CN211170630U - Optimize device of soybean oil refining production - Google Patents
Optimize device of soybean oil refining production Download PDFInfo
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- CN211170630U CN211170630U CN201921930693.9U CN201921930693U CN211170630U CN 211170630 U CN211170630 U CN 211170630U CN 201921930693 U CN201921930693 U CN 201921930693U CN 211170630 U CN211170630 U CN 211170630U
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Abstract
The utility model relates to a grain and oil industry refining process optimization's technical field especially reduces the neutral oil and contains the soap, promotes the effect in the aspect of the refining rate obvious, particularly, is a device of optimizing soybean oil refining production. The system comprises a crude oil storage tank, a first hydration delay tank and a second hydration delay tank, wherein the crude oil storage tank is connected with a heat exchanger, the heat exchanger is connected with an acid mixer, the acid mixer is connected with an acid delay tank, the acid delay tank is connected with an alkali mixer, a material outlet of the alkali mixer is connected with an alkali delay tank, an alkali water inlet of the alkali mixer is connected with an alkali reaction tank, and a water inlet of the alkali reaction tank is connected with a water outlet of an oil distribution tank; the alkali time delay tank is connected with the soap removing centrifugal machine, a soap outlet of the soap removing centrifugal machine is connected with the soap tank, the soap tank is connected with the storage tank, an oil outlet of the soap removing centrifugal machine is connected with the neutral oil mixer, and a material outlet of the neutral oil mixer is connected with an oil inlet of the first hydration time delay tank. In a word, the device has simple structure and convenient use.
Description
Technical Field
The utility model relates to a grain and oil industry refining process optimization's technical field especially reduces the neutral oil and contains the soap, promotes the effect in the aspect of the refining rate obvious, particularly, is a device of optimizing soybean oil refining production.
Background
With the improvement of the domestic economic level, the demand of people on edible oil is increasing day by day, soybean oil is one of main edible oil, has a large market in China all the time, and the application range of the refined soybean oil is wide. At present, refining processes of various domestic large grain and oil companies are mainly divided into physical refining, chemical refining and mixed refining, no matter which process is adopted, a centrifugal machine is needed to carry out solid-liquid separation, and meanwhile, the centrifugal machine is also one of important factors influencing refining production lines. The principle of the centrifugal machine is that impurities in oil are separated out through centrifugal force, partial neutral oil loss can be caused in the separation process, refining cost is improved, and meanwhile, the neutral oil is high in soap content due to poor solid-liquid separation effect, and serious influence is caused on the quality of subsequent production and finished oil.
At present, the domestic refining production line enters a washing centrifuge to remove residual impurities after passing through a deacidification working section, but when crude oil fluctuates, the quality of the whole system is fluctuated, the solid-liquid phase distribution of the centrifuge is unbalanced, the phenomenon of oil leakage is easily caused, part of oil is slightly lost, production is delayed, the index of containing soap is difficult to control, the soap content of the oil is high, the continuous operation of a subsequent decoloration working section filter is influenced, and the soap content of the finished oil is increased, so that the quality of the finished oil is influenced. The waste water separated after water washing is called washing water, and partial grease can be remained in the washing water and generally overflows to a sewage workshop to be wasted. Therefore, there is a need for a technology that can effectively reduce the instability phenomenon during the separation of the centrifuge and improve the refining rate.
SUMMERY OF THE UTILITY MODEL
The centrifuge solid phase liquid phase distribution to prior art is unbalanced, causes the not enough of phenomenon emergence of oil leakage very easily, the utility model provides an optimize the device of soybean oil refining production, the device adopts twice water washing to remove the soap, and effectual reduction neutral oil contains the soap, solves the oil leakage phenomenon that takes place because of the unstability of neutral oil containing the soap, stabilizes finished product oil product quality, guarantees the continuity and the stability of production to accomplish to retrieve completely the recycle to the washing water, retrieve the residual oil in the washing water, feasible refining rate promotes and manufacturing cost's reduction, in order to solve above-mentioned technical problem.
