CN108611185B - Deodorization device and deodorization process for small algae oil - Google Patents
Deodorization device and deodorization process for small algae oil Download PDFInfo
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- CN108611185B CN108611185B CN201810563065.5A CN201810563065A CN108611185B CN 108611185 B CN108611185 B CN 108611185B CN 201810563065 A CN201810563065 A CN 201810563065A CN 108611185 B CN108611185 B CN 108611185B
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- 241000195493 Cryptophyta Species 0.000 title claims abstract description 198
- 238000004332 deodorization Methods 0.000 title claims abstract description 68
- 238000000034 method Methods 0.000 title claims abstract description 22
- 239000003921 oil Substances 0.000 claims abstract description 292
- 239000010724 circulating oil Substances 0.000 claims abstract description 103
- 238000012856 packing Methods 0.000 claims abstract description 87
- 238000010438 heat treatment Methods 0.000 claims abstract description 35
- 230000001877 deodorizing effect Effects 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims description 22
- 239000010935 stainless steel Substances 0.000 claims description 22
- 230000001681 protective effect Effects 0.000 claims description 21
- 238000005070 sampling Methods 0.000 claims description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 239000000498 cooling water Substances 0.000 claims description 6
- 239000011148 porous material Substances 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000004064 recycling Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 8
- 239000000945 filler Substances 0.000 description 8
- 239000007789 gas Substances 0.000 description 7
- 239000007921 spray Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- 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
- C11B3/008—Refining fats or fatty oils by filtration, e.g. including ultra filtration, dialysis
-
- 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
- C11B3/12—Refining fats or fatty oils by distillation
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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)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a deodorizing device and deodorizing process for small algae oil, which are characterized in that: the device comprises a cylinder body and a packing tower, wherein the bottom of the packing tower is communicated with the top of the cylinder body, the bottom of the cylinder body is provided with an oil port, and the oil port is connected with the top of the packing tower through a circulating oil pipe; the circulating oil pipe is provided with an algae oil inlet and outlet port, and the algae oil inlet and outlet port is arranged close to the oil port; at least one group of steam heating coils are arranged in the cylinder, an air inlet of each steam heating coil is arranged on the side wall of the middle part of the cylinder, and a condensate water outlet of each steam heating coil is arranged at the bottom of the cylinder; a deodorizing mechanism is arranged in the cylinder body and comprises a superheated steam pipe, and an air outlet of the superheated steam pipe is arranged in the cylinder body; the deodorization process comprises the following steps: (1) preheating algae oil; (2) recycling algae oil; (3) and (5) deodorizing by high-temperature steam. The invention realizes deodorization of a small amount of algae oil, ensures the quality of the algae oil and reduces the deodorization cost.
Description
Technical Field
The invention relates to the field of algae oil processing, in particular to a deodorizing device and deodorizing process for small algae oil.
Background
In the prior art, when the algae oil is deodorized in small-scale production, a stripping pipeline is arranged in the middle of the cylinder, steam is used for stripping and deodorizing under the vacuum condition, in this way, the contact area of steam and the algae oil is small, the deodorizing efficiency is low, the deodorizing stability is poor due to the existence of hydrostatic pressure of a liquid column,
in addition, if deodorization is performed in a large scale, a large-scale deodorization tower is generally used, the operation cost of the large-scale deodorization tower is high, and the basic operation condition of the large-scale deodorization tower cannot be achieved for a small amount of algae oil, for example, several tens of kg or several hundreds of kg. Moreover, if a large deodorizing tower is used in a strong manner, the algae oil is wasted greatly, and the cost is increased. Therefore, how to solve the above technical problems is a direction that a person skilled in the art needs to make efforts.
Disclosure of Invention
The invention aims to provide a small algae oil deodorization device and a deodorization process, which increase the contact area of steam and oil, realize twice steam deodorization and improve deodorization efficiency and stability through a combined structure of a cylinder body and a small packing tower.
In order to achieve the above purpose, the invention adopts the following technical scheme: the small algae oil deodorizing device comprises a cylinder body and a packing tower arranged at the top of the cylinder body, wherein the bottom of the packing tower is communicated with a top flange of the cylinder body, the bottom of the cylinder body is provided with an oil port, and the oil port is connected with a top sealing head of the packing tower through a circulating oil pipe; the circulating oil pipe is provided with an algae oil inlet and outlet port, and the algae oil inlet and outlet port is arranged close to the oil port; at least one group of steam heating coils are arranged in the cylinder, an air inlet of each steam heating coil is arranged on the side wall of the middle part of the cylinder, and a condensate water outlet of each steam heating coil is arranged at the bottom of the cylinder; the utility model discloses a deodorization mechanism, including the barrel, be equipped with a deodorization mechanism in the barrel, deodorization mechanism includes the superheated steam pipe, the gas outlet of superheated steam pipe set up in the barrel, the gas outlet of superheated steam pipe is towards the barrel top sets up, the air inlet of superheated steam pipe set up in the bottom of barrel.
