CN116099271A - Efficient oil filtering system and method for deep frying of doughnuts - Google Patents
Efficient oil filtering system and method for deep frying of doughnuts Download PDFInfo
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- CN116099271A CN116099271A CN202310197338.XA CN202310197338A CN116099271A CN 116099271 A CN116099271 A CN 116099271A CN 202310197338 A CN202310197338 A CN 202310197338A CN 116099271 A CN116099271 A CN 116099271A
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- filter
- scraping
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- 238000001914 filtration Methods 0.000 title claims abstract description 57
- 235000012489 doughnuts Nutrition 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000007599 discharging Methods 0.000 claims abstract description 67
- 238000004140 cleaning Methods 0.000 claims abstract description 21
- 238000007790 scraping Methods 0.000 claims description 73
- 238000003825 pressing Methods 0.000 claims description 48
- 238000007664 blowing Methods 0.000 claims description 37
- 238000001125 extrusion Methods 0.000 claims description 21
- 230000001360 synchronised effect Effects 0.000 claims description 19
- 238000010438 heat treatment Methods 0.000 claims description 9
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 239000002893 slag Substances 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims 1
- 239000003921 oil Substances 0.000 abstract description 204
- 239000008157 edible vegetable oil Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 208000028659 discharge Diseases 0.000 description 15
- 230000008569 process Effects 0.000 description 11
- 230000009471 action Effects 0.000 description 8
- 239000007788 liquid Substances 0.000 description 7
- 239000012530 fluid Substances 0.000 description 5
- 238000004804 winding Methods 0.000 description 5
- 239000002699 waste material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 235000013305 food Nutrition 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010724 circulating oil Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/056—Construction of filtering bands or supporting belts, e.g. devices for centering, mounting or sealing the filtering bands or the supporting belts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/44—Regenerating the filter material in the filter
- B01D33/46—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element
- B01D33/466—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element scrapers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/58—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element
- B01D33/62—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying
- B01D33/64—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying by compression
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/70—Filters with filtering elements which move during the filtering operation having feed or discharge devices
- B01D33/76—Filters with filtering elements which move during the filtering operation having feed or discharge devices for discharging the filter cake, e.g. chutes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/80—Accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/18—Heating or cooling the filters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/74—Recovery of fats, fatty oils, fatty acids or other fatty substances, e.g. lanolin or waxes
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Frying-Pans Or Fryers (AREA)
Abstract
The invention provides a high-efficiency oil filtering system and a method for frying doughnuts, which belong to the technical field of edible oil filtering, and comprise a frame, wherein an oil discharging tank, an oil discharging pipe arranged above the oil discharging tank and a filter screen arranged between the oil discharging tank and the oil discharging pipe are arranged on the frame; characterized by further comprising: the net conveying assembly intermittently conveys the filter net towards the two sides of the oil drain tank and is arranged on the frame; the filter screen oil filtering component is used for collecting, squeezing and discharging filter residues on the filter screen which are arranged in a V shape, and the filter screen oil filtering component is respectively arranged at two sides of the oil discharging pipe; and the net oil discharging assembly is used for enabling the filter net to be in a folded state to push and discharge oil, and is arranged on one side of the net oil cleaning and filtering assembly. The invention has the advantages of good filtering effect of the fried edible oil, realization of quick oil discharge of the filter screen and filter residues, and the like.
Description
Technical Field
The invention relates to the technical field of edible oil filtration, in particular to a high-efficiency oil filtration system and method for deep frying of doughnuts.
Background
In the process of producing fried foods such as doughnuts, the fried foods are required to be fried by a frying line, and the residues easily fall into oil liquid during frying, and the residues are often removed and filtered by utilizing a filter screen wound on one side, so that the reduction of the oil filtering flux caused by blocking of the filter residues on the filter screen is reduced while continuous oil filtering is ensured.
Chinese patent CN209547823U discloses a fryer with circulating oil filtering, which relates to the technical field of food processing equipment, and comprises a fryer body, and an oil filtering device arranged at one side of the fryer body, wherein the oil filtering device comprises an oil guiding groove, a filter screen conveying component, an oil filtering collecting box and a residue collecting box, and a coarse filter screen is arranged at the communicating part of the oil guiding groove and the oil groove of the fryer body; one end of the filter screen conveying component is positioned below the oil guide groove, the other end of the filter screen conveying component is positioned above the slag collecting box, the oil filtering collecting box is positioned below the filter screen conveying component, and the bottom of the oil filtering collecting box is connected with recovered oil communicated with the oil groove of the fryer body.
However, this technical scheme, though can realize the clearance to the fried piece, when utilizing the filter screen to filter, owing to exist partial edible oil in the filter residue, directly discharge, easily cause the waste of edible oil, owing to the edible oil when cooling down on the filter screen moreover, not only directly glue on the filter screen easily, still lead to the filter residue to glue on the filter screen and be difficult to discharge easily, and then lead to the shutoff of filter screen, be unfavorable for lasting oil.
