is arranged at the top of a hydraulic oil pressing mechanism, the bottom of the hydraulic output rod is fixedly connected with the lifting plate, the top of the lifting plate is provided with the limiting rod, the bottom of the lifting plate is fixedly provided with a plurality of separation columns, the bottom of the separation column is movably connected with the filter plate body, the top of the filter plate body is provided with the inverted triangular groove on both sides, the bottom of the filter plate body is provided with the oil outlet groove on both sides, and the two side walls are provided with a semicylindrical filter groove.

[0008] It should be noted that, through the above scheme, the filter plate separation assembly can drive the filter plate body to perform a pressing action under the drive of the hydraulic cylinder body, and the semicylindrical filter groove is used for secondary pressing of oil, and the inverted triangular groove and the oil outlet groove are used for collecting and discharging oil.

[0009] Further, the filter plate separation assembly further comprises a positioning seat, a top plate, a sliding sleeve and a sliding rod; the positioning seat is fixedly installed on the top of the first positioning plate and the second positioning plate of an oil storage assembly, the top plate is fixed on the positioning seat through bolts; the sliding rod is fixed transversely between the first positioning plate and the second positioning plate, and the sliding sleeve is movably sleeved on the sliding rod and fixedly connected with the filter plate body on both sides.

[0010] Further, the filter plate separation assembly further comprises a positioning seat, a top plate, a sliding sleeve and a sliding rod; the positioning seat is fixedly installed on the top of the first positioning plate and the second positioning plate of an oil storage assembly, the top plate is fixed on the positioning seat through bolts; the sliding rod is fixed transversely between the first positioning plate and the second positioning plate, and the sliding sleeve is movably sleeved on the sliding rod and fixedly connected with the filter plate body on both sides.

[0011] As a preferred embodiment, the oil storage assembly comprises a coarse filter oil pool, a fine filter oil pool, an oil pumping pipe, a first positioning plate, a side plate, a second positioning plate and a filter screen; the coarse filter oil pool is located directly below the filter plate body and is communicated with the fine filter oil pool through the filter screen; the first positioning plate and the second positioning plate are respectively fixed vertically on both sides of the top of the coarse filter oil pool and are bolted through the side plate; and the oil pumping pipe is fixed outside the fine filter oil pool.

[0012] Through the above scheme, the oil storage assembly realizes the functions of coarse filtering and fine filtering of pressed oil, the coarse filter oil pool receives the oil discharged from the filter plate body, the oil flows into the fine filter oil pool after being filtered through the filter screen, and finally the fine filtered oil is pumped out through the oil pumping pipe, thereby completing the whole oil storage and filtering process.

[0013] As a preferred embodiment, the sliding sleeve is embedded with a self-lubricating bearing, forms a sliding pair track with the sliding rod, and the sliding rod is provided with a limiting block at both ends to prevent the sliding sleeve from falling out.

[0014] Through the above scheme, the self-lubricating bearing reduces the friction between the sliding sleeve and the sliding rod, improves the smoothness of sliding and the service life of the parts, and the limiting block ensures the effective stroke of the sliding sleeve on the sliding rod, avoids the device failure caused by the sliding sleeve out of the sliding rod.

[0015] As a preferred embodiment, the filter screen is obliquely arranged at the joint of the coarse filter oil pool and the fine filter oil pool, the inclination angle is 15-30 degrees, and the surface is provided with gradient filter pore diameter.

[0016] Through the above scheme, the obliquely arranged filter screen is beneficial to the flow of oil and the precipitation of impurities, the gradient filter pore diameter can perform graded filtration according to the size of impurities in the oil, improve the filtration efficiency and filtration effect, and ensure the quality of oil entering the fine filter oil pool.

[0017] As a preferred embodiment, the semi-cylindrical filter slots are equidistantly arranged along the length direction of the filter plate body, the slots are provided with spiral oil guiding lines, and the slot depth gradually increases from the top to the bottom.

[0018] Through the above scheme, the equidistantly arranged semi-cylindrical filter slots can uniformly squeeze the oil, the spiral oil guiding lines help guide the squeezed oil to flow to the inverted triangular slot, and the design that the slot depth gradually increases from the top to the bottom makes the oil more easily flow out during the squeezing process, thereby improving the oil discharge efficiency.

[0019] As a preferred embodiment, the inverted triangular slot and the oil outlet groove are communicated through an internal flow guide channel, and a detachable anti-blocking filter plate is arranged at the outlet of the oil outlet groove.

[0020] Through the above scheme, the internal flow guide channel ensures that the oil can smoothly flow from the inverted triangular slot to the oil outlet groove, the detachable anti-blocking filter plate can prevent impurities from blocking the outlet of the oil outlet groove, and at the same time, it is convenient for cleaning and replacement, thereby ensuring the smoothness of oil discharge.