In the above technical scheme, still be equipped with a protection cover outside the gas outlet of superheated steam pipe, the safety cover is both ends open-ended tubaeform structure, the open-top diameter of safety cover is greater than the bottom open-ended diameter, the gas outlet of superheated steam pipe is inserted and is located in the safety cover, just the gas outlet of superheated steam pipe is close to the bottom setting of safety cover, the bottom of safety cover through a plurality of connecting rods with the outer fringe face of superheated steam pipe links to each other.
In the above technical scheme, an arc baffle is still installed at the top of safety cover, arc baffle's opening sets up downwards, arc baffle's width is greater than the opening width at safety cover top, arc baffle through a plurality of backup pads with the outer fringe face of safety cover links to each other, just arc baffle's bottom surface with be equipped with the clearance between the top surface of safety cover.
In the above technical scheme, the circulating oil pipe is provided with a circulating oil pump, a heat exchanger and a flowmeter, the heat exchanger is arranged between the circulating oil pump and the flowmeter, and the algae oil inlet and outlet port is arranged between the circulating oil pump and the oil port; the top of the packing tower is a circulating oil inlet, the bottom of the packing tower is a circulating oil outlet, the flowmeter is arranged close to the circulating oil inlet of the packing tower, the circulating oil outlet of the packing tower is arranged at the top of the cylinder, and the circulating oil outlet is communicated with the top of the cylinder.
In the above technical scheme, a sampling port is further arranged on the circulating oil pipe between the heat exchanger and the circulating oil pump; and the circulating oil pipe is also connected with a return pipe in parallel, one end of the return pipe is connected with the circulating oil pipe at the oil inlet end of the circulating oil pump, and the other end of the return pipe is connected with the circulating oil pipe at the oil outlet end of the circulating oil pump.
In the technical scheme, the top of the packing tower is a circulating oil inlet, the bottom of the packing tower is a circulating oil outlet, and stainless steel orifice plate corrugated packing is arranged in the packing tower; the device comprises a packing tower, a circulating oil inlet at the top of the packing tower, an algae oil collecting screen and an oil distributor, wherein the algae oil collecting screen is arranged at the top of the circulating oil inlet, the top of the oil distributor is arranged on the algae oil collecting screen, the bottom of the oil distributor is inserted into the packing tower, and a stainless steel pore plate corrugated packing is arranged under the oil distributor; the oil distributor is also provided with a vacuum pump, the vacuum pump is connected with a circulating oil inlet of the packing tower through a vacuum pipe, the circulating oil pipe penetrates through the vacuum pipe and is connected with the top of the oil distributor, and the end part of the vacuum pipe is covered on the algae oil trapping screen.
In the above technical scheme, the oil distributor includes oil outlet pipe, loudspeaker type guard shield and first arc baffle, the bottom opening of loudspeaker type guard shield is greater than open-top, the top of oil outlet pipe with circulating oil pipe links to each other, the bottom of oil outlet pipe is inserted and is located in the loudspeaker type guard shield, the bottom of oil outlet pipe set up in the middle part of loudspeaker type guard shield, the top inner edge face of loudspeaker type guard shield with the outer edge face of oil outlet pipe is fixed to be linked to each other, the opening of first arc baffle sets up, the diameter of first arc baffle is less than the diameter of loudspeaker type guard shield bottom, first arc baffle inserts and locates the bottom of loudspeaker type guard shield, just first arc baffle top outer edge face through two at least solder joints with the inside welding of loudspeaker type guard shield links to each other, be equipped with the clearance of giving vent to anger between the outer edge face of first arc baffle with the inner edge face of loudspeaker type guard shield.
In the technical scheme, the algae oil trapping screen comprises a plurality of layers of annular screens, and grids between adjacent annular screens are arranged in a staggered manner; the top of the uppermost layer of annular screen is provided with two limiting plates, and the two limiting plates respectively penetrate through a plurality of layers of annular screen through bolts and are fixed at the top of the packing tower.