In order to achieve the above purpose, the specific technical solution of the present invention is:
a device for optimizing refining production of soybean oil comprises a crude oil storage tank, a first hydration delay tank and a second hydration delay tank, wherein the crude oil storage tank is connected with a heat exchanger, the heat exchanger is connected with an acid mixer, the acid mixer is connected with the acid delay tank, the acid delay tank is connected with an alkali mixer, a material outlet of the alkali mixer is connected with an alkali delay tank, an alkali water inlet of the alkali mixer is connected with an alkali reaction tank, and a water inlet of the alkali reaction tank is connected with a water outlet of an oil distribution tank; the alkali delay tank is connected with a soap removing centrifuge, a saponin outlet of the soap removing centrifuge is connected with a saponin tank, the saponin tank is connected with a storage tank, an oil outlet of the soap removing centrifuge is connected with a neutral oil mixer, and a material outlet of the neutral oil mixer is connected with an oil inlet of the first hydration delay tank; the material outlet of the first hydration time-delay tank is connected with a first water washing centrifugal machine, the water outlet of the first water washing centrifugal machine is connected with a gleditsia sinensis lam, the oil outlet of the first water washing centrifugal machine is connected with the oil inlet of a second hydration time-delay tank, the water inlet of the second hydration time-delay tank is connected with a soft water tank, the material outlet of the second hydration time-delay tank is connected with a second water washing centrifugal machine, the oil outlet of the second water washing centrifugal machine is connected to the next procedure, and the washing water outlet of the second water washing centrifugal machine is connected with an oil separating tank.
Furthermore, the heat exchanger is a plate heat exchanger, so that the heat exchange effect is good, the structure is simple, and the use is convenient.
Furthermore, a material outlet of the alkali delay tank is connected with a heat exchanger, the heat exchanger is connected with a material inlet of the soap-removing centrifuge, a heat exchange step is added, the oil after the neutralization reaction is heated to 80-85 ℃, the separation is convenient, and the separation effect is improved.
Furthermore, a washing water inlet of the neutral oil mixer is connected with a water outlet of the oil separating tank, washing water in the oil separating tank is recycled, production cost is saved, residual oil in the washing water can be recycled, and refining rate is improved.
The device can be used for carrying out the following method, namely a method for optimizing the refining production of soybean oil, and comprises the following detailed steps:
(1) performing heat exchange on the crude oil in the crude oil storage tank, heating the crude oil to 70-75 ℃, adding phosphoric acid with the concentration of 75-85% in an amount of 0.08-0.15 per mill, mixing, then entering an acid delay tank, and performing delay stirring for 40-60 min.
(2) And (3) carrying out alkali mixing on the acid-treated crude oil, adding liquid alkali with the concentration of 15%, mixing, then entering an alkali delay tank, and carrying out delay stirring for 30-40 min.
(3) And (3) neutralizing the treated crude oil with alkali, heating the crude oil subjected to neutralization reaction to 80-85 ℃ through heat exchange, and separating by using a soap-removing centrifuge.
(4) The separated saponin enters a saponin tank, and the saponin tank enters a storage tank for storage in a tank area.
(5) And (4) feeding the neutral oil obtained by the soap removal and centrifugal separation in the step (3) into a neutral oil mixer, mixing the neutral oil with the washing water in the oil separating tank, wherein the addition amount of the recycled washing water is 2.0-2.8% of the weight of the neutral oil, and then feeding the recycled washing water into a first hydration delay tank, wherein the reaction time is 20-30 min.
(6) Then the neutral oil enters a first water washing centrifuge.
(7) And the washing water separated by the first water washing centrifugal machine enters the saponin tank and is not recycled.
(8) Adding softened water with the temperature of 80-90 ℃ into the neutral oil subjected to primary water washing by the first water washing centrifugal machine, wherein the adding proportion is 2.0-2.8% of the weight of the neutral oil, and then, feeding the neutral oil into the second hydration time delay tank, wherein the reaction time is 15-20 minutes.
(9) And then the neutral oil enters a second water washing centrifugal machine for second water washing separation.