Disclosure of Invention
The invention aims at overcoming the defects of the prior art, and provides a high-efficiency oil filtering system and method for deep frying of doughnuts, which are characterized in that a filter screen is intermittently conveyed left and right by a screen conveying assembly, oil discharged from an oil discharge pipe is continuously filtered by a movable filter screen and then discharged into an oil discharge tank, the filter screen carrying filter residues is cleaned by a screen cleaning oil filtering assembly, meanwhile, residual oil in the filter residues is squeezed and discharged, after the filter screen is cleaned, a folded filter screen is pushed towards the direction of a folding side line by a screen oil discharging assembly, and when the folded side line is reached, the top side of the folded filter screen is sealed, so that the technical problem in the background art is solved.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the high-efficiency oil filtering system for deep frying of the doughnut comprises a frame, wherein an oil discharging tank, an oil discharging pipe arranged above the oil discharging tank and a filter screen arranged between the oil discharging tank and the oil discharging pipe are arranged on the frame; characterized by further comprising: the net conveying assembly intermittently conveys the filter net towards the two sides of the oil drain tank and is arranged on the frame; the filter screen oil filtering component is used for collecting, squeezing and discharging filter residues on the filter screen which are arranged in a V shape, and the filter screen oil filtering component is respectively arranged at two sides of the oil discharging pipe; the net oil discharging assembly is used for enabling the filter net to be in a folded state to push and discharge oil, and is arranged on one side of the net oil cleaning and filtering assembly; the screen oil discharging assembly reciprocates the filter screen towards one side of the folding edge line at the lower end, and presses the filter screen when reaching the folding edge line, so that oil is discharged from the filter screen through the folding edge line.
Further, the clear net oil filter assembly comprises: the pushing and scraping assembly is used for cleaning residues from two sides to the middle of the filter screen along the upper part of the V shape; the screw rod assembly is used for scraping the collected residues on the filter screen, and the screw rod assembly is arranged along the broadband direction of the filter screen; the filter pressing assembly is used for reciprocally arranging the filter screen towards the filter pressing assembly extruded on the screw assembly at two sides of the filter screen below the V shape; the first air blowing component is used for carrying out hot air flow treatment on the two sides of the filter screen below the V shape and is arranged corresponding to the cleaning path of the pushing and scraping component; the pushing and scraping assembly elastically contacts with the filter screen, residues on the filter screen after being heated by the first blowing assembly are pushed to the screw assembly and then upwards removed from the filter screen, and the filter pressing assembly extrudes oil in the residues towards the screw assembly and falls to the oil discharge pool.
Further, the pushing and scraping assembly includes: a lifting seat; the lifting power assembly is arranged on the frame and drives the lifting seat to reciprocate up and down; the scraping pieces are symmetrically arranged and are mutually hinged on the lifting seat; the pushing and rotating assembly enables the scraping piece to rotate around the hinge point and is arranged on the lifting seat; the lifting power assembly drives the scraping piece to rotate, and the pushing and rotating assembly drives the scraping piece to rotate around the hinge point, so that the scraping piece is always in contact with the surface of the filter screen.
Further, the screw assembly includes: the power screw is arranged on the rack; and the discharging bin is used for collecting the slag discharged by the rotation of the power screw and is arranged on the frame at one end of the power screw.
Further, the press assembly includes: the inner side of the filter pressing seat is provided with an oil squeezing space corresponding to the power screw; and the filter pressing power piece drives the filter pressing seat to reciprocate towards the two sides of the power screw rod and elastically extrude the filter pressing power piece back and forth, and the filter pressing power piece is arranged on the frame.
Further, the mesh oil drain assembly includes: the synchronous driving assembly is used for synchronously conveying the filter screen in the folding state and is arranged on the frame; the oil discharging assembly is used for pushing oil downwards towards the synchronously conveyed filter screen and extruding the oil, and is arranged at two sides of the filter screen in a folded state; and second air blowing assemblies arranged at intervals along the width of the filter screen above the folding edge line.
Further, the synchronous drive assembly includes: and a plurality of groups of synchronous driving rollers arranged at two sides of the filter screen in a folded state.
Further, the oil drain assembly includes: an extrusion piece; the extrusion power piece is used for driving the extrusion piece to extrude towards the filter screen, and is arranged on the frame; the squeezing power piece enables one side of the top of the squeezing piece to contact with the filter screen to push the oil to drain down to the folding edge, and the squeezing power piece enables the squeezing piece to squeeze the filter screen at the folding edge to drain the oil.
Further, the extrusion piece comprises: pushing the base; the oil scraping seat is elastically and rotatably connected to the pushing seat; the symmetrically arranged oil scraping seats are provided with bulges and groove bodies for plugging one side of the top of the oil scraping seat; the bulges and the groove bodies are correspondingly arranged.
