Oil pressing filtering device

Abstract

The utility model provides an oil pressing filtering device. The oil pressing filtering device comprises a filtering barrel, a filtering assembly, a central column and an oil outlet connector. The filter assembly is provided with a central through hole and comprises a metal support, first filter cloth, a supporting net and second filter cloth which are sequentially stacked, and after a plurality of groups of filter assemblies are sequentially stacked, a metal support is further stacked at the topmost end; the metal support comprises a center block, blank holders with the inner contour larger than that of the supporting net and spokes radially connecting the center block and the blank holders, the blank holders protrude out of the plane where the spokes and the center block are located in the axial direction, and the peripheries of the first filter cloth and the second filter cloth located between the two adjacent layers of blank holders are pressed and sealed; a radial oil hole is also formed in the blank holder; the central column penetrates through the central through hole and clamps and installs the filtering assembly from the two ends, and a clearance space is formed by the central column and the central through hole; the oil outlet connector is installed at one end of the filtering assembly. The filtering device is very convenient to mount, dismount and clean, the efficiency is greatly improved, and the filtering effect is stable.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil pressing equipment technical field, specifically point to a kind of oil pressing filtering device. BACKGROUND

[0002] In the operation process of small commercial oil press, the pressed vegetable oil contains more impurities, and the whole is relatively turbid, which needs to be further filtered to make the oil clear. A kind of oil filtering device adopts sealed filter barrel, and the oil to be filtered is sent into the filter barrel from the oil inlet by pump to form a certain pressure, and then the impurities in the oil are filtered by a plurality of flat filter bag assemblies stacked in the filter barrel. Finally, the filtered oil is discharged from the filter cartridge through an oil outlet interface and an oil pipe. Each filter bag assembly includes two layers of filter cloth, a metal support net wrapped between the two layers of filter cloth, and a hemming device that seals and combines the edges of the two layers of filter cloth. The hemming device includes a metal inner ring and a hemming ring with a C-shaped cross section and an open part. In use, the edges of the two layers of filter cloth are bent and wrapped around the metal inner ring, and then the hemming ring is inserted into the metal inner ring to clamp the edges of the filter cloth between the metal inner ring and the hemming ring. Then the open part of the hemming ring is locked by screws. Finally, an oil outlet interface needs to be installed. Since the filter barrel can stack a large number of such flat filter bag assemblies, the filtering area is increased and the filtering efficiency is improved. However, this structure has the following problems: the two layers of filter cloth must completely wrap the metal filter net to form a bag, the fixing of the two layers of filter cloth and the installation of the oil outlet interface are relatively cumbersome, and the large number of filter bag assemblies makes assembly and disassembly very time-consuming and labor-intensive. Moreover, when the filter cloth is wrapped around the metal inner ring, the mesh size of the filter cloth changes due to different operating forces, which affects the filtering effect. Therefore, there is an urgent need for a filter device that is easy to assemble and disassemble to improve operational convenience and work efficiency and maintain consistent filtering effect. SUMMARY

[0003] The utility model aims at overcoming the deficiencies in the prior art and providing an oil pressing filtering device that is easy to assemble and disassemble.

[0004] To achieve the above-mentioned purpose, the utility model employs the following technical solutions:

[0005] An oil pressing and filtering device comprises a filtering barrel, a top end of which is sealed by a barrel cover to form a sealed space, and is provided with an oil inlet and an oil outlet; a filtering assembly arranged in the filtering barrel, which is provided with a central through hole in the axial direction, and comprises, from bottom to top, a metal support, a first filter cloth, a support net and a second filter cloth, and a plurality of groups of the above are stacked, and a metal support is further stacked at the top end; the metal support comprises a central block provided with the central through hole concentrically, a pressure edge ring with an inner contour larger than the support net, and spokes connecting the central block and the pressure edge ring radially, the pressure edge ring protrudes from the plane where the spokes and the central block are located in the axial direction, and the pressure edge ring of two adjacent layers is arranged to press and seal the circumferential edge of the first filter cloth and the second filter cloth located therebetween; the pressure edge ring is further provided with a radial oil hole; a central column is used to pass through the central through hole and clamp the filtering assembly from both ends, the diameter of the central column is smaller than the central through hole to form a gap space for oil flow; and an oil outlet interface is used to guide the oil in the gap space to the oil outlet; the oil outlet interface is mounted at the center of the top end or the bottom end of the filtering assembly, is in the shape of a cover with one open end, is sealingly arranged on the central column, and the open end is covered outside the gap space and is in communication with the oil outlet through an oil pipe.

[0006] In a preferred embodiment, the filtering assembly and the filtering barrel are arranged concentrically in a circular profile, and the outer circumferential wall of the pressure edge ring and the barrel wall of the filtering barrel have a gap for oil flow.

[0007] In a preferred embodiment, the bottom surface of the metal support is a first plane, the top surface of the central block and the spokes is a second plane parallel to the first plane, and the pressure edge ring protrudes upward in the axial direction from the second plane.

[0008] In a preferred embodiment, the support net is circular and is clamped between the inner side walls of the pressure edge ring, and the top surface is substantially flush with the top surface of the pressure edge ring.