[0021] Compared with the prior art, the low-temperature secondary oil pressing device provided by the utility model has at least the following beneficial effects:

[0022] (1) The low-temperature secondary oil pressing device combines the oil storage assembly, the hydraulic oil pressing mechanism and the filter plate separation assembly organically. The hydraulic oil pressing mechanism can preliminarily press the oil, the filter plate separation assembly can perform secondary pressing, and the oil storage assembly is responsible for storing and filtering the squeezed oil, so that integrated operation from oil pressing to oil collection and filtration is realized, and the oil pressing efficiency and quality are improved.

[0023] (2) The hydraulic output rod is driven by the hydraulic cylinder body, the lifting plate and the separation column are driven, and the filter plate body is pressed. The semicylindrical filter grooves on the two side walls of the filter plate body can effectively increase the contact area with the oil and improve the pressing efficiency, realize the secondary pressing of the oil, and further extract the oil in the oil. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is the schematic diagram of the overall structure of the device in the embodiment of the application;

[0025] Figure 2 is the schematic diagram of the local structure of the device in the embodiment of the application;

[0026] Figure 3 is the schematic diagram of the local structure of the filter plate separation assembly in the embodiment of the application;

[0027] Figure 4 is the schematic diagram of the local structure of the filter plate separation assembly in the embodiment of the application.

[0028] In the drawings:

[0029] 100, oil storage assembly; 101, coarse filter oil pool; 102, fine filter oil pool; 103, oil pumping pipe; 104, first positioning plate; 105, side plate; 106, second positioning plate; 107, filter screen;

[0030] 200, hydraulic oil pressing mechanism;

[0031] 300, filter plate separation assembly; 301, positioning seat; 302, top plate; 303, hydraulic cylinder body; 304, hydraulic output rod; 305, lifting plate; 306, limiting rod; 307, separation column; 308, filter plate body; 309, inverted triangular groove; 310, oil outlet groove; 311, sliding sleeve; 312, sliding rod. DETAILED DESCRIPTION

[0032] Please refer to Figures 1-4 The utility model provides a low temperature secondary oil pressing device, including oil storage assembly 100, one side of oil storage assembly 100 is provided with hydraulic oil pressing mechanism 200, and the top of oil storage assembly 100 is provided with filter plate separation assembly 300;

[0033] Please refer to Figure 2 and Figure 3The oil storage assembly 100 comprises a coarse oil filter tank 101, a fine oil filter tank 102, an oil pumping pipe 103, a first positioning plate 104, a side plate 105, a second positioning plate 106 and a filter screen 107; the coarse oil filter tank 101 is located directly below the filter plate body 308 and is in communication with the fine oil filter tank 102 through the filter screen 107; the first positioning plate 104 and the second positioning plate 106 are vertically fixed on the top of the two sides of the coarse oil filter tank 101 respectively and are bolted through the side plate 105; and the oil pumping pipe 103 is fixed outside the fine oil filter tank 102. The filter screen 107 is obliquely arranged at the joint of the coarse oil filter tank 101 and the fine oil filter tank 102, the oblique angle is 15°-30°, and the surface is provided with gradient filtering pore diameters.

[0034] Please refer to Figure 2 , Figure 3 and Figure 4 , the filter plate separation assembly 300 comprises a hydraulic cylinder body 303, a hydraulic output rod 304, a lifting plate 305, a limiting rod 306, a separation column 307, a filter plate body 308, an inverted triangular groove 309 and an oil outlet groove 310; the hydraulic cylinder body 303 is arranged at the top of the hydraulic oil pressing mechanism 200, the bottom of the hydraulic output rod 304 is fixedly connected with the lifting plate 305, the top of the lifting plate 305 is provided with the limiting rod 306, the bottom of the lifting plate 305 is fixedly installed with a plurality of separation columns 307, the bottom of the separation column 307 is movably connected with the filter plate body 308, the top of the filter plate body 308 is provided with the inverted triangular groove 309 on the two sides, the bottom is provided with the oil outlet groove 310 on the two sides, and the two side walls are provided with semicylindrical filter grooves.

[0035] The filter plate separation assembly 300 further comprises a positioning seat 301, a top plate 302, a sliding sleeve 311 and a sliding rod 312; the positioning seat 301 is fixedly installed on the top of the first positioning plate 104 and the second positioning plate 106 of the oil storage assembly 100, and the top plate 302 is fixed on the positioning seat 301 through bolts; the sliding rod 312 is transversely fixed between the first positioning plate 104 and the second positioning plate 106, and the sliding sleeve 311 is movably sleeved on the sliding rod 312 and is fixedly connected with the two sides of the filter plate body 308.

