CN105623850B - Equipment for removing aflatoxin in peanut oil by using activated carbon - Google Patents
Equipment for removing aflatoxin in peanut oil by using activated carbon Download PDFInfo
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- CN105623850B CN105623850B CN201610178777.6A CN201610178777A CN105623850B CN 105623850 B CN105623850 B CN 105623850B CN 201610178777 A CN201610178777 A CN 201610178777A CN 105623850 B CN105623850 B CN 105623850B
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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
- C11B3/10—Refining fats or fatty oils by adsorption
Abstract
The invention discloses equipment for removing aflatoxin in peanut oil by using activated carbon, which is characterized by comprising the following steps: the device comprises a reaction tank, a standing tank and a supporting frame; the reaction tank and the standing tank are respectively fixed on the supporting lugs of the supporting columns of the supporting frame; the reaction tank is provided with a charging hole, a stirrer and a discharge valve A, and a jacket of the reaction tank is provided with a hot water outlet and a steam inlet; the top of the reaction tank is provided with a driving device and a fixed seat, and the bottom of the reaction tank is provided with a discharge valve A and is connected with the upper end cover of the standing tank through a flange; the standing tank is provided with a hand hole opening, an oil outlet valve and a slag discharging valve; the hand hole is arranged at the top of the standing tank, the oil outlet valve is arranged at the lower section of the standing tank, and the slag discharge valve is arranged at the bottom of the standing tank; the supporting frame is provided with 3-4 supporting columns. The equipment is used for removing the aflatoxin in the peanut oil, the operation is simple, the original taste and nutrition of the finished peanut oil can be retained to the maximum extent, the aflatoxin content can be greatly reduced, and the existing national standard is met.
Description
Technical Field
The invention belongs to the technical field of grain and oil processing, and particularly relates to equipment for removing aflatoxin in peanut oil by using activated carbon.
Background
The edible peanut oil contains rich nutrient components and is popular with people. However, peanut oil is particularly susceptible to aflatoxin contamination during production and transportation; moreover, peanut oil is subject to contamination to a wide variety of degrees depending on the type of regional climate, especially in southern areas in warm and humid climates. Aflatoxins are a very toxic substance. The aflatoxin has a destructive effect on human and animal liver tissues, and can cause liver cancer and even death in severe cases. Aflatoxin B1 is most common in naturally contaminated foods, and is also the most toxic and carcinogenic. At present, the developed countries set up harsh aflatoxin limits for peanuts and their products, and the general trend will become more and more strict.
At present, the method for removing aflatoxin in peanut oil mainly comprises the following steps: biological enzymolysis, organic solvent extraction, ultraviolet irradiation, adsorbent method, etc. However, these prior art techniques have some disadvantages: the biological enzymolysis method has low treatment efficiency and requires large cost; organic solvent extraction such as methyl ether extraction developed in Japan, although the organic solvent methyl ether has a low boiling point and is easily removed, the organic solvent remains in the peanut oil; the effect of the ultraviolet irradiation method is not remarkable, and the like.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the equipment for removing the aflatoxin in the peanut oil by using the activated carbon, and the finished product of the peanut oil after the aflatoxin is removed by using the equipment not only can retain the original taste and nutrition to the maximum extent, but also can greatly reduce the content of the aflatoxin and meet the existing national standard.
The technical scheme of the invention is as follows:
the equipment for removing aflatoxin in peanut oil by using activated carbon is characterized in that: the device comprises a reaction tank, a standing tank and a supporting frame; the reaction tank and the standing tank are respectively fixed on a supporting lug of a supporting column of the supporting frame, and the bottom of the reaction tank is connected with an upper end cover of the standing tank through a flange;
the reaction tank is provided with a charging hole, a stirrer and a discharge valve A, and a jacket of the reaction tank is provided with a hot water outlet and a steam inlet; the top of the reaction tank is provided with a driving device and a fixed seat;
the reaction tank is provided with a charging hole, a stirrer and a discharge valve A, and a jacket of the reaction tank is provided with a hot water outlet and a steam inlet; the top of the reaction tank is provided with a driving device and a fixed seat, and the bottom of the reaction tank is provided with a discharge valve A and is connected with the upper end cover of the standing tank through a flange;
the standing tank is provided with a hand hole opening, an oil outlet valve and a slag discharging valve; the hand hole is arranged at the top of the standing tank, the oil outlet valve is arranged at the lower section of the standing tank, and the slag discharge valve is arranged at the bottom of the standing tank;
the supporting rack is provided with 3-4 supporting columns, and the adjacent supporting columns of the supporting rack provided with 4 supporting columns are welded by reinforcing cross rods.
