CN112552998A - Fish oil winterization process with secondary slow cooling and filtering equipment used by fish oil winterization process - Google Patents
Fish oil winterization process with secondary slow cooling and filtering equipment used by fish oil winterization process Download PDFInfo
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- CN112552998A CN112552998A CN202011593417.5A CN202011593417A CN112552998A CN 112552998 A CN112552998 A CN 112552998A CN 202011593417 A CN202011593417 A CN 202011593417A CN 112552998 A CN112552998 A CN 112552998A
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- 235000021323 fish oil Nutrition 0.000 title claims abstract description 74
- 238000001914 filtration Methods 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 38
- 238000010583 slow cooling Methods 0.000 title claims abstract description 20
- 238000001816 cooling Methods 0.000 claims abstract description 73
- 239000013078 crystal Substances 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000003756 stirring Methods 0.000 claims description 13
- 239000004744 fabric Substances 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims 2
- 238000007906 compression Methods 0.000 claims 2
- 238000003032 molecular docking Methods 0.000 claims 1
- 238000007710 freezing Methods 0.000 abstract description 13
- 230000008014 freezing Effects 0.000 abstract description 10
- 238000001556 precipitation Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 6
- 238000007789 sealing Methods 0.000 abstract description 3
- 238000002425 crystallisation Methods 0.000 description 9
- 230000008025 crystallization Effects 0.000 description 9
- 239000003921 oil Substances 0.000 description 7
- 235000019198 oils Nutrition 0.000 description 7
- 238000000926 separation method Methods 0.000 description 4
- 239000003818 cinder Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000002285 corn oil Substances 0.000 description 2
- 235000005687 corn oil Nutrition 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 238000004042 decolorization Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B3/00—Refining fats or fatty oils
- C11B3/001—Refining fats or fatty oils by a combination of two or more of the means hereafter
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B3/00—Refining fats or fatty oils
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B3/00—Refining fats or fatty oils
- C11B3/008—Refining fats or fatty oils by filtration, e.g. including ultra filtration, dialysis
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Fats And Perfumes (AREA)
Abstract
The invention belongs to the technical field of aquatic feeds, and particularly relates to a fish oil winterization process with secondary slow cooling and filtering equipment used by the fish oil winterization process. The invention achieves the purpose of high precipitation rate of high-solidification-point fish oil by performing two cooling operations of firstly quick cooling and then slowly cooling, and matching with proper standing crystal growth temperature and time, and the filtering equipment adopted during crystal filtering comprises a barrel body base, a feeding pipe, a feeding valve, a fish oil pipe, a convex plate unit, a circular filter screen unit, a combined ring unit, an inverted barrel body and a water cooling pipe. The method has the advantages of high precipitation rate of the fish oil with high freezing point, good low-temperature maintaining effect in the filtering process of the fish oil crystals, difficult remelting of the fish oil crystals, good effect of removing the fish oil with high freezing point by winterization, high structural stability of the filtering equipment, convenient taking-off of the fish oil crystals and good sealing performance of the filtering structure.
Description
Technical Field
The invention belongs to the technical field of aquatic feeds, and particularly relates to a fish oil winterization process with secondary slow cooling and filtering equipment used by the fish oil winterization process.
Background
The fish oil is usually winterized at the later stage of the refining process, and the aim is to separate out the fish oil with higher freezing point after crystallization, so that the remaining fish oil can keep clear and transparent under the relatively low temperature condition, which is particularly important in the production process of aquatic feed containing fish oil.
The existing fish oil winterization process mainly comprises the steps of cooling decolored fish oil, standing for crystallization and filtering and separating, but the process at least has the following problems: firstly, the cooling operation is not reasonable enough, the crystallization rate of the fish oil with high freezing point is not high, and the removal rate cannot be increased all the time; secondly, because the filtering device lacks the cooling function, the high-freezing point fish oil crystal part is heated and melted again in the filtering process, and the removal rate of the high-freezing point fish oil is also reduced.
Therefore, in view of the above, there is an urgent need in the market for a suitable cooling condition that can improve the crystallization rate of the high-freezing-point fish oil, and a high-freezing-point fish oil crystal filtering device with a cooling function.