In order to achieve the purpose, the invention adopts a small algae oil deodorization process, which comprises the following steps:
(1) the vacuum pump works to vacuumize the packing tower and the cylinder, and then the algae oil is sucked from the bottom of the cylinder under negative pressure;
(2) high-temperature steam is introduced into the steam heating coil pipe, so that the high-temperature steam enters from the air inlet of the steam heating coil pipe and is sent out from the condensed water outlet, and the algae oil in the cylinder body is heated by the steam heating coil pipe, so that the algae oil in the cylinder body is heated to 145-160 ℃;
(3) after the algae oil is heated to 145-160 ℃, high-temperature steam is closed, at the moment, a circulating oil pump is started again, the algae oil in the cylinder body is pumped into a circulating oil pipe from the bottom of the cylinder body by using the circulating oil pump, the algae oil is heated to 160-240 ℃ by a heat exchanger and then is conveyed to the top of a packing tower, and then the algae oil flows back into the cylinder body after passing through a stainless steel orifice plate corrugated packing from the top of the packing tower;
(4) after the algae oil starts to circulate through the circulation oil pipe and the packing tower and returns to the barrel, the superheated steam pipe is led with the superheated steam to lead the superheated steam to go upwards, and the algae oil is directly contacted with the algae oil in the barrel and the packing tower for deodorization, and the process lasts for 1-5 hours;
(5) after the algae oil circulates and contacts with the superheated steam for 1 hour, sampling and detecting the algae oil through a sampling port on a circulating oil pipe, and if the algae oil is unqualified in deodorization, continuing circulating deodorization;
(6) in the step (5), if the deodorization detection of the algae oil is qualified, the heat exchanger stops working, the superheated steam is closed, then the algae oil is cooled by using cooling water in a cooling water channel steam heating coil pipe, the algae oil is cooled to below 50 ℃, a circulating oil pump is closed, and the deodorized algae oil is extruded by using nitrogen from an oil port at the bottom of a cylinder body, so that the algae oil is taken out from an algae oil inlet and outlet port, and the deodorization of the algae oil is completed;
in the above technical scheme, in the step (4), the circulating oil pump pumps the algae oil at the bottom of the cylinder to the top of the packing tower, the algae oil uniformly flows onto the stainless steel orifice corrugated packing through the oil distributor, the superheated steam sent out by the superheated steam pipe is firstly subjected to contact deodorization with the algae oil in the cylinder, then the superheated steam moves upwards, enters the packing tower, and is subjected to sufficient contact deodorization with the algae oil on the stainless steel orifice corrugated packing.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
1. according to the invention, the filler tower is arranged above the cylinder, and the algae oil in the cylinder is pumped to the top of the filler tower from bottom to top by the circulating oil pump, so that the algae oil can uniformly flow from top to bottom from the filler tower, the contact area of the algae oil and steam is effectively increased, the deodorization efficiency and deodorization effect are improved, and the deodorization cost is reduced;
2. according to the invention, the superheated steam pipe is arranged in the barrel, and the superheated steam pipe is utilized to directly spray the high-heat steam into the barrel and directly contact with the algae oil in the barrel, so that the deodorization efficiency and deodorization effect of the algae oil can be effectively improved, the deodorization device is suitable for deodorization of small algae oil equipment, can be used for deodorization of a small amount of algae oil, prevents waste of algae oil and reduces deodorization cost;
3. according to the invention, the protective cover and the arc-shaped baffle are arranged at the air outlet of the superheated steam pipe, so that when the superheated steam pipe sprays high-heat steam, the arrangement of the protective cover and the arc-shaped baffle can enable the steam to flow back in the protective cover and the arc-shaped baffle, thereby effectively increasing the contact time and the contact area with algae oil and improving the deodorization effect;
4. according to the invention, through the arrangement of the oil distributor, algae oil can be uniformly dropped onto the stainless steel pore plate corrugated filler of the filler tower, so that the contact area of steam and algae oil is effectively ensured, and the deodorization effect is improved;
5. according to the invention, the algae oil trapping screen is arranged, so that algae oil carried in the steam rising process can be trapped by the algae oil trapping screen, the algae oil can be prevented from being pumped away, the waste of the algae oil is prevented, and the cost is effectively reduced;
6. according to the invention, the algae oil circulates in the cylinder and the packed tower, and the algae oil is contacted with the algae oil by utilizing the continuous circulation of high-heat steam, so that the contact area and contact time of the algae oil and the steam can be effectively increased, and the deodorizing effect is improved.
Drawings
FIG. 1 is a schematic view of a first embodiment of the present invention;
FIG. 2 is a schematic view of a barrel according to a first embodiment of the present invention;
FIG. 3 is a schematic view showing the structure of the superheated steam pipe at the outlet of the superheated steam pipe according to the first embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of the top outlet of the packing column in accordance with the first embodiment of the present invention;
FIG. 5 is a bottom view of an oil distributor according to one embodiment of the present invention;
fig. 6 is a top view of an algae oil trapping screen in accordance with an embodiment of the present invention.