Preferably, a filter screen is arranged at a product oil outlet on the oil outlet valve; the filter screen is a stainless steel filter membrane and is fixed in the oil outlet pipe mouth in a threaded or sleeved mode.
Preferably, a bypass discharge pipe is further arranged between the reaction tank and the standing tank; the upper section of the bypass discharging pipe is provided with a discharge valve B and is connected with the lower section of the reaction tank, and the lower end of the bypass discharging pipe is connected with the upper end of the standing tank.
Preferably, the standing tanks (1) are more than 1, and when more than 2 standing tanks (1) are arranged, the standing tanks are connected in parallel and are respectively provided with valves.
Preferably, the discharge valve A is a top-bottom valve.
The working principle is as follows: adding the peanut oil with the activated carbon particles and aflatoxin exceeding standards into a reaction tank from a feed inlet, opening a driving device, opening a steam inlet, introducing steam for heating, opening a hot water outlet, fully stirring by using a stirrer, opening a discharge valve B after standing, discharging the peanut oil into the standing tank, closing the discharge valve B, enabling the activated carbon particles in the reaction tank to be reused, adding the activated carbon particles and the peanut oil with the aflatoxin exceeding standards again, repeating the steps until the activated carbon particles are completely adsorbed, opening a discharge valve A, discharging the mixture into the standing tank, opening an oil outlet valve after standing, filtering, collecting finished oil, finally opening a residue discharge valve, and discharging the activated carbon residues out of the standing tank for recycling.
The invention has the beneficial effects that:
1. the equipment for removing aflatoxin in peanut oil by using the activated carbon is provided with the bypass discharge pipe, and activated carbon particles in the reaction tank can be used for multiple times and can be completely adsorbed, so that the consumption of the activated carbon in the next batch of treatment can be reduced, the discharged activated carbon slag is reduced, the equipment is easy to clean, can be recycled and reused, and the production cost is reduced;
2. the discharge valve at the bottom of the reaction tank of the equipment is set as a top-bottom valve, so that activated carbon particles are effectively prevented from being deposited in a pipe orifice, the activated carbon can be effectively utilized, and the adsorption effect is better;
3. the equipment for removing aflatoxin in peanut oil by using the activated carbon has the advantages of reasonable structure, simple manufacture, convenient operation, low cost, good effect and good economic benefit;
4. the equipment of the invention adopts the active carbon to remove the aflatoxin in the peanut oil, belongs to a physical method to remove the aflatoxin, can furthest reserve the original taste and nutrition of the peanut oil, and has good social benefit.
Drawings
FIG. 1 is a schematic structural diagram of the device for removing aflatoxin in peanut oil.
FIG. 2 is a structural schematic diagram of more than 2 static tanks of the device for removing aflatoxin in peanut oil.
The labels in the figure are: 1-standing tank, 2-support frame, 3-reaction tank, 4-bypass discharge pipe, 5-discharge valve B, 6-jacket, 7-stirrer, 8-charging hole, 9-driving device, 10-fixing seat, 11-fixing lug A, 12-hot water outlet, 13-steam inlet, 14-discharge valve A, 15-hand hole opening, 16-fixing lug B, 17-oil outlet valve, 18-filter screen and 19-slag discharge valve.
Detailed Description
The invention is further described with reference to specific examples, without limiting the scope of protection and the scope of application of the invention.