The Chinese invention patent with patent publication No. CN103695164A and publication No. 2014.04.02 discloses a corn oil winterization dewaxing process, which comprises the following steps: (1) heat exchange: firstly, raw oil and produced dewaxed oil are subjected to heat exchange; (2) cooling; (3) premixing: then uniformly mixing the raw oil with the filter aid; (4) and (3) crystallization: the mixture of the raw oil and the filter aid is subjected to overflow crystallization by 3-4 crystallization tanks connected in series in turn; (5) growing the grains; (6) pre-coating: uniformly coating a filter aid on the filter plate in advance; (7) and (3) filtering: filtering the mixture in the step (5) through a filter plate; (8) purging: blowing and dissolving the wax paste attached to the filter plate, and returning the dissolved product to the step (3); (9) fine filtering; (10) heat exchange: and (3) finally, carrying out heat exchange on the oil subjected to fine filtration and the raw oil newly added in the step (1) to obtain dewaxed oil.
However, the corn oil winterization dewaxing process disclosed by the invention has the problems of unreasonable cooling operation and low winterization crystallization rate.
The patent publication number is CN211688955U, and the china utility model patent that bulletins day is 2020.10.16 discloses a filter equipment is refine to fish oil, the power distribution box comprises a box body, the row's cinder notch has been seted up to the bottom of box, the lower extreme of row's cinder notch has sealed lid through threaded connection, the bottom fixedly connected with fluid-discharge tube of box, the case lid is installed through the bolt in the upper end of box, the upper end fixed mounting of case lid has the motor, the adapter sleeve is installed through the bolt to the lower extreme of the pivot of motor, the lower extreme welding of adapter sleeve has the cartridge filter, the outside bonding of cartridge filter has the filter screen.
However, the fish oil refining and filtering device in the utility model has the problem that the high-freezing point fish oil crystals are easily heated and melted again in the filtering process, and is not suitable for winterization filtering operation.
Disclosure of Invention
The invention provides a fish oil winterization process with secondary slow cooling and used filtering equipment, which can achieve the purpose of high precipitation rate of fish oil with high freezing point by performing two cooling operations of first-speed cooling and then-slow cooling during cooling and stirring and matching with proper standing crystal growing temperature and time length. The method has the advantages of high precipitation rate of the fish oil with high freezing point, good low-temperature maintaining effect in the filtering process of the fish oil crystals, difficult remelting of the fish oil crystals, good effect of removing the fish oil with high freezing point by winterization, high structural stability of the filtering equipment, convenient taking-off of the fish oil crystals and good sealing performance of the filtering structure.
The technical scheme adopted by the invention for solving the problems is as follows: a fish oil winterization process with secondary slow cooling is characterized by sequentially comprising the following steps:
s1, charging fish oil;
s2, cooling and stirring;
s3, standing and growing the grains;
s4, filtering to remove the crystal,
in S2, cooling and stirring are carried out at the same time, the whole time is 2-4h, the stirring speed is kept at 10-15r/min all the time, the front 45-65% of the whole time is a front-stage cooling section, the rest time is a rear-stage cooling section, and the cooling speed of the front-stage cooling section is greater than that of the rear-stage cooling section.
The further preferred technical scheme is as follows: the cooling speed of the early stage cooling section is 4-5 ℃/h, and the cooling speed of the later stage cooling section is 1-3 ℃/h.
The further preferred technical scheme is as follows: in S1, the charging equipment is a crystallizing tank; in S2, cooling and crystallizing are realized in a mode that chilled water circulates in a heat exchange coil in a crystallizing tank; and in S3, stopping stirring, keeping the final temperature of the later cooling section constant, and growing the crystals for 6-8 h.
The filtering equipment comprises a barrel body base, a feeding pipe, a feeding valve and a fish oil pipe, wherein the feeding pipe is used for butt joint of a discharging pipe of a crystallizing tank, the fish oil pipe is arranged on the barrel body base, the filtering equipment further comprises a protruding plate unit arranged on the inner ring surface of the barrel body base, a circular filter screen unit arranged on the protruding plate unit, a combined ring unit, an inverted barrel body and a water cooling pipe, the combined ring unit is in threaded connection with the protruding plate unit and used for tightly pressing and fixing the circular filter screen unit, the inverted barrel body is arranged at the upper position in the combined ring unit and used for installing the feeding pipe, and the water cooling pipe is arranged between the inner ring surface of the combined ring unit and the outer ring surface of the inverted barrel body and.
