JPS61259719A - Filter for oil purifier - Google Patents

Abstract

PURPOSE:To prevent the pulverization and leakage of activated carbon, by surrounding activated carbon by a soft nonwoven fabric having meshes finer than the particle size of activated carbon. CONSTITUTION:Activated carbon 33 is received in an oil-purifying case 30 having a bottomed cylindrical shape made of a metal such as aluminum and a bottom surface provided with a large number of apertures so as to be held between nonwoven fabric filters 31, 32 made of polyester from above and below and a perforated upper plate 34 such as a punching metal is fixed to the upper surface opening of the oil-purifying case 30 by caulking. Each of nonwoven fabric filters 31, 32 preferably has meshes finer than the particle size of activated carbon 33. The peripheral edges of the nonwoven fabric filters 31, 32 are provided to the oil-purifying case 30 in a caulking state and the outflow of activated carbon from the gap between both of them is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field 1] The present invention relates to a filter for an oil purifier that removes coloring, odor, etc. from contaminated edible oil such as tempura oil that has been used or is in the process of being used.

[Background Art] Activated carbon is used to remove oil coloring, depth, etc., as shown in Utility Model Application Publication No. 54-159280. If these particles get mixed into the purified oil, it becomes impossible to reuse the oil. For this reason, in the structure disclosed in the above publication, a porous support layer is interposed and the activated carbon is supported by a support part, and the porous support layer prevents the activated carbon from leaking. If the thickness is not considerably thick, it will not be possible to reliably prevent the activated carbon from leaking, and in addition, with a porous support layer, the activated carbon will jump due to vibrations or shocks applied during transportation or use, causing a risk of contact with the support layer. There was a high possibility that the activated carbon would be pulverized by the collision and leaked into the purified oil.

[Objective of the Invention 1 The present invention was made in view of the above situation, and its purpose is to provide a filter for an oil purifier that will prevent activated carbon from leaking and being mixed into purified oil. It is on offer.

[Disclosure of the Invention] The present invention is characterized in that activated carbon is surrounded by a nonwoven fabric whose particle size is finer than that of the activated carbon,
By surrounding the activated carbon with a fine and soft non-woven fabric, leakage of the activated carbon is prevented and pulverization of the activated carbon is suppressed.

The present invention will be described in detail below based on the illustrated embodiment. The filter 3 herein is configured as a cartridge having activated carbon 33 as a main member for filtration, as shown in FIGS. 1 and 2. Activated carbon 33 is stored in an oil purifying case 30 made of a metal such as aluminum and having a cylindrical shape with a bottom and having many holes in the bottom, with the upper and lower sides sandwiched between nonwoven fabric filters 31 and 32 made of polyester or the like. At the same time, it is formed by caulking and fixing a perforated upper plate 34 such as punched metal to the upper opening of the oil purifying case 30.

The nonwoven fabric filters 31 and 32 have activated carbon 33.
It has a mesh that is finer than the particle size of the activated carbon 33, and is provided to prevent the activated carbon 33 from flowing out.
Both of the nonwoven fabric filters 31 and 32 here have their peripheries caulked to the oil purification case 30, thereby making the nonwoven fabric filters 31, 32 and the oil purification case 3
The activated carbon 33 may leak out from the gap between the
Oil is prevented from flowing away without passing through the non-woven filters 31, 32. In addition, when crimping and fixing the woven fabric filters 31 and 32, as shown in FIGS. After caulking the activated carbon 33 by squeezing it inward, and then inserting the activated carbon 33 up to the step 36 of the oil purifying case 30, as shown in Fig. 2(c).
As shown in d), the nonwoven fabric filter 31 is caulked together with the upper plate 34 at the stepped portion 36, and along with this caulking, the nonwoven fabric filter 31. 32 compresses the activated carbon 33 between them, suppresses unnecessary movement of the activated carbon 33, and prevents the activated carbon 33 from being pulverized due to the activated carbon 33 rubbing against each other. Finely powdered activated carbon 3
3 from leaking out through the nonwoven fabric filters 31 and 32 and being mixed into the oil, and also prevents the oil from short-passing, thereby improving filtration performance.

I! Figures S3 and 4 show an oil purifier using the filter 3 described above. This is a container 5 which has a bottomed cylindrical shape and has a lid 4 attached to its top opening, and in addition to the filter 3 described above, a filter 1.degree. Then, this is formed into a bottomed cylinder shape by press-fitting and welding a disc that will serve as the bottom plate to the bottom of the cylindrical body with the part that will become the spout bulging outside, and is made of stainless steel, aluminum, etc. Made of metal,
A pedestal 6 is attached to the lower surface of the bottom plate, and a handle 7 is attached to the side of the peripheral surface opposite to the portion where the bulging portion 54 serving as the pouring spout is formed.