The invention also provides a high-efficiency oil filtering method for deep frying of the doughnut, which is characterized by comprising the following steps of:
step one, conveying nets, namely, after oil is fried, filtering the oil by a filter screen, releasing the oil to an oil drain tank, and intermittently conveying the filter screen towards two sides by a net conveying assembly;
step two, cleaning residues, namely blowing and heating the filter screen and the residues along two sides of the bottom of the V-shaped filter screen by a first blowing component, pushing and scraping the residues to a screw component along two sides of the top of the V-shaped filter screen towards the middle, and extruding the filter pressing component towards the filter screen corresponding to the screw component in a reciprocating manner to enable oil extrusion to fall into an oil discharge pool;
step three, discharging residues, namely after the filter pressing assembly loosens the screw assembly, driving the residues of the squeezed oil to be discharged outwards by the screw assembly, and then pushing the scraping assembly to the two sides of the top of the V-shaped filter screen again;
circularly carrying out the second step and the third step;
step four, net oil squeezing, wherein the filter screens after residue cleaning are conveyed in a folding manner to reach a net oil discharging assembly, the synchronous driving assembly enables the folding filter screens to be synchronously output, a second air blowing assembly blows out heating air between the adjacent folding filter screens and above a folding edge line, one side of the top of the second air blowing assembly is obliquely contacted with and pressed against oil scraping seats on two sides of the folding filter screens to conduct oil scraping action from top to bottom, and when the filter screens reach the folding edge line, the oil scraping seats are mutually extruded and closed to squeeze oil in the folding filter screens;
and fifthly, returning the oil, and continuously conveying the oil filtered by the oil discharge pool into the frying pool.
The invention has the beneficial effects that:
(1) According to the invention, through the mutual coordination among the net conveying assembly, the net oil filtering assembly and the net oil discharging assembly, the movable oil filtering of the filter net can be realized when the filter net is utilized for oil filtering, and meanwhile, the filter net after oil filtering is continuously cleaned by filter residues and the oil squeezing and discharging treatment of the filter net is carried out, so that the filter net is ensured to return to the oil filtering again in a clean state, and the trafficability during oil filtering is effectively ensured;
(2) According to the invention, through the mutual coordination among the pushing and scraping assembly, the screw rod assembly and the filter pressing assembly, before the filter residues filtered out of the surface of the filter screen are cleaned, concentrated filter pressing treatment is carried out, so that the carrying amount of the filter residues on oil liquid is reduced, the filter screen is cleaned, and meanwhile, the recovery of the oil liquid in the filter residues is realized;
(3) According to the invention, through the mutual matching between the first blowing component and the pushing and scraping component, when the pushing and pressing component cleans the oil on the filter screen, the oil on the filter screen is heated by hot air flow, so that the viscosity between filter residues and the filter screen caused by solidification of the oil is reduced, and meanwhile, the oil carried on the filter residues is ensured to be in a liquid state, so that the extrusion and discharge treatment is facilitated;
(4) The synchronous driving assembly and the oil discharging assembly are mutually matched, so that synchronous driving can be realized when the filter screen is extruded and discharged, the folded filter screen can be ensured to be orderly arranged all the time when being conveyed, the oil discharging assembly is convenient for uniformly discharging oil, and the oil discharging effect of the filter screen is improved;
(5) According to the invention, through the matching design between the second blowing component and the oil discharging component, the filter screen is blown and tidied before oil is discharged, and meanwhile, the heating and softening of the oil on the filter screen to form fluid are effectively realized, so that the extruding and discharging efficiency is improved;
(6) According to the invention, through the mutual matching between the extrusion piece and the extrusion power piece, the downward extrusion of oil to the folding side line of the folding filter screen can be realized, and the extrusion of oil after the sealing of one side of the top of the extrusion piece is carried out after the folding side line is reached, so that the oil discharge effect of the filter screen is further promoted;
in conclusion, the invention has the advantages of good filtering effect of the fried edible oil, realization of quick oil discharge of the filter screen and filter residues, and the like.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is an enlarged schematic view of the filter screen process of FIG. 1 according to the present invention;
FIG. 3 is a schematic diagram of the structure of the oil filter assembly of the present invention;
FIG. 4 is a schematic diagram of another lateral structure of FIG. 3 in accordance with the present invention;
FIG. 5 is a schematic view of the structure of FIG. 3 with the filter screen removed;
FIG. 6 is a schematic view of a lifting power assembly according to the present invention;
FIG. 7 is a schematic view of a driving body according to the present invention;
FIG. 8 is an end cross-sectional view of FIG. 3 in accordance with the present invention;
FIG. 9 is an enlarged view of the structure of the oil filter assembly of the present invention;
FIG. 10 is an enlarged view of FIG. 9A in accordance with the present invention;
fig. 11 is a schematic view of the structure of the mesh oil drain assembly of the present invention;
FIG. 12 is an end cross-sectional view of FIG. 11 in accordance with the present invention;
FIG. 13 is an enlarged view of the portion B of FIG. 12 in accordance with the present invention;
FIG. 14 is a flow chart of the oil filtering method of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Example 1
As shown in fig. 1, the efficient oil filtering system for deep frying of the doughnut comprises a frame 1, wherein an oil drain tank 2, an oil drain pipe 3 arranged above the oil drain tank 2 and a filter screen 4 arranged between the oil drain tank 2 and the oil drain pipe 3 are arranged on the frame 1; characterized by further comprising: the screen conveying components 5 are used for intermittently conveying the filter screen 4 towards the two sides of the oil drain tank 2, and the screen conveying components 5 are arranged on the frame 1; the filter screen oil filtering component 6 is used for collecting, squeezing and discharging filter residues on the filter screen 4 which is arranged in a V shape, and the filter screen oil filtering component 6 for discharging is respectively arranged at two sides of the oil discharging pipe 3; the net oil drain assembly 7 is used for pushing and draining the filter net 4 in a folded state, and the net oil drain assembly 7 is arranged on one side of the net oil cleaning and filtering assembly 6; the screen oil drain assembly 7 reciprocates the filter screen 4 toward the side of the folding edge of the lower end, and presses the filter screen 4 when reaching the folding edge, so that the oil is drained from the filter screen 4.