Wherein: 1. a cylinder; 2. a packed tower; 3. an oil port; 4. a circulation oil pipe; 5. algae oil inlet and outlet ports; 6. a steam heating coil; 7. a condensed water outlet; 8. a superheated steam tube; 9. a protective cover; 10. a connecting rod; 11. an arc baffle; 12. a support plate; 13. a circulating oil pump; 14. a heat exchanger; 15. a flow meter; 16. a sampling port; 17. a return pipe; 18. corrugated packing of stainless steel pore plates; 19. algae oil trapping screen; 20. an oil distributor; 21. a vacuum pump; 22. a vacuum tube; 23. an oil outlet pipe; 24. a horn-shaped shield; 25. a first arcuate baffle; 26. welding spots; 27. an air outlet gap; 28. an annular screen; 29. a limiting plate; 30. a bolt; 31. a steam line; 32. a first heat exchanger; 33. a steam inlet; 34. a steam outlet; 35. a conduction oil inlet; 36. a heat transfer oil outlet; 37. a through hole; 38. a flange; 39. and (5) sealing head.
Detailed Description
The invention is further described below with reference to the accompanying drawings and examples:
embodiment one: referring to fig. 1-6, a small algae oil deodorization device comprises a barrel 1 and a packing tower 2 arranged at the top of the barrel 1, wherein the bottom of the packing tower 2 is communicated with a top flange 38 of the barrel 1, an oil port 3 is arranged at the bottom of the barrel 1, and the oil port 3 is connected with a top seal head 39 of the packing tower 2 through a circulating oil pipe 4; the circulating oil pipe 4 is provided with an algae oil inlet and outlet port 5, and the algae oil inlet and outlet port 5 is arranged close to the oil port 3; at least one group of steam heating coils 6 are arranged in the cylinder 1, an air inlet of each steam heating coil 6 is arranged on the side wall of the middle part of the cylinder 1, and a condensate water outlet 7 of each steam heating coil 6 is arranged at the bottom of the cylinder; be equipped with a deodorization mechanism in barrel 1, deodorization mechanism includes superheated steam pipe 8, the gas outlet of superheated steam pipe 8 set up in barrel 1, the gas outlet of superheated steam pipe 8 is towards barrel 1 top sets up, the air inlet of superheated steam pipe 8 set up in the bottom of barrel 1.
In the embodiment, the equipment is particularly suitable for deodorizing small batches of algae oil, and can perform deodorization of tens of kilograms or hundreds of kilograms of algae oil at a time; the method can also be used for deodorizing the algae oil in the scale of several tons or even 10 tons per batch, but the large-scale algae oil deodorization has more mature deodorization process equipment to be selected, and the method is not necessarily the optimal scheme compared with the mature process in aspects of material conveying, manual work and the like. The algae oil inlet and outlet interface is used for adding the algae oil which is not decolorized into the cylinder, and the algae oil after deodorization is sent out from the algae oil inlet and outlet interface, so that the algae oil can be added and discharged only by one interface. The inside of the steam heating coil is filled with high-temperature steam, so that the steam heating coil can be heated, and the algae oil is preheated by the steam in the steam heating coil, so that the algae oil in the cylinder body is heated to a certain temperature. The superheated steam pipe directly sprays high-temperature steam, and directly contacts with the algae oil in the cylinder to deodorize the algae oil.
Referring to fig. 2 and 3, a protective cover 9 is further arranged outside the air outlet of the superheated steam pipe 8, the protective cover 9 is of a horn-shaped structure with two open ends, the diameter of the top opening of the protective cover 9 is larger than that of the bottom opening, the air outlet of the superheated steam pipe is inserted into the protective cover, the air outlet of the superheated steam pipe is close to the bottom of the protective cover, and the bottom of the protective cover 9 is connected with the outer edge surface of the superheated steam pipe 8 through a plurality of connecting rods 10.
The top of safety cover 9 still installs an arc baffle 11, the opening of arc baffle 11 sets up down, arc baffle's width is greater than the opening width at safety cover top, arc baffle 11 through a plurality of backup pads 12 with the outer fringe face of safety cover links to each other, just arc baffle's bottom surface with be equipped with the clearance between the top surface of safety cover.
In this embodiment, the superheated steam ejected from the superheated steam pipe is directly ejected into the algae oil, because of the existence of the protecting cover and the arc-shaped baffle, the superheated steam is ejected into the protecting cover, the superheated steam moves upwards, the superheated steam can drive the algae oil to move upwards at the same time, so that the algae oil moves upwards from the bottom of the protecting cover, and then is sent out from the gap between the arc-shaped baffle and the protecting cover, because the algae oil in the protecting cover is sent out a part, in order to supplement the algae oil in the protecting cover, other algae oil can enter the protecting cover from the bottom of the protecting cover, and continuously contacts with the superheated steam ejected from the superheated steam pipe, and continuously drives the algae oil to flow, through the arrangement of the protecting cover and the arc-shaped baffle, so that the superheated steam can drive the algae oil to flow along the flowing direction of the algae oil, and can effectively increase the contact area and the contact time of the algae oil and the high-temperature steam, and effectively improve the deodorization effect of the algae oil.