[0036] The sliding sleeve 311 is embedded with a self-lubricating bearing, forms a sliding pair track with the sliding rod 312, and the two ends of the sliding rod 312 are provided with limiting blocks to prevent the sliding sleeve 311 from falling out.

[0037] The semicylindrical filter grooves are equidistantly arranged along the length direction of the filter plate body 308, the grooves are provided with spiral oil guiding lines, and the groove depth gradually increases from the top to the bottom.

[0038] The inverted triangular groove 309 and the oil outlet groove 310 are in communication through an internal flow guide channel, and the oil outlet groove 310 is provided with a detachable anti-blocking filter sheet at the outlet.

[0039] In terms of oil separation, the filter plate separation assembly 300 can smoothly collect and discharge the pressed oil, the inverted triangular grooves 309 on both sides of the top of the filter plate body 308 are used to collect oil, and the oil outlet grooves 310 on both sides of the bottom are connected through the internal flow guide channel to enable the oil to be smoothly discharged from the pressing area, and the detachable anti-blocking filter at the outlet of the oil outlet groove 310 can prevent impurities from blocking the oil outlet channel, ensuring the smoothness of oil discharge. In addition, the positioning seat 301, the top plate 302, the sliding sleeve 311 and the sliding rod 312 provide stable support and guidance for the movement of the filter plate body 308, ensuring the stable operation of the entire pressing and oil separation process

[0040] The present scheme has the following working process:

[0041] Firstly, the oil material to be pressed is placed in the hydraulic oil pressing mechanism 200, and the hydraulic oil pressing mechanism 200 starts to work to provide strong pressure to the oil material for the first pressing. Under the action of strong pressure, part of the oil is squeezed out of the oil material, and the separation of oil from the oil material is initially achieved.

[0042] Secondly, the oil residue after the first pressing is transported between the filter plate bodies 308 of the filter plate separation assembly 300. At this time, the hydraulic cylinder body 303 starts to work to drive the hydraulic output rod 304 to move downward, and the lifting plate 305 fixedly connected with the hydraulic output rod 304 moves downward. Since the lifting plate 305 is fixedly installed with a plurality of separation columns 307 at the bottom, and the separation columns 307 are movably connected with the filter plate body 308 at the bottom, the downward movement of the lifting plate 305 will drive the filter plate body 308 to gradually close.

[0043] Then, as the filter plate body 308 closes, the semicylindrical filter grooves on its two sides tightly press the oil residue. The semicylindrical filter grooves are equidistantly arranged along the length direction of the filter plate body 308. The design of the spiral oil guide lines in the grooves and the gradually increasing groove depth from the top to the bottom enables the oil to be more efficiently squeezed out during the pressing process. At the same time, the sliding sleeve 311 slides on the sliding rod 312 to ensure the stability and accuracy of the movement of the filter plate body 308, so that the secondary pressing process proceeds smoothly.

[0044] Next, the pressed oil flows into the inverted triangular grooves 309 on both sides of the top of the filter plate body 308. The inverted triangular grooves 309 are connected with the oil outlet grooves 310 on both sides of the bottom through the internal flow guide channel. The oil flows to the oil outlet grooves 310 through the flow guide channel. The detachable anti-blocking filter at the outlet of the oil outlet groove 310 preliminarily filters the oil to prevent large particles from entering the subsequent process. Then, the oil is discharged from the oil outlet groove 310 and directly falls into the coarse filter oil pool 101 below.

[0045] Finally, the oil liquid falling into the coarse filter oil pool 101 flows to the filter screen 107 arranged obliquely under the action of gravity, the gradient filter aperture on the surface of the filter screen 107 finely filters the oil liquid, further removes impurities therein, the filtered oil liquid flows into the fine filter oil pool 102, and finally the filtered oil liquid is pumped out through the oil pumping pipe 103 fixed outside the fine filter oil pool 102, thus completing the whole oil pressing process.

[0046] In summary, the low-temperature secondary oil pressing device in the embodiment has organically combined the oil storage assembly 100, the hydraulic oil pressing mechanism 200 and the filter plate separation assembly 300. The hydraulic oil pressing mechanism 200 can preliminarily press the oil material, the filter plate separation assembly 300 can secondarily press, and the oil storage assembly 100 is responsible for storing and filtering the pressed oil liquid, thus realizing the integrated operation from oil material pressing to oil liquid collection and filtration and improving the efficiency and quality of oil pressing. The hydraulic cylinder body 303 drives the hydraulic output rod 304, drives the lifting plate 305 and the separation column 307 to make the filter plate body 308 perform the pressing action. The semicylindrical filter grooves on the two side walls of the filter plate body 308 can effectively increase the contact area with the oil material, improve the pressing efficiency, realize the secondary pressing of the oil material and further extract the oil in the oil material.