Through the above, it is not difficult to find that, in the deep-fry production process of deep-fry such as doughnuts, due to the continuous progress of the deep-fry process, a certain amount of waste residues falling in during deep-fry process exist in oil, the waste residues are filtered through the filter screen 4 by the pipeline and the oil pump, and then discharged into the oil drain tank 2, and finally, the waste residues are conveyed again to the deep-fry production line through the oil drain tank 2, specifically, in the process of filtering oil by the filter screen 4, the oil level of the filter screen 4 is continuously adjusted through the screen conveying component 5 so as to ensure the oil filtering flux of the oil filter screen, and in the process of driving the filter screen 4 to reciprocate back and forth through the screen conveying component 5, the filter residues on the filter screen 4 are firstly cleaned intensively by the screen filtering oil filtering component 6 on two sides of the oil drain pipe 3, then the filter residues are wrapped by the filter screen 4, the oil in the filter residues is extruded into the oil drain tank 2, and simultaneously, the filter screen 4 after the oil residues are cleaned reaches the screen filtering component 7 again, an S-shaped folded state is formed, then, the filter screen filtering component 7 is pushed towards one side of the folded side of the oil drain line, and the oil is extruded to the side of the filter screen 4 when the folded side is extruded, and the oil level is effectively extruded, and the side of the filter screen is folded, and the side when the oil is extruded.
It should be added that, in order to realize the reciprocating conveying of the filter screen 4, the screen conveying assembly 5 includes winding rollers 51 installed at two sides of the frame 1 and respectively used for winding two ends of the filter screen 4; in order to realize the driving of the winding rollers 51, the two groups of the winding rollers 51 can be driven by a belt, and one group of the winding rollers 51 is driven to rotate by using a forward and reverse rotation motor.
It should be further noted that, as shown in fig. 4, in order to realize the V-shaped conveying of the filter screen 4, first guide rollers 52 are clamped at two sides of the filter screen 4 corresponding to the filter screen oil filtering assembly 6, the first guide rollers 52 are respectively arranged at two sides of the filter screen oil filtering assembly 6, and the quantitative conveying of the filter screen 4 can be realized by utilizing the rotary conveying of the first guide rollers 52 clamped on the filter screen 4.
As shown in fig. 11, a second guide roller 53 is provided on the top side of the filter screen 4 corresponding to the screen discharging unit 7 so as to convey the filter screen 4 in a folded state, and the second guide roller 53 is preferably a fixed roller so as to guide the filter screen 4 in a folded state.
As shown in fig. 3, the screen filter assembly 6 includes: a pushing and scraping assembly 61, which is used for cleaning residue from two sides of the filter screen 4 towards the middle along the upper part of the V shape, and the pushing and scraping assembly 61 is used for cleaning residue from two sides towards the middle; a screw assembly 62, wherein the screw assembly 62 for scraping the collected residues on the filter screen 4 is arranged along the broadband direction of the filter screen 4; a filter pressing assembly 63, wherein the filter pressing assembly 63 which reciprocally presses the filter screen 4 towards the screw assembly 62 is arranged at two sides of the filter screen 4 below the V shape; the first air blowing component 64 is used for carrying out hot air flow treatment on two sides of the filter screen 4 below the V shape, and the first air blowing component 64 is arranged corresponding to the cleaning path of the pushing and scraping component 61; the pushing and scraping assembly 61 elastically contacts the filter screen 4, residues on the filter screen 4 after being heated by blowing by the first blowing assembly 64 are pushed to the screw assembly 62 and then are upwards removed from the filter screen 4, and the filter pressing assembly 63 extrudes oil in the residues towards the screw assembly 62 and falls to the oil drain tank 2.
In this embodiment, in the process of cleaning the filter residue on the filter screen 4, the filter residue is filtered to the middle area of the V shape, i.e. the screw assembly 62, by the cleaning action of the pushing and scraping assembly 61 on one side of the top of the filter screen 4, and after the pushing and scraping assembly 61 is evacuated, the filter screen 4 is pushed towards the screw assembly 62 by the filter pressing assembly 62, so that the filter residue is extruded between the filter screen 4 and the screw assembly 62, so that the oil is extruded and discharged through the filter screen 4.
It should be added that the first blowing assembly 64 includes a blowing plate obliquely arranged along a V shape and a blowing port uniformly provided on the blowing plate.