Referring to fig. 1, the circulating oil pipe 4 is provided with a circulating oil pump 13, a heat exchanger 14 and a flowmeter 15, the heat exchanger is arranged between the circulating oil pump and the flowmeter, and the algae oil inlet and outlet port is arranged between the circulating oil pump and the oil port; the top of the packing tower is a circulating oil inlet, the bottom of the packing tower is a circulating oil outlet, the flowmeter is arranged close to the circulating oil inlet of the packing tower, the circulating oil outlet of the packing tower is arranged at the top of the cylinder, and the circulating oil outlet is communicated with the top of the cylinder.
In this embodiment, through setting up of circulation oil pump, heat exchanger and flowmeter, after steam heating coil heats the algae oil in the barrel to certain temperature (steam heating coil can only heat the algae oil in this temperature range, just can't continue the heating with the algae oil again), then circulation oil pump opens, take out the algae oil in the barrel from the bottom of barrel, enter into in the heat exchanger, continue to heat the algae oil through the heat exchanger, wherein, the velocity of flow of algae oil is controlled through the flowmeter, can guarantee like this that the algae oil is at the deodorization temperature that heats to the settlement through the heat exchanger, the flow that also guarantees that the algae oil enters into in the filler tower is stable and suitable simultaneously.
Referring to fig. 1, a sampling port 16 is further provided on the circulation oil pipe between the heat exchanger 14 and the circulation oil pump 13; and the circulating oil pipe 4 is also connected with a return pipe 17 in parallel, one end of the return pipe is connected with the circulating oil pipe at the oil inlet end of the circulating oil pump, and the other end of the return pipe is connected with the circulating oil pipe at the oil outlet end of the circulating oil pump.
Through the setting of sampling port, after deodorization a period of time like this, operating personnel can sample detection to the algae oil through the sampling port, detects whether qualified, can guarantee the deodorization effect of algae oil like this. Meanwhile, under normal conditions, the pressure selected by the circulating oil pump is larger than the flowing pressure required by algae oil, if the circulating oil pump runs in a low-pressure state for a long time, the circulating oil pump is easy to damage, therefore, through the arrangement of the return pipe, algae oil pumped by the circulating oil pump can also pass through the inlet of the circulating oil pump through the return pipe flow channel, the pressure of the circulating oil pump can be increased, the operating state of the circulating oil pump under normal pressure is ensured, and the service life of the circulating oil pump is effectively ensured.
Referring to fig. 1 and 4-6, the top of the packing tower 2 is a circulating oil inlet, the bottom is a circulating oil outlet, and a stainless steel orifice plate corrugated packing 18 is arranged in the packing tower; an algae oil collecting screen 19 and an oil distributor 20 are arranged at the circulating oil inlet at the top of the packing tower 2, the algae oil collecting screen is arranged at the top of the circulating oil inlet, the top of the oil distributor is arranged on the algae oil collecting screen, the bottom of the oil distributor is inserted into the packing tower, and the stainless steel orifice plate corrugated packing is arranged under the oil distributor; the oil distributor is also provided with a vacuum pump 21, the vacuum pump 21 is connected with a circulating oil inlet of the packed tower through a vacuum tube 22, the circulating oil tube 4 passes through the vacuum tube 22 to be connected with the top of the oil distributor 20, and the end part of the vacuum tube is covered on the algae oil collecting screen.
The vacuum pump is used for vacuumizing, can drive high-temperature steam to rise, and ensures that algae oil is in a vacuum state in the deodorization process. Wherein, stainless steel orifice plate ripple packing is the buckled plate laminating that adopts the polylith to bend together, be provided with a plurality of through-holes on the face of bending of every buckled plate, like this with the even distribution drip of algae oil above stainless steel orifice plate ripple packing at the oil distributor, algae oil can be even flow above stainless steel orifice plate ripple packing, flow towards the lower floor through the through-hole, in this in-process, algae oil will even flow on stainless steel orifice plate ripple packing's buckled plate, the algae oil of same weight can even dispersion be opened, the in-process that superheated steam from bottom to top removed like this, superheated steam can be abundant with each bubble contact of algae oil, effectually improve deodorization efficiency and deodorization effect.