The further preferred technical scheme is as follows: the convex plate unit comprises a rectangular groove formed in the inner ring surface of the barrel body base outwards, a fixing column arranged between the upper bottom surface and the lower bottom surface of the rectangular groove, a fixing plate arranged between the upper bottom surface and the lower bottom surface of the rectangular groove and protruding to the outer side of the rectangular groove, an arc-shaped threaded section arranged on the protruding outer side surface of the fixing plate and used for mounting the combined ring unit in a threaded manner, a radial plate provided with a column hole for inserting the fixing column and a plate hole for inserting the fixing column, a jacking spring sleeved on the fixing column and used for lifting the circular filter screen unit in a mode of jacking the radial plate after the combined ring unit is taken down, and a spring annular groove arranged on the lower surface of the radial plate and used for clamping and fixing the jacking spring.
The further preferred technical scheme is as follows: the number of the protruding plate units is 4-8, and the protruding plate units are uniformly arranged on the inner annular surface of the barrel body base at intervals.
The further preferred technical scheme is as follows: circular filter screen unit includes that the annular lower surface sets up circular framework on the radial plate upper surface to and annular limit bonding is fixed circular filter screen cloth on the annular framework inner ring face.
The further preferred technical scheme is as follows: the combined ring unit comprises a transverse ring arranged on the annular upper surface of the barrel body base, a lower inner side ring body arranged on the inner side of the lower surface of the transverse ring and used for being inserted between the fixing plate and the circular frame body, and an upper outer side ring body arranged on the outer side of the upper surface of the transverse ring and used for clamping and fixing the water cooling pipe.
The further preferred technical scheme is as follows: the combined ring unit further comprises a barrel body supporting ring arranged on the lower surface of the transverse ring, an annular groove arranged at the lower end of the inner annular surface of the lower inner annular body and used for clamping the circular frame body, an annular external thread arranged on the outer annular surface of the lower inner annular body and used for connecting the arc-shaped thread section, and a limiting ring arranged on the upper surface of the transverse ring and used for clamping the inner annular surface of the inverted barrel body.
The further preferred technical scheme is as follows: the combined ring unit also comprises a support ring arranged on the lower surface of the lower inner side ring body, a frame body radial clamp ring arranged on the annular groove and a frame body upper end clamp ring.
The invention achieves the purpose of high precipitation rate of high-solidification-point fish oil by performing two cooling operations of firstly quick cooling and then slowly cooling, and matching with proper standing crystal growth temperature and time, and the filtering equipment adopted during crystal filtering comprises a barrel body base, a feeding pipe, a feeding valve, a fish oil pipe, a convex plate unit, a circular filter screen unit, a combined ring unit, an inverted barrel body and a water cooling pipe. The method has the advantages of high precipitation rate of the fish oil with high freezing point, good low-temperature maintaining effect in the filtering process of the fish oil crystals, difficult remelting of the fish oil crystals, good effect of removing the fish oil with high freezing point by winterization, high structural stability of the filtering equipment, convenient taking-off of the fish oil crystals and good sealing performance of the filtering structure.
Drawings
FIG. 1 is a schematic view of a filter apparatus according to the present invention.
Fig. 2 is a schematic view showing the position structure of the raised plate unit and the circular screen unit according to the present invention.
Fig. 3 is a schematic structural diagram of the radial plate in a top view.
FIG. 4 is a schematic diagram of the position structure of the combined ring unit according to the present invention.
Detailed Description
The following description is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention.
Example (b): as shown in the attached fig. 1, 2, 3 and 4, the fish oil winterization process with secondary slow cooling sequentially comprises the following steps:
s1, charging fish oil;
s2, cooling and stirring;
s3, standing and growing the grains;
s4, filtering to remove the crystal,
in S2, cooling and stirring are carried out at the same time, the whole time is 2-4h, the stirring speed is kept at 10-15r/min all the time, the front 45-65% of the whole time is a front-stage cooling section, the rest time is a rear-stage cooling section, and the cooling speed of the front-stage cooling section is greater than that of the rear-stage cooling section.