In this embodiment, through blow the filter screen 4 with the hot air current through the gas blow mouth on, can realize carrying out heating treatment to filter screen 4 and filter residue on the filter screen 4 to solved because of the oil temperature on the filter screen 4 drops, be unfavorable for scraping the technical problem that breaks away from because of the fluid effect between filter residue that makes the mobility of fluid reduce and the filter screen 4, simultaneously through utilizing the heating treatment to the filter residue, still be convenient for guarantee the liquid state of fluid in the filter residue, thereby in order to extrude the fluid out from the filter residue.
As shown in fig. 4, the pushing and scraping assembly 61 includes: lifting seat 611; a lifting power assembly 612, wherein the lifting power assembly 612 driving the lifting seat 611 to reciprocate up and down is installed on the frame 1; the scraping pieces 613, the scraping pieces 613 which are symmetrically arranged are mutually hinged on the lifting seat 611; a pushing and rotating assembly 614, wherein the pushing and rotating assembly 614 for rotating the scraping element 613 around a hinge point is mounted on the lifting seat 611; the lifting power assembly 612 drives the scraping piece 613 to rotate, and meanwhile, the pushing and rotating assembly 614 drives the scraping piece 613 to rotate around the hinge point, so that the scraping piece 613 is always in contact with the surface of the filter screen 4.
In this embodiment, when the pushing and scraping assembly 61 performs cleaning action on the filter screen 4, the lifting plate 611 is driven to reciprocate by the lifting power assembly 612 to move up and down, and the lifting seat 611 is driven to rotate by the pushing and rotating assembly 614 while moving, so that the lifting seat 611 is abutted against the filter screen 4 along the V shape to descend and scrape under the action of elastic force, and filter residues are cleaned onto the screw assembly 62 to squeeze and discharge oil.
It should be added that the pushing and rotating assembly 614 is preferably an air cylinder with a power end movably connected to the middle part of the scraping piece 613.
It should be further added that, as shown in fig. 6 and 7, the lifting power assembly 612 includes a guide frame 6121 installed on the frame 1, a guide rod 6122 movably passing through the guide frame 6121 and having one end connected to the lifting seat 611, a first spring 6124 elastically connecting the guide rod 6122 with the guide frame 6121, a driving body 6123 arranged on one side of the guide rod 6122, a power motor 6125 installed on the frame 1 and used for driving the driving body 6123 to rotate, a release chamber 6128 opened on the driving body 6123, spiral rails 6127 respectively communicating with the upper side and the lower side of the release chamber 6128 and having a spiral shape, and a bump 6126 inserted into the spiral rails 6127 and having one end fixed on the guide rod 6122.
In this embodiment, the driving body 6123 is driven by the power motor 6125, which is preferably a servo motor, to rotate, so that the bump 6126 moves upwards along the spiral track 6127, so that the scraping piece 613 moves upwards away from the filter screen 4, and after the scraping piece 613 reaches a high point and opens to two sides, the bump 6126 moves into the release space 6128, meanwhile, under the elastic force of the first spring 6124, the scraping piece 613 abuts against the filter screen 4 to scrape downwards, and along with the downward movement of the scraping piece 613, the bump 6126 on the side above the release space 6128 moves to the bottom side and continues into the spiral track 6127, and along with the rotation of the spiral track 6127, the scraping piece 613 rises again, so that the process is performed reciprocally.
As shown in fig. 9 and 10, the screw assembly 62 includes: a power screw 621, the power screw 621 being mounted on the frame 1; and a discharging bin 622 for collecting the slag discharged by the rotation of the power screw 621, wherein the discharging bin 622 is mounted on the frame 1 at one end of the power screw 621.
In this embodiment, after the oil in the filter residue is extruded, the power screw 621 is driven to rotate by the screw motor 623, which is preferably a servo motor, mounted on the frame 1, so that the filter residue is conveyed and discharged toward the discharging bin 622 side while the filter residue is turned over.
It is noted that the power screw 621 is in a non-rotating state when the pressing oil acts, and the power screw 621 rotates when the press filter assembly 63 leaves, so that the material turning, extrusion and oil discharge of the filter residues are realized.
As shown in fig. 8 and 9, the press assembly 63 includes: the filter pressing seat 631, wherein an oil squeezing space 6311 corresponding to the power screw 621 is provided inside the filter pressing seat 631; and a filter pressing power piece 632, wherein the filter pressing power piece 632 driving the filter pressing seat 631 to reciprocate back and forth towards the two sides of the power screw 621 is arranged on the frame 1.
In this embodiment, the filter pressing assembly 63 drives the filter pressing seat 631 to reciprocate back and forth towards two sides of the power screw 621 through the power action of the filter pressing power piece 632 in the process of squeezing the filter residues, so that the filter pressing seat 631 pushes the filter screen 4 to press the filter residues onto the power screw 621, the filter residues are squeezed in the oil squeezing space 6311, and the squeezed oil is discharged through the gap between the filter pressing seats 631.
It should be noted that, as shown in fig. 8, the filter pressing power unit 632 includes a rotating base 6321 movably mounted on the frame 1, a filter pressing power motor 6323 mounted on the frame 1 and having a power end connected to the rotating base 6321, a driving rod 6322 mounted on the rotating base 6321 and having another end movably connected to the filter pressing seat 631, and a guiding rod 6324 mounted on the filter pressing seat 631 and having another end slidably inserted in the frame 1.