Referring to fig. 4 and 5, the oil distributor 20 includes an oil outlet pipe 23, a horn-shaped shield 24 and a first arc-shaped baffle 25, the bottom opening of the horn-shaped shield is larger than the top opening, the top of the oil outlet pipe is connected with the circulating oil pipe, the bottom of the oil outlet pipe is inserted in the horn-shaped shield, the bottom of the oil outlet pipe is arranged in the middle of the horn-shaped shield, the top inner edge surface of the horn-shaped shield is fixedly connected with the outer edge surface of the oil outlet pipe, the opening of the first arc-shaped baffle is upward, the diameter of the first arc-shaped baffle is smaller than the diameter of the bottom of the horn-shaped shield, the first arc-shaped baffle is inserted in the bottom of the horn-shaped shield, the top outer edge surface of the first arc-shaped baffle 25 is connected with the inside welding of the horn-shaped shield through at least two welding spots 26, and an air outlet gap 27 is arranged between the outer edge surface of the first arc-shaped baffle and the inner edge surface of the horn-shaped shield. (the first baffle may be tapered or curved under normal conditions)
In this embodiment, the algae oil that circulates from the bottom gets into the oil distributor and strikes on the baffle, and the oil that splashes is kept off by the loudspeaker guard shield, then falls to the filler along loudspeaker guard shield wall, and other oils overflow around the baffle of first arc, under the condition that does not have the interference, most oils can fall down from the middle of the baffle of first arc, because superheated steam from down upwards moves, the in-process that superheated steam risees can jack up algae oil upwards, like this algae oil can fall in the middle of stainless steel orifice plate ripple filler along whole baffle bottom at random, can reach evenly distributed's effect under the continuous feeding condition.
Referring to fig. 4 and 6, the algae oil capturing screen 19 includes a plurality of annular screens 28, and grids between adjacent annular screens are staggered; two limiting plates 29 are arranged at the top of the uppermost annular screen, and the two limiting plates 29 penetrate through a plurality of layers of annular screens respectively through bolts 30 and are fixed at the top of the packed tower. Wherein, a through hole 37 is arranged in the middle of each layer of annular screen mesh and is used for mounting an oil outlet pipe.
The steam can be sent out upwards from the outer edge of the horn-shaped shield, trace algae oil can be carried in the superheated steam by ascending airflow, and the steam can be contacted with the screen layer by layer through the arrangement of the algae oil collecting screen, so that the screen can block the algae oil and flow back into the tower, the algae oil is prevented from being sent out, the waste of the algae oil is prevented, and the cost is effectively reduced.
In order to achieve the above purpose, the invention adopts a small algae oil deodorization process, which comprises the following steps:
(1) the vacuum pump works to vacuumize the packing tower and the barrel, and then the algae oil is sucked into the barrel from the algae oil inlet and outlet port at the bottom of the barrel under negative pressure;
(2) high-temperature steam is introduced into the steam heating coil pipe, so that the high-temperature steam enters from the air inlet of the steam heating coil pipe and is sent out from the condensed water outlet, the algae oil in the cylinder body is heated by the steam heating coil pipe, so that the algae oil in the cylinder body is heated to 145-160 ℃ (the steam heating coil pipe can only heat the algae oil to the temperature, and the algae oil cannot be continuously heated for a long time;
(3) after the algae oil is heated to 145-160 ℃, high-temperature steam is not introduced into the steam heating coil, at the moment, a circulating oil pump is started again, the algae oil in the cylinder body is pumped into a circulating oil pipe from the bottom of the cylinder body by the circulating oil pump, the algae oil is heated to 160-240 ℃ by a heat exchanger and then is conveyed to the top of a packing tower, and then flows back into the cylinder body after passing through a stainless steel orifice plate corrugated packing from the top of the packing tower;
(4) after the algae oil starts to circulate through the circulation oil pipe and the packing tower and returns to the barrel, the superheated steam pipe is led with the superheated steam to lead the superheated steam to go upwards, and the algae oil is directly contacted with the algae oil in the barrel and the packing tower for deodorization, and the process lasts for 1-5 hours; wherein, the flow of algae oil circulation is controlled by a flowmeter.
(5) After the algae oil circulates and contacts with the high-temperature steam for 1 hour, sampling and detecting the algae oil through a sampling port on the circulating oil pipe, and if the algae oil is unqualified in deodorization, continuing circulating deodorization;
(6) in the step (5), if the deodorization detection of the algae oil is qualified, the heat exchanger stops working, the superheated steam is closed, then the algae oil is cooled by using cooling water in a cooling water channel steam heating coil, the algae oil is cooled to below 50 ℃, a circulating oil pump is closed, and the deodorized algae oil is extruded by nitrogen from an oil port at the bottom of the cylinder body, so that the algae oil is taken out from an algae oil inlet and outlet port, and the deodorization of the algae oil is completed.
In the step (4), the circulating oil pump pumps the algae oil at the bottom of the cylinder to the top of the packing tower, the algae oil uniformly flows onto the stainless steel orifice corrugated packing through the oil distributor, the superheated steam sent out by the superheated steam pipe is firstly in contact with the algae oil in the cylinder for deodorization, then the superheated steam moves upwards, enters the packing tower, and is fully in contact with the algae oil on the stainless steel orifice corrugated packing for deodorization.