Example 1:
the equipment for removing aflatoxin in peanut oil by using activated carbon is characterized in that: the device comprises a reaction tank 3, a standing tank 1 and a supporting frame 2; the reaction tank 3 and the standing tank 1 are respectively fixed on a supporting lug of a supporting column of the supporting frame 2, and the bottom of the reaction tank 3 is connected with an upper end cover of the standing tank 1 through a flange;
the reaction tank 3 is provided with a charging hole 8, a stirrer 7 and a discharge valve A14, and a jacket 6 of the reaction tank 3 is provided with a hot water outlet 12 and a steam inlet 13; the top of the reaction tank 3 is provided with a driving device 9 and a fixed seat 10;
the standing tank 1 is provided with a hand hole opening 15, an oil outlet valve 17 and a slag discharging valve 19; the hand hole opening 15 is arranged at the top of the standing tank 1, the oil outlet valve 17 is arranged at the lower section of the standing tank 1, and the slag discharge valve 19 is arranged at the bottom of the standing tank 1;
4 supporting columns are arranged on the supporting frame 2, and the middle lower sections of the adjacent 2 supporting columns are welded by reinforcing cross bars.
The discharge valve A14 is a top-bottom valve.
When the equipment works, the discharge valve A14 is closed, KOH is used as an activating agent to activate the charcoal made from longan branches, and then the charcoal is crushed into powder with the specific surface area of 2000m2Adding activated carbon particles per gram and peanut oil with the aflatoxin content of 55.74 mug/kg into a reaction tank 3 from a feed inlet 8 according to the mass ratio of 0.1:100, opening a driving device 9, opening a steam inlet 13, introducing steam for heating, opening a hot water outlet 12, fully stirring for 1 hour by using a stirrer 7 at the stirring speed of 20r/min and the stirring temperature of 40 ℃, closing an oil outlet valve 17 and a slag discharge valve 19 of the standing tank 1 after the reaction is finished, then opening a discharge valve A14, discharging the mixture into the standing tank 1, opening the oil outlet valve 17 after the mixture is allowed to stand for 3 hours, filtering by a filter screen 18, collecting finished oil, and finally opening the slag discharge valve 19 to discharge activated carbon slag out of the standing tank 1.
Example 2:
the equipment for removing aflatoxin in peanut oil by using activated carbon is characterized in that: the device comprises a reaction tank 3, a standing tank 1 and a supporting frame 2; the reaction tank 3 and the standing tank 1 are respectively fixed on the supporting lugs of the supporting columns of the supporting frame 2;
the reaction tank 3 is provided with a charging hole 8, a stirrer 7 and a discharge valve A14, and a jacket 6 of the reaction tank 3 is provided with a hot water outlet 12 and a steam inlet 13; the top of the reaction tank 3 is provided with a driving device 9 and a fixed seat 10, and the bottom of the reaction tank 3 is provided with a discharge valve A14 and is connected with the upper end cover of the standing tank 1 through a flange;
the standing tank 1 is provided with a hand hole opening 15, an oil outlet valve 17 and a slag discharging valve 19; the hand hole opening 15 is arranged at the top of the standing tank 1, the oil outlet valve 17 is arranged at the lower section of the standing tank 1, and the slag discharge valve 19 is arranged at the bottom of the standing tank 1;
4 supporting columns are arranged on the supporting frame 2, and the adjacent supporting columns are welded by reinforcing cross rods.
A filter screen 18 is arranged at a product oil outlet on the oil outlet valve 17; the filter screen 18 is a stainless steel filter membrane and is fixed in the oil outlet pipe mouth in a thread mode.
The discharge valve A14 is a top-bottom valve.