In this embodiment, the rotary base 6321 is driven by the press filtration power motor 6323, which is preferably a servo motor, so as to drive the driving rod 6322 to push the press filtration seat 631 to reciprocate back and forth towards the power screw 621 under the guiding action of the guiding rod 6324.
It should be further added that the press filter seat 631 includes a pushing seat 6312 and a press seat 6312 connected to the pushing seat 6312 through a second spring, where the oil squeezing space 6311 is disposed on the press seat 6312.
In this embodiment, the filter screen 4 is elastically pressed against the power screw 621 by the pressing base 6312 by the elastic force of the second spring.
It should be noted that, in order to ensure the drainage of the filtered oil, the adjacent filter pressing seats 631 are in a non-contact state when in a pressed state.
Example two
As shown in fig. 12, wherein the same or corresponding parts as those in the first embodiment are given the same reference numerals as those in the first embodiment, only the points of distinction from the first embodiment will be described below for the sake of brevity. The second embodiment is different from the first embodiment in that:
the mesh drain assembly 7 includes: a synchronous driving assembly 71, wherein the synchronous driving assembly 71 for synchronously conveying the filter screen 4 in a folded state is arranged on the frame 1; an oil discharging assembly 72, wherein the oil discharging assembly 72 which pushes down oil and extrudes the oil to the synchronously conveyed filter screen 4 is arranged at two sides of the filter screen 4 in a folded state; and second air blowing members 73, said second air blowing members 73 being arranged at intervals along the width of said filter screen 4 above the folding edge line.
In this embodiment, during the oil discharging process, the second guide roller 53 drives the filter screen 4 to fold and convey, and simultaneously, the synchronous driving assembly 71 is utilized to drive the folded filter screen 4 to synchronously move out, so that the folded bottom edge is always on the same plane, and then the second blowing assembly 73 is utilized to blow out hot air above the fold edge, so that the oil is kept in a liquid state, the oil is pushed out by pushing and pulling the extrusion oil to the fold edge through the oil discharging assembly 72, and then the extrusion action after top blocking is performed towards the two sides of the fold edge, so that the oil is pushed out, and then the filter screen 4 is removed, and the filter screen 4 is continuously conveyed outwards under the driving of the synchronous driving assembly 71, and then the oil discharging assembly 72 extrudes the filter screen 4 again, so that the oil is reciprocally discharged comprehensively.
As shown in fig. 13, the synchronous drive assembly 71 includes: sets of synchronous drive rollers 711 disposed on either side of the filter web 4 in the folded condition.
In this embodiment, the synchronous driving rollers 711 are sequentially arranged between the folding filter screens 4, and when the synchronous driving rollers 711 rotate, the filter screens 4 are clamped and driven to be synchronously conveyed outwards, so that the uniformity of the folding positions of the filter screens 4 is ensured.
Notably, the ends of the drive rollers 711 are preferably geared together.
It is also noted that the second air blowing assembly 73 includes an air blowing pipeline arranged along the width direction of the filter screen 4 and an air discharging port provided at one side of the bottom of the air blowing pipeline; through the hot air flow is sprayed out from the air release port through the air blowing pipeline in sequence, the cooling oil adsorbed on the filter screen 4 can be heated to maintain a liquid state, and meanwhile, the downward arrangement of the filter screen 4 can be realized, so that the folded part of the filter screen 4 can be always kept in a vertical folded state, and the oil squeezing and pushing work of the oil discharging assembly 72 from top to bottom is facilitated.
As shown in fig. 12, the oil drain assembly 72 includes: an extrusion 721; and a squeezing power member 722, wherein the squeezing power member 722 for driving the squeezing member 721 to squeeze toward the filter screen 4 is mounted on the frame 1; the squeezing power member 722 pushes the top side of the squeezing member 721 to contact the filter screen 4 to drain oil down to the folding edge, and the squeezing power member 722 squeezes the squeezing member 721 to drain oil from the filter screen 4 at the folding edge.
In this embodiment, in the process of discharging oil from the folded filter screen 4, the oil discharging assembly 72 drives the top side of the extruding member 721 to contact the folded filter screen 4 and push down oil under the power of the extruding power member 722, and when the extruding member 721 reaches the folding edge, the extruding member 721 rotates by an angle such that the extruding member 721 fully abuts against the filter screen 4 in the folding edge region, thereby extruding the oil.
As shown in fig. 13, the extruding member 721 includes: pushing base 7211; and a wiper base 7212 elastically and rotatably coupled to the push base 7211; the symmetrically arranged oil scraping seat 7212 is provided with a bulge 7213 and a groove 7214 for plugging one side of the top of the oil scraping seat 7212; the protrusions 7213 and the groove 7214 are correspondingly arranged.
In this embodiment, during the squeezing operation, the squeezing unit 721 presses the two sides of the folded filter screen 4 through the top side of the inclined oil scraping unit 7212 and moves down to above the folding edge, and the squeezing unit 722 pushes the pushing unit 7211 and the oil scraping unit 7212 to move closer to the filter screen 4, so that the oil scraping unit 7212 rotates to a vertical state under elastic connection with the pushing unit 7211, and presses the filter screen 4, thereby squeezing out the oil.