In this embodiment, a first heat exchanger 32 is further provided, a steam inlet 33, a steam outlet 34, a heat conducting oil inlet 35 and a heat conducting oil outlet 36 are provided on the first heat exchanger 32, the steam inlet is directly connected with a boiler or a steam providing device, a steam pipeline 31 is connected above the steam outlet, an air inlet of a steam heating coil and an air inlet of a superheated steam pipe are connected with the steam pipeline, wherein the heat conducting oil inlet is used for delivering high-temperature heat conducting oil, and the heat conducting oil outlet is used for delivering the heat conducting oil heated by the first heat exchanger. And the heat conduction oil is utilized to heat the steam, so that the steam is ensured to be in an overheated state, and the deodorizing requirement is met.
Wherein, each circulation oil pipeline department is provided with the valve for the switch of control pipeline.
Claims (5)
1. A small algae oil deodorization device, which is characterized in that: the device comprises a cylinder body and a packing tower arranged at the top of the cylinder body, wherein the bottom of the packing tower is communicated with the top of the cylinder body through a flange, the bottom of the cylinder body is provided with an oil port, and the oil port is connected with a top sealing head of the packing tower through a circulating oil pipe; the circulating oil pipe is provided with an algae oil inlet and outlet port, and the algae oil inlet and outlet port is arranged close to the oil port; at least one group of steam heating coils are arranged in the cylinder, an air inlet of each steam heating coil is arranged on the side wall of the middle part of the cylinder, and a condensate water outlet of each steam heating coil is arranged at the bottom of the cylinder; the deodorizing device comprises a cylinder body, wherein the cylinder body is internally provided with a deodorizing mechanism, the deodorizing mechanism comprises a superheated steam pipe, an air outlet of the superheated steam pipe is arranged in the cylinder body, the air outlet of the superheated steam pipe is arranged towards the top of the cylinder body, and an air inlet of the superheated steam pipe is arranged at the bottom of the cylinder body; a protective cover is arranged outside the air outlet of the superheated steam pipe, the protective cover is of a horn-shaped structure with two open ends, the diameter of the opening at the top of the protective cover is larger than that of the opening at the bottom of the protective cover, the air outlet of the superheated steam pipe is inserted into the protective cover, the air outlet of the superheated steam pipe is close to the bottom of the protective cover, and the bottom of the protective cover is connected with the outer edge surface of the superheated steam pipe through a plurality of connecting rods; the top of the protective cover is also provided with an arc-shaped baffle, the opening of the arc-shaped baffle is downwards arranged, the width of the arc-shaped baffle is larger than the width of the opening at the top of the protective cover, the arc-shaped baffle is connected with the outer edge surface of the protective cover through a plurality of support plates, and a gap is arranged between the bottom surface of the arc-shaped baffle and the top surface of the protective cover; the circulating oil pipe is provided with a circulating oil pump, a heat exchanger and a flowmeter, the heat exchanger is arranged between the circulating oil pump and the flowmeter, and the algae oil inlet and outlet port is arranged between the circulating oil pump and the oil port; the top of the packing tower is a circulating oil inlet, the bottom of the packing tower is a circulating oil outlet, the flowmeter is arranged close to the circulating oil inlet of the packing tower, the circulating oil outlet of the packing tower is arranged at the top of the cylinder, and the circulating oil outlet is communicated with the top of the cylinder; the top of the packing tower is a circulating oil inlet, the bottom of the packing tower is a circulating oil outlet, and stainless steel pore plate corrugated packing is arranged in the packing tower; the device comprises a packing tower, a circulating oil inlet at the top of the packing tower, an algae oil collecting screen and an oil distributor, wherein the algae oil collecting screen is arranged at the top of the circulating oil inlet, the top of the oil distributor is arranged on the algae oil collecting screen, the bottom of the oil distributor is inserted into the packing tower, and a stainless steel pore plate corrugated packing is arranged under the oil distributor; the oil distributor is also provided with a vacuum pump, the vacuum pump is connected with a circulating oil inlet of the packing tower through a vacuum pipe, the circulating oil pipe passes through the vacuum pipe and is connected with the top of the oil distributor, and the end part of the vacuum pipe is covered on the algae oil trapping screen; the oil distributor comprises an oil outlet pipe, a horn-shaped shield and a first arc-shaped baffle, wherein the bottom opening of the horn-shaped shield is larger than the top opening, the top of the oil outlet pipe is connected with the circulating oil pipe, the bottom of the oil outlet pipe is inserted into the horn-shaped shield, the bottom of the oil outlet pipe is arranged in the middle of the horn-shaped shield, the inner edge surface of the top of the horn-shaped shield is fixedly connected with the outer edge surface of the oil outlet pipe, the opening of the first arc-shaped baffle is arranged upwards, the diameter of the first arc-shaped baffle is smaller than the diameter of the bottom of the horn-shaped shield, the first arc-shaped baffle is inserted into the bottom of the horn-shaped shield, the outer edge surface of the top of the first arc-shaped baffle is connected with the inner edge surface of the horn-shaped shield through at least two welding spots, and an air outlet gap is arranged between the outer edge surface of the first arc-shaped baffle and the inner edge surface of the horn-shaped shield; the small algae oil deodorization device is further provided with a first heat exchanger, a steam inlet, a steam outlet, a heat conducting oil inlet and a heat conducting oil outlet are arranged on the first heat exchanger, the steam inlet is directly connected with a boiler or steam supply equipment, a steam pipeline is connected to the steam outlet, and an air inlet of a steam heating coil and an air inlet of a superheated steam pipe are connected with the steam pipeline.