The pedestal 6, which is made of synthetic resin, has a bottom metal plate on the bottom surface of the bottom plate of the container 5! Attached via 4:60. The bottom plate metal fitting 60 has a hole 66 that engages with a positioning protrusion 6'5 protruding from the bottom surface of the bottom plate of the container 5, and has several countersink parts 67 that are locally female-twisted in the center part. is equipped with a fitting hole 68,
The pedestal 6, which is positioned by fitting the protrusion 61 of the pedestal 6 into the fitting hole 68, is attached to the container 5 via the bottom plate fitting 6o by the screw 69 screwed into the counter sink part 67. Fixed.

The handle 7 is composed of a main body 7° and a cover 71, both of which are made of composite tJjm, and includes a pair of upper and lower handle metals p.
It is attached to the container 5 via c76.76. Each handle metal fitting 76 has its base end fixedly welded to the container 5 and has a countersink part 77 with an internal thread cut on the distal end surface, and the main body part 70 is attached to the handle by the fitting 8. A cover 71 is attached to the main body part 70 with a fastener 9. Here, the main body 70 has a pair of upper and lower handle fittings 7.
6.76 The space where the fingers are inserted f) Q7
4, and a partition piece 72 formed integrally with the main body 70 is provided between this space and the outer peripheral surface of the container 5.
is positioned so that the fingers gripping the handle 7 do not come into contact with the outer peripheral surface of the container 5, and the partition piece 7
2 itself does not come into contact with the outer circumferential surface of the container 5, leaving a heat insulating space 73 in between, so even when there is hot oil in the container 5, your fingers and fingers holding the handle 7 will not get burned. Or,
I am made not to have any passionate feelings. Furthermore, the upper end of the handle 7 forms a space 75 that is open upward and to both sides with respect to the outer peripheral surface of the container 5 above the upper handle fitting 76. The knob 14 on the filter 1 of
It is possible to keep it within 5.

Next, the structure of the container 5 will be explained. This container 5, which has a cylindrical shape with a bottom and a spout portion formed as a bulging portion 54, has a circular ring body 5 made of metal such as stainless steel or aluminum along its upper inner circumferential surface.
0 is fixed, and an oil filler fitting 55 is removably inserted into the spout. The ring body 50 has two upper and lower annular protrusions 51 and 52 and a plurality of protrusions (not shown) located above the annular protrusions 51 and 52 that protrude inward. The upper annular projection 51 has a trapezoidal cross section, the lower annular projection 52 has a semicircular cross section, and the ring body 50 surrounds the upper space of the container 5 horizontally. A part with a circular cross section,
It is partitioned into a spout portion formed as a bulge 54. Note that the upper end of the container 5 and the upper end of the ring body 50 are cut out at the portions facing the space 75 of the handle 7.

The bulging part 54 serving as a spout is formed from a position slightly below the vertical center of the container 5 to the upper end of the container 5, and the upper end is cut off diagonally. The oil filler fitting 55 is inserted therein as described above. This oil filler fitting 55 is inserted until its lower end comes into contact with a protrusion 56 protruding from the inner surface of the bulging WS 34.
The horizontal cross section is semicircular, and the curvature in the horizontal cross section increases upwardly.
When inserted into the spout, it protrudes above the upper end of the bulged portion 54 cut off as described above, and creates a gap 57 between it and the inner surface of the bulged portion 546. The top i of the container 5 formed as follows [lid 4 that closes the mouth]
is composed of two parts: a main strain 40 and an oil filling lid 41.

The main fi 40 has a seal ring 42 attached to its outer circumferential surface that is in contact with the inner circumferential surface of the ring body 50, and is attached to the protrusion in the ring body 50 by fitting into the ring body 50 and rotating the seal ring 42. A plurality of engaging grooves (not shown) are formed on the outer circumferential surface, and a pair of semicircular recesses, which are deeper at the center side, are provided at intervals on the upper surface. It has a knob 44 formed between the recesses, and a recess 45 at one end of the knob 44 on the top surface.

The base end of the oil filler lid 41 is pivotally supported by the main strain 40, and one end of a spring 46 made of stainless steel or the like arranged in a recess 45 of the main strain 40 is locked to the lower surface of the oil filler lid 41. When the oil filler lid 41 is tilted down, the spout is closed to prevent dirt, dust, insects, etc. from entering, and when the oil filler lid 41 is raised, the spout is opened. The opening and closing of the pouring spout is performed by reversing the biasing direction of the spring 46, which is bent in the middle, so that the oil filler lid 41 is biased in both directions at the midpoint of the tilting angle range. In other words, both the state in which the spout is closed and the state in which the spout is open are held by the spring 46.In addition to the filter 3, there are two types of filters 1 and 2 in the container 5. However, filter 1
This is constructed by arranging a wire mesh 11 of 30 to 40 meshes in the lower opening of an inverted conical case 1o made of metal such as stainless steel or aluminum, and a wire mesh handle 13 provided with the knob 14. is attached by welding. Note that the knob 14 is made of synthetic resin, heat-resistant rubber, or the like. The filter 2 is formed by molding paper into a cylindrical shape with a bottom, and in particular has many fir folds formed on the circumference. are arranged and housed in the container 5.