In this example, the starting point of the winterization process is the fish oil that has completed the decolorization process, i.e. in S1, the decolorized fish oil charge.
The cooling speed of the early stage cooling section is 4-5 ℃/h, and the cooling speed of the later stage cooling section is 1-3 ℃/h.
In this embodiment, the cooling rate of the early-stage cooling section is set to be relatively high, so that a large amount of basic high-freezing-point fish oil crystals can be separated out, and the later stage adopts a slower cooling rate, so that the remaining high-freezing-point fish oil which is not separated out can be separated out as much as possible, and the overall separation rate and the overall separation efficiency are finally improved, wherein if the cooling rate is 4-5 ℃/h all the time, the separation rate is not high, and if the cooling rate is 1-3 ℃/h all the time, the separation operation time is too long, and the overall efficiency is not high.
In S1, the charging equipment is a crystallizing tank; in S2, cooling and crystallizing are realized in a mode that chilled water circulates in a heat exchange coil in a crystallizing tank; and in S3, stopping stirring, keeping the final temperature of the later cooling section constant, and growing the crystals for 6-8 h.
In this embodiment, the other non-mentioned parts in the winterization process are performed in the manner of the prior art, so as to ensure high precipitation rate and relatively short precipitation time after the secondary slow cooling.
A filtering device for a fish oil winterization process with secondary slow cooling comprises a barrel body base 11, a feeding pipe 12 for butting a discharging pipe of a crystallizing tank, a feeding valve 13, a fish oil pipe 14 arranged on the barrel body base 11, a protruding plate unit 1 arranged on the inner annular surface of the barrel body base 11, a circular filter screen unit 2 arranged on the protruding plate unit 1, a combined ring unit 3 arranged on the protruding plate unit 1 in a threaded mode and used for pressing and fixing the circular filter screen unit 2, an inverted barrel body 4 arranged at the upper position in the combined ring unit 3 and used for installing the feeding pipe 12, and a spiral water cooling pipe 5 arranged between the inner annular surface of the combined ring unit 3 and the outer annular surface of the inverted barrel body 4.
In this embodiment, feed valve 13 is current stop valve, inlet pipe 12 sets up on the top staving bottom plate of inversion staving 4, the material of water cooling pipe 5 is the stainless steel of easy heat conduction, connects current water cooler, guarantees inversion staving 4 and 11 butt joints the whole inside temperature relative reduction that form can, avoid the fish oil crystal to take place the remelting problem by a wide margin, guarantee finally that the crystallization precipitation rate of high freezing point fish oil, be the final purpose of winterization technology promptly.
The protruding plate unit 1 comprises a rectangular groove 101 formed in the inner ring surface of the barrel body base 11 in an outward mode, a fixing column 102 arranged between the upper bottom surface and the lower bottom surface of the rectangular groove 101, a fixing plate 103 arranged between the upper bottom surface and the lower bottom surface of the rectangular groove 101 and protruding to the outer side of the rectangular groove 101, an arc-shaped threaded section 104 arranged on the protruding outer side surface of the fixing plate 103 and used for mounting the combined ring unit 3 in a threaded mode, a radial plate 107 provided with a column hole 105 and used for inserting the fixing column 102 and a plate hole 106 and used for inserting the fixing column 102, a jacking spring 108 sleeved on the fixing column 102 and used for lifting the circular filter screen unit 2 in a mode of jacking the radial plate 107 after the combined ring unit 3 is taken down, and a spring annular groove 109 arranged on the lower surface of the radial plate 107 and used for clamping and fixing the jacking spring 108. The number of the protruding plate units 1 is 4-8, and the protruding plate units are uniformly arranged on the inner annular surface of the barrel body base 11 at intervals.
In this embodiment, the arc-shaped threaded section 104 is used for stably mounting the combined ring unit 3 in a threaded manner, so that the inverted barrel body 4 can be stably butted with the barrel body base 11 to form a relatively closed cavity for filtering fish oil and reducing the fish oil and facilitating cooling, and the fixed column 102 reinforces the fixed plate 103, so that the radial plate 107 can only vertically lift, and the problem of unnecessary rotational offset is avoided.