[0009] In a preferred embodiment, the support net is a mesh woven with metal wires and has a certain thickness corresponding to the circumferential edge of the central through hole, and the first filter cloth and the second filter cloth are tightly attached to the surface of the support net by the adjacent two layers of the central block.

[0010] In a preferred embodiment, the bottom end of the central column has a T-shaped head with a diameter larger than the central through hole, and the central column and the filtering barrel are in a split structure.

[0011] In a preferred embodiment, the oil outlet interface is arranged at the top center of the filtering assembly.

[0012] In a preferred embodiment, the oil outlet interface is tightly fixed by a nut abutting against the top surface and threadedly matched with the central column.

[0013] The utility model discloses the beneficial effect lies in: filter assembly is for the lamination installation, and the edge of first filter cloth and second filter cloth is pressed tightly through the edge ring of adjacent two metal supports, and realizes the sealing through the self -weight of lamination and the clamping installation of the both ends of center column, can make first filter cloth, support net and second filter cloth form a filter bag quickly, need not wind edge -to -edge one by one, also can not make the mesh of filter cloth deformation, the clearance space that forms for oil liquid flow is formed between center through -hole and center column, and each sealing bag of close contact unifies from the clearance space and pours out, therefore only needs setting the oil outlet interface in one end of filter assembly, and need not setting the oil outlet interface alone to each filter bag, and the thickness of filter assembly can be set at will according to need, the filter device installation and dismounting cleaning are very convenient, and the efficiency is greatly improved, and the filtering effect is stable. BRIEF DESCRIPTION OF DRAWINGS

[0014] The utility model will be further explained in combination with the specific embodiment and the drawing.

[0015] Figure 1 It is the cross section structure schematic diagram of the filter device whole in the embodiment;

[0016] Figure 2 It is Figure 1 The enlarged view of A part in the middle;

[0017] Figure 3 It is the structure schematic diagram of metal support in the embodiment. PREFERRED EMBODIMENT

[0018] The utility model will be further explained in combination with the specific embodiment and the drawing.

[0019] Reference Figures 1 to 3 The embodiment takes an oil pressing filter device as an example for illustration, the oil liquid pressed out from the oil press is pumped into the filter barrel 1 for filtration, the oil liquid pumped into the filter barrel 1 forms a larger pressure, the pressure forces the oil liquid to penetrate into the filter assembly 2, and the impurities adhere to the outside of the filter assembly 2, completing the filtration, and the filtered oil liquid is delivered out of the filter barrel 1 from the oil outlet interface 4 in the filter assembly 2.

[0020] Specifically, the filtering device comprises a filtering barrel 1, a top end of which forms a sealed space through a barrel cover 11, and is provided with an oil inlet 12 and an oil outlet 13; a filtering assembly 2 arranged in the filtering barrel 1, which is provided with a central through hole 200 in the axial direction, and comprises metal supports 21, first filter cloths 22, support nets 23 and second filter cloths 24 which are sequentially stacked from bottom to top, and the top end of the last group is also stacked with a metal support 21; the metal support 21 comprises a central block 211 provided with the central through hole 200 concentrically, a pressing edge ring 212 with an inner contour larger than the support net 23, and spokes 213 connecting the central block 211 and the pressing edge ring 212 radially, the pressing edge ring 212 protrudes from the plane where the spokes 213 and the central block 211 are located in the axial direction, and makes the adjacent two layers of the pressing edge ring 212 tightly seal the circumferential edges of the first filter cloth 22 and the second filter cloth 24 located therebetween; the pressing edge ring 212 is further provided with radial oil holes 214; a central column 3 is used to pass through the central through hole 200 and clamp the filtering assembly 2 from both ends, specifically, clamping can be achieved by screwing two nuts with a diameter larger than the central through hole 200 on both ends of the central column 3, or the one end of the central column 3 is arranged to be fixed at the bottom of the filtering barrel 1, and the other end is arranged to be limited by a position-adjustable nut, or similar structures; the diameter of the central column 3 is smaller than the central through hole 200 to form a gap space for oil flow; and an oil outlet interface 4 is used to guide the oil in the gap space to the oil outlet 13; the oil outlet interface 4 is installed at the center of the top end or the bottom end of the filtering assembly 2, is a cover-shaped with one end opening, is sealingly and fixedly arranged on the central column 3, and the opening end is covered outside the gap space, and is communicated with the oil outlet 13 through an oil pipe 41.

[0021] The filtering assembly 2 is stacked and installed, and the edges of the first filter cloth 22 and the second filter cloth 24 are tightly pressed by the pressing edge rings 212 of the adjacent two metal supports 21, and are sealed by the self-gravity after stacking and the clamping installation at both ends of the central column 3, so that the first filter cloth 22, the support net 23 and the second filter cloth 24 can quickly form a filtering bag without winding and locking edges one by one, and the mesh of the filter cloth will not be deformed; the oil enters the filtering bag through the radial oil holes 214 on the pressing edge ring 212, and enters the central through hole 200 after being filtered by the first filter cloth 22 and the second filter cloth 24, and the gap space for oil flow is formed between the central through hole 200 and the central column 3, and the tightly contacted sealing bags are uniformly discharged from the gap space, so that only the oil outlet interface 4 needs to be arranged at one end of the filtering assembly 2, and the oil outlet interface 4 does not need to be arranged for each filtering bag, and the thickness of the filtering assembly 2 can be arbitrarily set according to needs; in summary, the filtering device is very convenient to install and disassemble and clean, the efficiency is greatly improved, and the filtering effect is stable.