When the equipment works, the discharge valve A14 is closed, KOH is used as an activating agent, charcoal made from litchi branches is activated, and then the activated charcoal is crushed into the specific surface area of 4000m2Adding the activated carbon particles and peanut oil with the aflatoxin content of 55.74 mug/kg into a reaction tank 3 from a feed inlet 8 according to the mass ratio of 10:100, opening a driving device 9, opening a steam inlet 13, introducing steam for heating, opening a hot water outlet 12, fully stirring for 4 hours by a stirrer 7 at the stirring speed of 80r/min, maintaining the stirring temperature at 70 ℃, closing an oil outlet valve 17 and a residue discharge valve 19, then opening a discharge valve A14, discharging the mixture into a standing tank 1, standing for 4 hours, opening the oil outlet valve 17, filtering by a filter screen 18, collecting finished oil, and finally opening the residue discharge valve 19, and discharging activated carbon residues out of the standing tank 1.
Example 3:
the equipment for removing aflatoxin in peanut oil by using activated carbon is characterized in that: the device comprises a reaction tank 3, a standing tank 1 and a supporting frame 2; the reaction tank 3 and the standing tank 1 are respectively fixed on the supporting lugs of the supporting columns of the supporting frame 2;
the reaction tank 3 is provided with a charging hole 8, a stirrer 7 and a discharge valve A14, and a jacket 6 of the reaction tank 3 is provided with a hot water outlet 12 and a steam inlet 13; the top of the reaction tank 3 is provided with a driving device 9 and a fixed seat 10, and the bottom of the reaction tank 3 is provided with a discharge valve A14 and is connected with the upper end cover of the standing tank 1 through a flange;
the standing tank 1 is provided with a hand hole opening 15, an oil outlet valve 17 and a slag discharging valve 19; the hand hole opening 15 is arranged at the top of the standing tank 1, the oil outlet valve 17 is arranged at the lower section of the standing tank 1, and the slag discharge valve 19 is arranged at the bottom of the standing tank 1;
the supporting frame 2 is provided with 3 supporting columns.
A filter screen 18 is arranged at a product oil outlet on the oil outlet valve 17; the filter screen 18 is a stainless steel filter screen and is fixed in the oil outlet pipe mouth in a sleeved mode.
A bypass discharge pipe 4 is also arranged between the reaction tank 3 and the standing tank 1; the upper section of bypass discharging pipe 4 is equipped with relief valve B5 and is connected with the hypomere of retort 3, and the lower extreme of bypass discharging pipe 4 is connected with the upper end of jar 1 that stews.
The standing tank 1 is provided with 2 tanks which are connected in parallel and are respectively provided with a valve.
The discharge valve A14 is a top-bottom valve.
When the equipment works, the discharge valve A14 and the discharge valve B5 are closed, NaOH is firstly adopted as an activating agent, the charcoal prepared by mixing longan and litchi branches in a ratio of 1:6 is activated, and then the activated charcoal is crushed into particles with the specific surface area of 2200m2Adding activated carbon particles per gram into a reaction tank 3 from a feed inlet 8 according to a mass ratio of 1.5:100, opening a driving device 9, opening a steam inlet 13, introducing steam for heating, opening a hot water outlet 12, fully stirring for 3.5 hours by using a stirrer 7 at a stirring speed of 60r/min at a stirring temperature of 20 ℃, standing for 1 hour, closing an oil outlet valve 17 and a residue discharge valve 19 of a1 st standing tank 1, then opening a discharge valve B5, discharging peanut oil into the 1 st standing tank 1, closing a discharge valve B5, and leaving the activated carbon particles in the reaction tank 3 for second batch of aflatoxin removal treatment. When the activated carbon particles and the peanut oil with the aflatoxin exceeding the standard are added again, the adding amount of the activated carbon particles is reduced by 1/2 compared with that of the first time, the steps are repeated, after the activated carbon particles are completely adsorbed, the oil outlet valve 17 and the slag discharge valve 19 of the 1 st standing tank 1 are closed, the discharge valve A14 is opened, the mixture is discharged into the 2 nd standing tank 1, after standing for 3 hours, the oil outlet valves 17 of the two standing tanks 1 are opened, the finished oil is collected by filtering through the filter screen 18, and finally the slag discharge valves 19 of the two standing tanks 1 are opened to discharge the activated carbon slag.