As shown in fig. 12, the extrusion power member 722 includes an extrusion lifting seat 7221, a first power member 7222 mounted on the extrusion lifting seat 7221 and having a power end connected to the extrusion member 721, and a second power member 7223 mounted on the frame 1 and having a power end connected to the extrusion lifting seat 7221; the first power member 7222 and the second power member 7223 are preferably cylinders.
Example III
As shown in fig. 14, a method for efficiently filtering oil for deep frying donuts, implemented by the system described in the above embodiment, comprises the following steps:
step one, conveying a net, namely filtering oil discharged from an oil discharge pipe 3 through a filter screen 4, then releasing the oil to an oil discharge tank 2, and intermittently conveying the filter screen 4 towards two sides by a net conveying assembly 5;
step two, cleaning residues, namely blowing and heating the filter screen 4 and the residues along two sides of the bottom of the V-shaped filter screen 4 by a first blowing assembly 64, pushing and scraping the residues to a screw assembly 62 along two lateral middle sides of the top of the V-shaped filter screen 4 by a pushing and scraping assembly 61, and extruding the oil to an oil discharge tank 2 by a filter pressing assembly 63 in a reciprocating way towards the filter screen corresponding to the screw assembly 62;
step three, discharging residues, namely, after the screw rod assembly 62 is loosened by the filter pressing assembly 63, driving the residues of the dry oil to be discharged outwards by the screw rod assembly 62, and then pushing the scraping assembly 61 to the two sides of the top of the V-shaped filter screen 4 again;
circularly carrying out the second step and the third step;
step four, net squeezing, namely conveying the filter screen 4 subjected to residue cleaning in a folding manner to reach a net oil discharging assembly 7, synchronously outputting the folding filter screen 4 by a synchronous driving assembly 71, blowing out heating air between the adjacent folding filter screens 4 and above a folding edge line by a second blowing assembly 73, obliquely contacting and pressing oil scraping seats 7212 on two sides of the folding filter screen 4 at one side of the top to perform oil scraping action from top to bottom, and mutually extruding and closing the oil scraping seats 7212 when reaching the folding edge line, and extruding and discharging oil in the folding filter screen 4;
and fifthly, returning the oil, and continuously conveying the oil filtered by the oil discharge pool 2 into the frying pool.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (10)
1. The efficient oil filtering system for deep frying of the doughnut comprises a frame (1), wherein an oil discharging pool (2), an oil discharging pipe (3) arranged above the oil discharging pool (2) and a filter screen (4) arranged between the oil discharging pool (2) and the oil discharging pipe (3) are arranged on the frame (1);
characterized by further comprising:
the net conveying assembly (5) is used for intermittently conveying the filter net (4) towards the two sides of the oil drain tank (2), and the net conveying assembly (5) is arranged on the frame (1);
the filter screen oil filtering component (6) is used for collecting, squeezing and discharging filter residues on the filter screen (4) which is arranged in a V shape, and the filter screen oil filtering component (6) for discharging is respectively arranged at two sides of the oil discharging pipe (3); and
the net oil discharging assembly (7) is used for enabling the filter screen (4) to be in a folded state to push and discharge oil, and the net oil discharging assembly (7) is arranged on one side of the net oil cleaning and filtering assembly (6);
the screen oil discharging assembly (7) reciprocates the filter screen (4) towards one side of the folding edge line at the lower end to push and scrape oil, and presses the filter screen (4) when reaching the folding edge line, so that oil is discharged from the filter screen (4) from the folding edge line.
2. A donut frying high efficiency oil filter system as defined in claim 1 wherein,
the clear net oil filtering component (6) comprises:
the pushing and scraping assembly (61) is used for cleaning and scraping the residues of the filter screen (4) from two sides to the middle along the upper part of the V shape;
a screw assembly (62), the screw assembly (62) for scraping the collected residues on the filter screen (4) is arranged along the broadband direction of the filter screen (4);
the filter pressing assemblies (63) are used for reciprocally arranging the filter screen (4) towards the filter pressing assemblies (63) extruded on the screw assembly (62) on two sides of the filter screen (4) below the V shape; and
the first blowing assembly (64) is used for carrying out hot air flow treatment on the two sides of the filter screen (4) below the V shape, and the first blowing assembly (64) is arranged corresponding to the cleaning path of the pushing and scraping assembly (61);
the pushing and scraping assembly (61) is elastically contacted with the filter screen (4), residues on the filter screen (4) after being heated by blowing through the first blowing assembly (64) are pushed to the screw assembly (62) and then are upwards removed from the filter screen (4), and the filter pressing assembly (63) extrudes oil in the residues towards the screw assembly (62) and falls to the oil drain tank (2).