The case 8 is housed in the container 5 by having its upper edge locked onto the annular protrusion 51 of the ring body 50, and has an arc-shaped hanger 81 attached to the upper part.
A small diameter cylindrical portion 83 is formed at the lower part via a tapered surface 82, and an annular packing 84 having oil resistance is installed on the inner surface of this small diameter cylindrical portion 83. The filter 3 formed as a cartridge is housed in a case 8 from above, and is arranged in a small diameter cylindrical part 83 by bringing the 7 run part at the upper end of the oil purifying case 30 into contact with the fitting 84. The filter 2, which is a paper filter, is placed in the upper portion having a large diameter, with its lower end peripheral edge resting on the tapered surface 82 of the case 8.

The filters 2 and 3 are installed in the container 5 by placing the case 8 equipped with them into the container 5 and supporting the case 8 by the annular protrusion 51 of the ring body 50 as described above. Ru. The filter 1 is housed in the container 5 with the upper end 7 of the case 10 locked to the upper edge of the case 8, and the wire mesh handle 1
3 is passed through the notch in the container 5 and the ring body 50, so that the knob 14 is positioned in the space 75 of the handle 7.
let

Furthermore, at this time, case 10 in filter 1 is
This prevents the filter 2, which is a zero-paper filter, from falling down, which is housed inside the case 8 and gets inside the filter 2.

Now, in the oil purifier configured in this way, the oil used for tempura, etc. is poured in with the lid 4 removed, but at this time, the oil is first filtered through the filter 1, which is a wire mesh. After relatively coarse impurities are removed, it passes through filter 2, and at this time, after removing sludge-like fine impurities, it passes through filter 3. The oil that has reached the filter 3 is transferred to the upper plate 34 and the nonwoven fabric filter 3.
When passing through the activated carbon layer 33, coloring components and odors are adsorbed and removed. The oil that has passed through each filter 1.2.3 is stored in an oil storage tank at the bottom of the container 5.

When reusing the oil stored in the oil storage tank, instead of opening the entire lid 4, you only need to open the oil filler 1i41.If you open the oil filler lid 41, the spring 46 will fill the oil! ! 41 is maintained in that state, even if the container 5 is tilted, the lubrication 1I
41 will never close. Then, when the container 5 is tilted, the oil passes through the dark passage between the carved portion 54 and the case 8 and flows out from the spout. The oil filler fitting 55 that prevents oil from flowing out from the spout is provided to prevent oil from dripping from the spout, and even if oil drips on the outer surface of the oil filler fitting 55, Oil is supplied to the oil filler fitting 55 and the bulging part 5.
4 and returns to the oil storage tank through a small gap between the lower end of the oil filler fitting 55 and the protrusion 56 on the inner surface of the bulging portion 54.

This prevents oil from dripping onto the outer surface of the container 5.

[Effect of the invention 1 As described above, in the present invention, the particle size of the activated carbon is fine, and the complex entanglement of fibers in the nonwoven fabric prevents the activated carbon from leaking. Because it uses a flexible material called woven fabric, the activated carbon will not become pulverized even if it comes into contact with the nonwoven fabric due to vibration or impact during use or transportation. It is possible to suppress the pulverization caused by the collision of activated carbon, and it is possible to prevent activated carbon from leaking without increasing the thickness of the nonwoven fabric layer. It is something that

[Brief explanation of drawings]

Figure 1 is an exploded perspective view of one embodiment of the present invention, Figure t52 (a)
(b), (c), and (d) are longitudinal cross-sectional views showing the order of the above-mentioned slopes, Fig. 3 is a longitudinal cross-sectional view of an oil purifier using the same, and Fig. 4 is a perspective view of the same, 3 is a fill goo, 30 is an oil purifying case, 31.32 is a nonwoven fabric filter, and 33 is activated carbon. 2nd (Q) Flash (b) (d)

Claims (2)

[Claims] (1) An oil purifier filter characterized in that activated carbon is surrounded by a nonwoven fabric whose particle size is finer than that of the activated carbon. (2) Perforated plates are arranged on both end surfaces of a metal cylindrical case, non-woven fabrics with one side in contact with these perforated plates are caulked and fixed to the case, and activated carbon is arranged between both non-woven fabrics. A filter for an oil purifier according to claim 1.