The finished oil of the embodiments 1-3 of the invention has obviously reduced aflatoxin content, and the main nutrient substances are as follows: the contents of fat and energy are not changed, the contents of trace elements are slightly reduced, and all indexes meet the existing national standard.
The specific detection data are as follows:
Claims (2)
1. the equipment for removing aflatoxin in peanut oil by using activated carbon is characterized in that: the device comprises a reaction tank (3), a standing tank (1) and a supporting frame (2); the reaction tank (3) and the standing tank (1) are respectively fixed on a supporting lug of a supporting column of the supporting frame (2), and the bottom of the reaction tank (3) is connected with an upper end cover of the standing tank (1) through a flange;
the reaction tank (3) is provided with a feed inlet (8), a stirrer (7) and a discharge valve A (14), and a jacket (6) of the reaction tank (3) is provided with a hot water outlet (12) and a steam inlet (13); the top of the reaction tank (3) is provided with a driving device (9) and a fixed seat (10);
the standing tank (1) is provided with a hand hole opening (15), an oil outlet valve (17) and a slag discharging valve (19); the hand hole opening (15) is arranged at the top of the standing tank (1), the oil outlet valve (17) is arranged at the lower section of the standing tank (1), and the slag discharge valve (19) is arranged at the bottom of the standing tank (1);
the supporting frame (2) is provided with 3-4 supporting columns, and adjacent supporting columns of the supporting frame (2) provided with 4 supporting columns are welded by reinforcing cross rods;
a filter screen (18) is arranged at a product oil outlet on the oil outlet valve (17);
the filter screen (18) is a stainless steel filter membrane and is fixed in the oil outlet pipe port in a threaded or sleeved mode;
a bypass discharge pipe (4) is also arranged between the reaction tank (3) and the standing tank (1); the upper section of the bypass discharging pipe (4) is provided with a discharging valve B (5) and is connected with the lower section of the reaction tank (3), and the lower end of the bypass discharging pipe (4) is connected with the upper end of the standing tank (1);
the discharge valve A (14) adopts a top-bottom valve;
the standing tank (1) is more than 1, and when more than 2 standing tanks (1) are arranged, the standing tanks are connected in parallel and are respectively provided with valves.
2. The application of the equipment for removing aflatoxin in peanut oil by using activated carbon is characterized in that: the device comprises a reaction tank (3), a standing tank (1) and a supporting frame (2); the reaction tank (3) and the standing tank (1) are respectively fixed on the supporting lugs of the supporting columns of the supporting frame (2);
the reaction tank (3) is provided with a feed inlet (8), a stirrer (7) and a discharge valve A (14), and a jacket (6) of the reaction tank (3) is provided with a hot water outlet (12) and a steam inlet (13); the top of the reaction tank (3) is provided with a driving device (9) and a fixed seat (10), and the bottom of the reaction tank (3) is provided with a discharge valve A (14) and is connected with the upper end cover of the standing tank (1) through a flange;
the standing tank 1 is provided with a hand hole opening (15), an oil outlet valve (17) and a slag discharging valve (19); the hand hole opening (15) is arranged at the top of the standing tank (1), the oil outlet valve (17) is arranged at the lower section of the standing tank (1), and the slag discharge valve (19) is arranged at the bottom of the standing tank (1);
the supporting frame (2) is provided with 3 supporting columns;
a filter screen (18) is arranged at a product oil outlet on the oil outlet valve (17); the filter screen (18) is a stainless steel filter membrane and is fixed in the oil outlet pipe mouth in a sleeving manner;
a bypass discharge pipe (4) is also arranged between the reaction tank (3) and the standing tank (1); the upper section of the bypass discharging pipe (4) is provided with a discharging valve B (5) and is connected with the lower section of the reaction tank (3), and the lower end of the bypass discharging pipe (4) is connected with the upper end of the standing tank (1);