3. A donut frying high efficiency oil filter system as claimed in claim 2, wherein,
the pushing and scraping assembly (61) comprises:
a lifting base (611);
a lifting power assembly (612), wherein the lifting power assembly (612) for driving the lifting seat (611) to reciprocate up and down is arranged on the frame (1);
the scraping pieces (613) are symmetrically arranged, and the scraping pieces (613) are mutually hinged on the lifting seat (611);
a pushing and rotating assembly (614), wherein the pushing and rotating assembly (614) for enabling the scraping piece (613) to rotate around a hinge point is arranged on the lifting seat (611);
the lifting power assembly (612) drives the scraping piece (613) to rotate, and meanwhile the pushing rotating assembly (614) drives the scraping piece (613) to rotate around the hinge point, so that the scraping piece (613) is always in contact with the surface of the filter screen (4).
4. A donut frying high efficiency oil filter system as claimed in claim 2, wherein,
the screw assembly (62) includes:
a power screw (621), the power screw (621) being mounted on the frame (1); and
the discharging bin (622) is used for collecting the power screw (621) and discharging slag in a rotating mode, and the discharging bin (622) is arranged on the frame (1) at one end of the power screw (621).
5. A donut frying high efficiency oil filter system as defined in claim 4 wherein,
the press assembly (63) comprises:
the inner side of the filter pressing seat (631) is provided with an oil squeezing space (6311) corresponding to the power screw rod (621); and
the filter pressing power piece (632) drives the filter pressing seat (631) to reciprocate towards the two sides of the power screw rod (621) to elastically extrude the filter pressing power piece (632) back and forth, and the filter pressing power piece (632) is arranged on the frame (1).
6. A donut frying high efficiency oil filter system as claimed in any one of claims 1-5 wherein,
the mesh oil drain assembly (7) comprises:
a synchronous driving assembly (71), wherein the synchronous driving assembly (71) for synchronously conveying the filter screen (4) in a folded state is arranged on the frame (1);
the oil discharging assemblies (72) are used for pushing oil downwards towards the synchronously conveyed filter screen (4) and extruding the oil, and the oil discharging assemblies (72) are arranged at two sides of the filter screen (4) in a folded state; and
-second air-blowing assemblies (73), which are arranged at intervals along the width of the filter screen (4) above the fold edge line (73).
7. A donut frying high efficiency oil filter system as defined in claim 6 wherein,
the synchronous drive assembly (71) includes:
and a plurality of groups of synchronous driving rollers (711) arranged at two sides of the filter screen (4) in the folded state.
8. A donut frying high efficiency oil filter system as defined in claim 6 wherein,
the oil drain assembly (72) includes:
an extrusion (721); and
a squeezing power piece (722), wherein the squeezing power piece (722) for driving the squeezing piece (721) to squeeze towards the filter screen (4) is arranged on the frame (1);
the squeezing power piece (722) enables one side of the top of the squeezing piece (721) to contact the filter screen (4) to push down to drain oil to the folding edge, and the squeezing power piece (722) enables the squeezing piece (721) to squeeze the filter screen (4) at the folding edge to drain oil.
9. A donut frying high efficiency oil filter system as set forth in claim 8 wherein,
the displacement member (721) includes:
a pushing base (7211); and
an oil scraping seat (7212) which is elastically and rotatably connected to the pushing seat (7211);
the symmetrically arranged oil scraping seats (7212) are provided with protrusions (7213) and groove bodies (7214) for blocking one side of the top of the oil scraping seats (7212);
the protrusions (7213) and the groove bodies (7214) are correspondingly arranged.
10. A method for efficient oil filtration for donut frying, characterized in that the method is realized by adopting the system as claimed in any one of claims 1 to 9, and comprises the following steps:
step one, conveying a net, namely, filtering oil discharged from an oil discharge pipe (3) through a filter screen (4) and then releasing the oil to an oil discharge tank (2), and intermittently conveying the filter screen (4) towards two sides by a net conveying assembly (5);
step two, cleaning residues, namely blowing and heating the filter screen (4) and the residues by a first blowing assembly (64) along two sides of the bottom of the V-shaped filter screen (4), pushing and scraping residues to a screw assembly (62) along two sides of the top of the V-shaped filter screen (4) towards the middle by a pushing and scraping assembly (61), and extruding the filter pressing assembly (63) towards the filter screen corresponding to the screw assembly (62) in a reciprocating manner to enable oil to be extruded and fall into an oil discharge pool (2);
step three, discharging residues, namely, after a filter pressing assembly (63) loosens a screw assembly (62), driving residues of the dry oil to be discharged outwards by the screw assembly (62), and then enabling a pushing and scraping assembly (61) to reach the two sides of the top of the V-shaped filter screen (4) again;
circularly carrying out the second step and the third step;
step four, extruding oil from the net, conveying the filter screen (4) after residue cleaning into a folded shape to reach a net oil discharging assembly (7), synchronously driving the assembly (71) to synchronously output the folded filter screen (4), blowing out heating air between the adjacent folded filter screens (4) above a folding edge line by a second blowing assembly (73), obliquely contacting and pressing one side of the top with oil scraping seats (7212) on two sides of the folded filter screen (4) from top to bottom to scrape oil, and mutually extruding and closing the oil scraping seats (7212) when the oil reaches the folding edge line to extrude and discharge oil in the folded filter screen (4);
and fifthly, returning the oil, and continuously conveying the oil filtered by the oil discharge pool (2) into the frying pool.
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