(10) The separated washing water enters a washing water oil tank, and the obtained qualified oil product enters the next procedure.
Furthermore, the utility model discloses a method for optimizing refined production of soybean oil, the detailed step is as follows:
(1) introducing the crude oil in the crude oil storage tank into a heat exchanger, heating the crude oil to 70-75 ℃, adding phosphoric acid with the concentration of 75% in an amount of 0.1 per mill, mixing in an acid mixer, then entering an acid delay tank, and performing delay stirring for 40-60 min.
(2) And the crude oil after acid treatment enters an alkali mixer from the acid delay tank, meanwhile, liquid alkali with the concentration of 15 percent is added into the alkali mixer, and after the mixture of the alkali mixer, the crude oil enters an alkali delay tank and enters the time delay stirring for 30-40 min.
(3) And (3) neutralizing the treated crude oil with alkali, heating the crude oil subjected to neutralization reaction to 80-85 ℃ through a heat exchanger, and separating the crude oil in a soap-removing centrifuge.
(4) The separated saponin enters a saponin tank, and the saponin tank enters a storage tank for storage in a tank area.
(5) And (4) feeding the neutral oil separated by the soaping centrifuge in the step (3) into a neutral oil mixer, mixing the neutral oil with the washing water in the oil separating tank, adding the recycled washing water in an amount of 2.3% of the weight of the neutral oil, and feeding the recycled washing water into a first hydration time delay tank for reaction for 20-30 min.
(6) Then the neutral oil enters a first water washing centrifuge.
(7) And the washing water separated by the first water washing centrifugal machine enters the saponin tank and is not recycled.
(8) Adding softened water with the temperature of 80-90 ℃ into the neutral oil subjected to primary water washing by the first water washing centrifugal machine, wherein the adding proportion is 2.5% of the weight of the neutral oil, and then, feeding the neutral oil into a second hydration time delay tank, wherein the reaction time is 15-20 minutes.
(9) And then the neutral oil enters a second water washing centrifugal machine for second water washing separation.
(10) The separated washing water enters a washing water oil tank 6, and the obtained qualified oil product enters the next procedure.
Further, the utility model discloses an, in step (2), the washing water that adopts the branch oil tank is retrieved for use, acts as joining in marriage the buck, pours into the alkali retort into liquid caustic soda concentration into 15%, then gets into the alkali blender and mixes, has practiced thrift manufacturing cost, can retrieve the residual oil in the washing water once more simultaneously, improves the refining rate. The washing water is recycled, the production water is saved, and the refining rate is improved. The washing water passes through centrifuge's separation and can remain a certain amount of neutral oil more or less, generally can follow the water and arrange to sewage treatment outward, through the continuous research discovery, we regard the washing water as first washing water, can satisfy centrifuge separation's requirement completely to the residual oil in the washing water can be retrieved the washing retort once more, reduces the loss of neutral oil, improves the refining rate. By recycling the washing water as the process water, the impact of the washing water on sewage is solved, and the water for production is saved.
The method of the utility model effectively reduces the soap content and the phosphorus content of the washing oil through twice washing, increases the reaction time, and leads the two centrifuges at the back to exert larger effect, thereby reducing the discharge amount of soapstock and improving the yield of the neutralizing oil; the use of excessive alkali is reduced, and the refining consumption of the neutralization oil is reduced; the production cost is saved by recycling a part of the washing water, and meanwhile, the residual oil in the washing water can be recycled, so that the refining rate is improved.
And the neutral oil is separated by twice water washing, so that the soap content of the neutral oil is reduced, and the refining rate is slightly improved. The two centrifuges are used for repeated separation, the reaction time of the water washing water and the oil is prolonged to 40min from the original 20min, so that the water washing water and the oil react more fully, the two centrifuges belong to twice repeated water washing separation, trace residual soap and hydrated phospholipid remained in the first reaction are removed more thoroughly, the residual soap value is greatly reduced, and the oil product has stronger impact resistance when in fluctuation. The water soap-eluting ability is enhanced, the liquid alkali addition can be properly reduced, and the loss of neutral oil during deacidification is reduced.