In addition, after the combined ring unit 3 with the inverted barrel body 4 and the water cooling pipe 5 are removed, the jacking spring 108 can jack up the radial plate 107, namely jack up the circular filter screen unit 2, so that fish oil crystals on the upper surface of the circular filter screen unit 2 can be conveniently taken down, an operator does not need to stretch the fish oil crystals into the barrel body base 11, and the combined ring unit 3 can recover to an initial state and can be reused when being installed with the arc-shaped threaded section 104 again.
Circular filter screen unit 2 includes that the annular lower surface sets up circular framework 201 on the radial plate 107 upper surface to and the annular limit bonds and fixes circular filter screen cloth 202 on the annular framework 201 inner ring face.
In this embodiment, the material of the circular filter screen cloth 202 is a conventional gauze.
The combined ring unit 3 includes a transverse ring 301 disposed on the annular upper surface of the barrel base 11, a lower inner ring 302 disposed inside the lower surface of the transverse ring 301 and inserted between the fixing plate 103 and the circular frame 201, and an upper outer ring 303 disposed outside the upper surface of the transverse ring 301 and having an inner ring surface for clamping and fixing the water cooling pipe 5. The unitized ring unit 3 further includes a barrel support ring 304 disposed on the lower surface of the lateral ring 301, an annular groove 305 disposed at the lower end of the inner annular surface of the lower inner annular body 302 and adapted to engage with the circular frame 201, an annular external thread 306 disposed on the outer annular surface of the lower inner annular body 302 and adapted to connect with the arc-shaped thread segments 104, and a stopper ring 307 disposed on the upper surface of the lateral ring 301 and adapted to clamp the inner annular surface of the inverted barrel 4. The combined ring unit 3 further includes a support ring 308 disposed on the lower surface of the lower inner ring body 302, a frame radial clamp ring 309 disposed on the annular groove 305, and a frame upper end clamp ring 310.
In this embodiment, the barrel support ring 304 abuts against the annular upper surface of the barrel base 11, that is, the maximum downward screwing depth of the lower inner ring 302 on the arc-shaped threaded section 104 is obtained, at this time, the combined ring unit 3 is completely installed, in this state, the ring external threads 306 are screwed with all the number of the arc-shaped threaded sections 104, and the limit ring 307 is used for clamping the limit ring 307, so as to prevent the limit ring 307 from being easily deviated.
Finally, the support ring 308, the frame radial clamp ring 309, and the frame upper clamp ring 310 are made of high-strength rubber as the barrel support ring 304, so that the lower inner ring 302 and the circular frame 201 are sealed and clamped, and a large amount of fish oil does not leak.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various modifications can be made within the knowledge of those skilled in the art without departing from the gist of the present invention. These are non-inventive modifications, which are intended to be protected by patent laws within the scope of the claims appended hereto.
Claims (10)
1. A fish oil winterization process with secondary slow cooling is characterized by sequentially comprising the following steps:
s1, charging fish oil;
s2, cooling and stirring;
s3, standing and growing the grains;
s4, filtering to remove the crystal,
in S2, cooling and stirring are carried out at the same time, the whole time is 2-4h, the stirring speed is kept at 10-15r/min all the time, the front 45-65% of the whole time is a front-stage cooling section, the rest time is a rear-stage cooling section, and the cooling speed of the front-stage cooling section is greater than that of the rear-stage cooling section.
2. The fish oil winterization process with secondary slow cooling according to claim 1, characterized in that: the cooling speed of the early stage cooling section is 4-5 ℃/h, and the cooling speed of the later stage cooling section is 1-3 ℃/h.
3. The fish oil winterization process with secondary slow cooling according to claim 1, characterized in that: in S1, the charging equipment is a crystallizing tank; in S2, cooling and crystallizing are realized in a mode that chilled water circulates in a heat exchange coil in a crystallizing tank; and in S3, stopping stirring, keeping the final temperature of the later cooling section constant, and growing the crystals for 6-8 h.