2. The small algae oil deodorizing apparatus according to claim 1, wherein: a sampling port is also arranged on the circulating oil pipe between the heat exchanger and the circulating oil pump; and the circulating oil pipe is also connected with a return pipe in parallel, one end of the return pipe is connected with the circulating oil pipe at the oil inlet end of the circulating oil pump, and the other end of the return pipe is connected with the circulating oil pipe at the oil outlet end of the circulating oil pump.
3. The small algae oil deodorizing apparatus according to claim 1, wherein: the algae oil trapping screen comprises a plurality of layers of annular screens, and grids between adjacent annular screens are arranged in a staggered manner; the top of the uppermost layer of annular screen is provided with two limiting plates, and the two limiting plates respectively penetrate through a plurality of layers of annular screen through bolts and are fixed at the top of the packing tower.
4. A process for deodorizing algae oil by using the small algae oil deodorizing apparatus according to claim 1, comprising the steps of: (1) the vacuum pump works to vacuumize the packing tower and the cylinder, and then the algae oil is sucked from the bottom of the cylinder under negative pressure; (2) high-temperature steam is introduced into the steam heating coil pipe, so that the high-temperature steam enters from the air inlet of the steam heating coil pipe and is sent out from the condensed water outlet, and the algae oil in the cylinder body is heated by the steam heating coil pipe, so that the algae oil in the cylinder body is heated to 145-160 ℃; (3) after the algae oil is heated to 145-160 ℃, high-temperature steam is closed, at the moment, a circulating oil pump is started again, the algae oil in the cylinder body is pumped into a circulating oil pipe from the bottom of the cylinder body by using the circulating oil pump, the algae oil is heated to 160-240 ℃ by a heat exchanger and then is conveyed to the top of a packing tower, and then the algae oil flows back into the cylinder body after passing through a stainless steel orifice plate corrugated packing from the top of the packing tower; (4) after the algae oil starts to circulate through the circulation oil pipe and the packing tower and returns to the barrel, the superheated steam pipe is led with the superheated steam to lead the superheated steam to go upwards, and the algae oil is directly contacted with the algae oil in the barrel and the packing tower for deodorization, and the process lasts for 1-5 hours; (5) after the algae oil circulates and contacts with the superheated steam for 1 hour, sampling and detecting the algae oil through a sampling port on a circulating oil pipe, and if the algae oil is unqualified in deodorization, continuing circulating deodorization; (6) in the step (5), if the deodorization detection of the algae oil is qualified, the heat exchanger stops working, the superheated steam is closed, then the algae oil is cooled by using cooling water in a cooling water channel steam heating coil, the algae oil is cooled to below 50 ℃, a circulating oil pump is closed, and the deodorized algae oil is extruded by nitrogen from an oil port at the bottom of the cylinder body, so that the algae oil is taken out from an algae oil inlet and outlet port, and the deodorization of the algae oil is completed.
5. The process according to claim 4, wherein: in the step (4), the circulating oil pump pumps the algae oil at the bottom of the cylinder to the top of the packing tower, the algae oil uniformly flows onto the stainless steel orifice corrugated packing through the oil distributor, the superheated steam sent out by the superheated steam pipe is firstly in contact with the algae oil in the cylinder for deodorization, then the superheated steam moves upwards, enters the packing tower, and is fully in contact with the algae oil on the stainless steel orifice corrugated packing for deodorization.
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| CN201810563065.5A CN108611185B (en) | 2018-06-04 | 2018-06-04 | Deodorization device and deodorization process for small algae oil |
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| CN201810563065.5A CN108611185B (en) | 2018-06-04 | 2018-06-04 | Deodorization device and deodorization process for small algae oil |
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| CN108611185B true CN108611185B (en) | 2023-12-01 |
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| CN108611185A (en) | 2018-10-02 |
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