2 standing tanks (1) are arranged and connected in parallel, and are respectively provided with valves;
the discharge valve A (14) adopts a top-bottom valve;
when the equipment works, the discharge valve A (14) and the discharge valve B (5) are closed, NaOH is firstly adopted as an activating agent, the branches of longan and litchi are activated by charcoal prepared by mixing 1:6, and then the activated branches are crushed into particles with the specific surface area of 2200m2Activated carbon particles per gram, then the activated carbon particles and the aflatoxin content are 55.74 muAdding g/kg peanut oil into a reaction tank (3) from a feed inlet (8) according to a mass ratio of 1.5:100, opening a driving device (9), opening a steam inlet (13), introducing steam for heating, opening a hot water outlet (12), fully stirring for 3.5 hours by using a stirrer (7), wherein the stirring speed is 60r/min, the stirring temperature is maintained at 20 ℃, standing for 1 hour, closing an oil outlet valve (17) and a slag discharge valve (19) of the 1 st standing tank (1), then opening a discharge valve B (5), discharging the peanut oil into the 1 st standing tank (1), closing the discharge valve B (5), and leaving activated carbon particles in the reaction tank (3) for second batch of aflatoxin removal treatment; when the activated carbon particles and the peanut oil with the aflatoxin exceeding the standard are added again, the adding amount of the activated carbon particles is reduced by 1/2 compared with that of the first time, the steps are repeated, after the activated carbon particles are completely adsorbed, the oil outlet valve (17) and the residue discharge valve (19) of the 1 st standing tank (1) are closed, the material discharge valve A (14) is opened, the mixture is discharged into the 2 nd standing tank (1), after standing for 3 hours, the oil outlet valves (17) of the two standing tanks (1) are opened, filtering is performed through the filter screen (18), the finished oil is collected, finally, the residue discharge valve (19) of the two standing tanks (1) is opened, and the activated carbon residues are discharged.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610178777.6A CN105623850B (en) | 2016-03-28 | 2016-03-28 | Equipment for removing aflatoxin in peanut oil by using activated carbon |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610178777.6A CN105623850B (en) | 2016-03-28 | 2016-03-28 | Equipment for removing aflatoxin in peanut oil by using activated carbon |
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| CN105623850A CN105623850A (en) | 2016-06-01 |
| CN105623850B true CN105623850B (en) | 2020-04-07 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107469790A (en) * | 2017-09-07 | 2017-12-15 | 广州尊卓环保科技有限公司 | Remove filter medium, filter core and the preparation method of aflatoxin in edible oil |
| CN109370776A (en) * | 2018-10-29 | 2019-02-22 | 山东省农业科学院农业质量标准与检测技术研究所 | The eliminating equipment and method of aflatoxin in a kind of peanut oil |
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| CN103451015A (en) * | 2012-05-26 | 2013-12-18 | 赖琼玮 | Method and equipment for removing benzopyrene in edible oil |
| CN103589510A (en) * | 2013-11-19 | 2014-02-19 | 福建华仁油脂有限公司 | Nigre removal process and equipment for vegetable oil and vegetable oil production process |
| CN104164299A (en) * | 2013-05-15 | 2014-11-26 | 无锡市新耀生物工程技术有限公司 | Equipment for removing toxins from edible oil raw materials and oil byproduct (raw material meal) |
| CN204918535U (en) * | 2015-08-19 | 2015-12-30 | 佘季秋 | Utilize oil tank of sea foam characteristic purification vegetable oil |
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2016
- 2016-03-28 CN CN201610178777.6A patent/CN105623850B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103451015A (en) * | 2012-05-26 | 2013-12-18 | 赖琼玮 | Method and equipment for removing benzopyrene in edible oil |
| CN104164299A (en) * | 2013-05-15 | 2014-11-26 | 无锡市新耀生物工程技术有限公司 | Equipment for removing toxins from edible oil raw materials and oil byproduct (raw material meal) |
| CN103589510A (en) * | 2013-11-19 | 2014-02-19 | 福建华仁油脂有限公司 | Nigre removal process and equipment for vegetable oil and vegetable oil production process |
| CN204918535U (en) * | 2015-08-19 | 2015-12-30 | 佘季秋 | Utilize oil tank of sea foam characteristic purification vegetable oil |
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