[0047] It should be noted that, in terms of pressing, the filter plate separation assembly 300 can realize efficient secondary pressing, and the core component is the filter plate body 308, the two side walls are provided with semicylindrical filter grooves, when the hydraulic cylinder body 303 drives the hydraulic output rod 304, drives the lifting plate 305 and the separation column 307 to make the filter plate body 308 perform the pressing action, the semicylindrical filter grooves can effectively increase the contact area with the oil material, improve the pressing efficiency, and moreover, the semicylindrical filter grooves are equidistantly arranged along the length direction of the filter plate body 308, the grooves are provided with spiral oil guiding lines, and the groove depth gradually increases from the top to the bottom, these designs make the oil material be better extruded in the pressing process, and the spiral oil guiding lines help guide the pressed oil liquid to the inverted triangular groove 309, further improve the oil extraction efficiency.

[0048] 303、The hydraulic cylinder body, 200, the hydraulic oil pressing mechanism can be purchased in the market, and belongs to mature technology in the field, which has been fully disclosed, so the specification will not be repeated.

[0049] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A low-temperature secondary oil pressing device, comprising an oil storage assembly (100), characterized in that: A hydraulic oil pressing mechanism (200) is provided on one side of the oil storage assembly (100), and a filter plate separation assembly (300) is provided on the top of the oil storage assembly (100). The filter plate separation assembly (300) includes a hydraulic cylinder body (303), a hydraulic output rod (304), a lifting plate (305), a limiting rod (306), separation columns (307), a filter plate body (308), an inverted triangular groove (309), and an oil outlet groove (310). The hydraulic cylinder body (303) is located on the top of the hydraulic oil pressing mechanism (200). The bottom of the hydraulic output rod (304) is fixedly connected to the lifting plate (305). The top of the lifting plate (305) is provided with a limiting rod (306). Multiple separation columns (307) are fixedly installed on the bottom of the lifting plate (305). The bottom of the separation columns (307) is movably connected to the filter plate body (308). The top two sides of the filter plate body (308) are provided with inverted triangular grooves (309), the bottom two sides are provided with oil outlet grooves (310), and the two side walls are provided with semi-cylindrical filter grooves.

2. The low-temperature secondary oil pressing device according to claim 1, characterized in that: The filter plate separation assembly (300) further includes a positioning seat (301), a top plate (302), a sliding sleeve (311), and a sliding rod (312); the positioning seat (301) is fixedly installed on the top of the first positioning plate (104) and the second positioning plate (106) of the oil storage assembly (100), and the top plate (302) is fixed to the positioning seat (301) by bolts; the sliding rod (312) is horizontally fixed between the first positioning plate (104) and the second positioning plate (106), and the sliding sleeve (311) is movably sleeved on the sliding rod (312) and fixedly connected to both sides of the filter plate body (308).

3. The low-temperature secondary oil pressing device according to claim 1, characterized in that: The oil storage assembly (100) includes a coarse oil filter tank (101), a fine oil filter tank (102), an oil extraction pipe (103), a first positioning plate (104), a side plate (105), a second positioning plate (106), and a filter screen (107). The coarse oil filter tank (101) is located directly below the filter press plate body (308) and is connected to the fine oil filter tank (102) through the filter screen (107). The first positioning plate (104) and the second positioning plate (106) are respectively vertically fixed on both sides of the top of the coarse oil filter tank (101) and are bolted together through the side plate (105). The oil extraction pipe (103) is fixed to the outside of the fine oil filter tank (102).

4. The low-temperature secondary oil pressing device according to claim 2, characterized in that: The sliding sleeve (311) is embedded with a self-lubricating bearing, forming a sliding sub-rail with the sliding rod (312), and the sliding rod (312) is provided with limit blocks at both ends to prevent the sliding sleeve (311) from falling out.

5. The low-temperature secondary oil pressing apparatus according to claim 3, characterized in that: The filter screen (107) is inclined at the junction of the coarse oil filter tank (101) and the fine oil filter tank (102), with an inclination angle of 15°-30° and a gradient filter pore size on its surface.

6. The low-temperature secondary oil pressing apparatus according to claim 1, characterized in that: The semi-cylindrical filter press grooves are arranged at equal intervals along the length of the filter press plate body (308), and the grooves are provided with spiral oil guiding patterns. The groove depth gradually increases from the top to the bottom.

7. The low-temperature secondary oil pressing apparatus according to claim 1, characterized in that: The inverted triangular groove (309) is connected to the oil outlet groove (310) through an internal guide channel, and a detachable anti-clogging filter is provided at the outlet of the oil outlet groove (310).

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