4. A filtering apparatus for a secondary slow cooling fish oil winterization process according to claim 1, including a base (11), a feed pipe (12) for docking a crystallizer discharge pipe, a feed valve (13), and a fish oil pipe (14) disposed on the base (11), characterized in that: the water cooling barrel is characterized by further comprising a protruding plate unit (1) arranged on the inner annular surface of the barrel body base (11), a circular filter screen unit (2) arranged on the protruding plate unit (1), a combined ring unit (3) which is arranged on the protruding plate unit (1) in a threaded mode and used for pressing and fixing the circular filter screen unit (2), an inverted barrel body (4) which is arranged at the position above the inner portion of the combined ring unit (3) and used for installing the feeding pipe (12), and a spiral water cooling pipe (5) which is arranged between the inner annular surface of the combined ring unit (3) and the outer annular surface of the inverted barrel body (4).
5. The filtering equipment used in the fish oil winterization process with secondary slow cooling according to claim 4, is characterized in that: the protruding plate unit (1) comprises a rectangular groove (101) formed outwards from the inner ring surface of a barrel body base (11), a fixing column (102) arranged between the upper bottom surface and the lower bottom surface of the rectangular groove (101), a fixing plate (103) arranged between the upper bottom surface and the lower bottom surface of the rectangular groove (101) and protruding to the outer side of the rectangular groove (101), an arc-shaped thread section (104) arranged on the protruding outer side surface of the fixing plate (103) and used for mounting the combined ring unit (3) in a threaded manner, a radial plate (107) provided with a column hole (105) and used for inserting the fixing column (102) and a plate hole (106) and used for inserting the fixing column (102), and a jacking spring (108) sleeved on the fixing column (102) and used for lifting the circular filter screen unit (2) in a jacking manner of jacking the radial plate (107) after the combined ring unit (3) is taken down, and a spring annular groove (109) provided on the lower surface of the radial plate (107) and adapted to engage and fix the jack-up spring (108).
6. The filtering equipment used in the fish oil winterization process with secondary slow cooling according to claim 5, is characterized in that: the number of the protruding plate units (1) is 4-8, and the protruding plate units are uniformly arranged on the inner annular surface of the barrel body base (11) at intervals.
7. The filtering equipment used in the fish oil winterization process with secondary slow cooling according to claim 5, is characterized in that: circular filter screen unit (2) include that the annular lower surface sets up circular framework (201) on radial plate (107) upper surface to and annular limit bonding is fixed circular filter screen cloth (202) on circular framework (201) inner ring surface.
8. The filtering equipment used in the fish oil winterization process with secondary slow cooling according to claim 7, is characterized in that: the combined ring unit (3) comprises a transverse ring (301) arranged on the annular upper surface of the barrel body base (11), a lower inner side ring body (302) arranged on the inner side of the lower surface of the transverse ring (301) and used for being inserted between the fixing plate (103) and the circular frame body (201), and an upper outer side ring body (303) arranged on the outer side of the upper surface of the transverse ring (301) and used for clamping and fixing the water cooling pipe (5) on the inner ring surface.
9. The filtering equipment used in the fish oil winterization process with secondary slow cooling according to claim 8, is characterized in that: the combined ring unit (3) further comprises a barrel body supporting ring (304) arranged on the lower surface of the transverse ring (301), an annular groove (305) arranged at the lower end of the inner ring surface of the lower inner ring body (302) and used for clamping the circular frame body (201), a ring body external thread (306) arranged on the outer ring surface of the lower inner ring body (302) and used for connecting the arc-shaped thread section (104), and a limiting ring (307) arranged on the upper surface of the transverse ring (301) and used for clamping the inner ring surface of the inverted barrel body (4).
10. The filtering equipment used in the fish oil winterization process with secondary slow cooling according to claim 9, is characterized in that: the combined ring unit (3) further comprises a support ring (308) arranged on the lower surface of the lower inner ring body (302), a frame body radial compression ring (309) arranged on the annular groove (305), and a frame body upper end compression ring (310).
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| CN109370781A (en) * | 2018-12-03 | 2019-02-22 | 福建高龙海洋生物工程有限公司 | A kind of high EPA, DHA content deep sea fish oil processing technology |
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2020
- 2020-12-29 CN CN202011593417.5A patent/CN112552998A/en active Pending
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Application publication date: 20210326 |