[0022] In a preferred embodiment, the filter assembly 2 and the filter barrel 1 are concentrically arranged in a circular profile, and the outer peripheral wall of the binder 212 and the barrel wall of the filter barrel 1 have a gap for the flow of oil.

[0023] In a preferred embodiment, the bottom surface of the metal support 21 is a first plane, the top surface of the center block 211 and the spoke 213 is a second plane parallel to the first plane, and the binder 212 protrudes axially upward from the second plane. The binder 212 of the adjacent two metal supports 21 clamps the edges of the first filter cloth 22 and the second filter cloth 24, which can ensure the sealing of the edges of the first filter cloth 22 and the second filter cloth 24, thereby forming a reliable filter bag; the mating surfaces of the adjacent two binders 212 can be arranged as mutually adhering planes, concave-convex surfaces, etc., which aims to clamp the first filter cloth 22 and the second filter cloth 24. In other embodiments, the binder 212 of the metal support 21 can also protrude downward from the first plane simultaneously or individually, and the bottom surface is also a plane.

[0024] In a preferred embodiment, the support net 23 is circular and is adaptively clamped between the inner side walls of the binder 212, and the top surface is substantially flush with the top surface of the binder 212. The support net 23 is adaptively clamped between the inner side walls of the binder 212, and the top surface is flush with the top surface of the binder 212, which can ensure that the first filter cloth 22 and the second filter cloth 24 are adhered to the surface of the support net 23, thereby avoiding deformation affecting the filtering effect.

[0025] In a preferred embodiment, the support net 23 is a metal wire woven net with a certain thickness, corresponding to the circumferential edge of the center through hole 200, and the first filter cloth 22 and the second filter cloth 24 are pressed and adhered to the surface of the support net 23 by the adjacent two center blocks 211. The metal wire woven support net 23 has a gap for the radial flow of oil, so that the oil filtered from the first filter cloth 22 and the second filter cloth 24 flows radially into the center through hole 200. The support net 23 functions to support the first filter cloth 22 and the second filter cloth 24 to avoid deformation, and provides a gap for the radial flow of oil. In other embodiments, the support net 23 can also be at least two layers of honeycomb mesh plates, and the hole positions of the two layers of mesh plates are offset, which also has the same function.

[0026] In a preferred embodiment, the bottom end of the center column 3 has a T-shaped head 31 with a diameter larger than the center through hole 200, and is in a split structure with the filter barrel 1. The filter assembly 2 can be pulled out of the filter barrel 1 as a whole through the center column 3, further facilitating installation and disassembly and cleaning. Further, the oil outlet 4 is arranged at the top center of the filter assembly 2. At this time, the T-shaped head 31 can block the gap space at the bottom end of the filter assembly 2, so that the filtered oil can only flow upward into the oil outlet 4, and the oil outlet 4 and the T-shaped head 31 jointly form clamping installation of the filter assembly 2.

[0027] In a preferred embodiment, the oil outlet 4 is fixed by a nut 32 abutting against the top surface and threadedly matched with the center column 3. At this time, the oil outlet 4 and the center column 3 mainly form a sealing fit. In other embodiments, the oil outlet 4 can also be directly threadedly matched with the center column 3 to achieve fixation.

[0028] The above description is not intended to limit the technical scope of the present application in any way, and any modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application still belong to the technical scope of the present application.

Claims

1. An oil expelling and filtering apparatus, characterized in that, The application relates to a filter assembly and a filter barrel. The filter barrel is provided with an oil inlet and an oil outlet. The filter assembly is arranged in the filter barrel and comprises a metal support, a first filter cloth, a supporting net and a second filter cloth which are stacked in sequence from bottom to top. The metal support comprises a center block, a pressing ring and a spoke. The center column is arranged through the center hole and clamped to the filter assembly from both ends.

2. A device for filtering oil expressed from oilseeds as claimed in claim 1, wherein: The center column has a diameter smaller than the center hole to form a gap space for oil flow.

3. A device for filtering oil expressed from oilseeds as claimed in claim 2, wherein: The oil outlet interface is arranged at the center of the top end of the filter assembly.

4. A device for filtering oil expressed from oilseeds as claimed in claim 3, wherein: The oil outlet interface is fixed by a nut screwed with the center column.

5. A device for filtering oil expressed from oilseeds as claimed in claim 4, wherein: ​ 6. A device for filtering oil according to claim 1, characterized in that: ​ 7. A device for filtering oil expressed from oilseeds as claimed in claim 6, wherein: ​ 8. A device for filtering oil expressed from oilseeds as claimed in claim 7, wherein: ​

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