The utility model has the advantages that,
by adopting the whole set of device for optimizing the refining production of the soybean oil, the soap content and the phosphorus content of the washing oil are effectively reduced through twice water washing, the reaction time is increased, and the two subsequent centrifuges can play a greater effect, so that the discharge amount of soapstock is reduced, and the yield of the neutralized oil is improved; the use of excessive alkali is reduced, and the refining consumption of the neutralization oil is reduced; through retrieval and utilization washing water partly practiced thrift manufacturing cost, can retrieve the residual oil in the washing water once more simultaneously, improve the refining rate, in a word, this device simple structure, convenient to use.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of embodiment 2 of the present invention;
fig. 2 is another schematic structural view of embodiment 2 of the present invention;
1-crude oil storage tank, 2-heat exchanger, 3-acid mixer, 31-acid delay tank, 4-alkali mixer, 41-alkali delay tank, 42-alkali reaction tank, alkali water inlet of 43-alkali mixer, water inlet of 44-alkali reaction tank, material outlet of 45-alkali mixer, material outlet of 46-alkali delay tank, 5-oil separating tank, 51-water outlet, 6-soap removing centrifuge, 61-soap outlet, 62-soap tank, 63-storage tank, 64-oil outlet of soap removing centrifuge, 65-neutral oil mixer, 66-material outlet of neutral oil mixer, washing water inlet of 67-neutral oil mixer, material inlet of 68-soap removing centrifuge, 7-first hydration delay tank, 71-oil inlet of first hydration delay tank, 72-a material outlet of the first hydration time-delay tank, 73-a first water-washing centrifuge, 74-a water outlet of the first water-washing centrifuge, 75-an oil outlet of the first water-washing centrifuge, 8-a second hydration time-delay tank, 81-a water inlet of the second hydration time-delay tank, 82-a soft water tank, 83-a material outlet of the second hydration time-delay tank, 84-the second water-washing centrifuge, 85-an oil outlet of the second water-washing centrifuge, 86-a washing water outlet of the second water-washing centrifuge, 87-an oil inlet of the second hydration time-delay tank.
Detailed Description
In order to make the technical solutions in the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
Example 1
Example 1
(1) Performing heat exchange on the crude oil in the crude oil storage tank, heating the crude oil to 70-75 ℃, adding phosphoric acid with the concentration of 75% in an amount of 0.1 per mill, mixing, then feeding into an acid delay tank, and performing delay stirring for 40-60 min.
(2) And (3) carrying out alkali mixing on the acid-treated crude oil, adding liquid alkali with the concentration of 15%, mixing, then entering an alkali delay tank, and carrying out delay stirring for 30-40 min.
(3) And (3) neutralizing the treated crude oil with alkali, heating the crude oil subjected to neutralization reaction to 80-85 ℃ through heat exchange, and separating by using a soap-removing centrifuge.
(4) The separated saponin enters a saponin tank, and the saponin tank enters a storage tank for storage in a tank area.
(5) And (4) feeding the neutral oil obtained by the soap removing and centrifugal separation in the step (3) into a neutral oil mixer, mixing with the washing water in the oil separating tank, adding the recycled washing water in an amount of 2.0% of the weight of the neutral oil, and feeding the recycled washing water into a first hydration time delay tank for reaction for 20-30 min.
(6) Then the neutral oil enters a first water washing centrifuge.
(7) And the washing water separated by the first water washing centrifugal machine enters the saponin tank and is not recycled.
(8) Adding softened water with the temperature of 80-90 ℃ into the neutral oil subjected to primary water washing by the first water washing centrifugal machine, wherein the adding proportion is 2.5% of the weight of the neutral oil, and then, feeding the neutral oil into a second hydration time delay tank, wherein the reaction time is 15-20 minutes.
(9) And then the neutral oil enters a second water washing centrifugal machine for second water washing separation.
(10) The separated washing water enters a washing water oil tank, and the obtained qualified oil product enters the next procedure.
Example 2
With reference to fig. 1, it can be seen that the device for optimizing soybean oil refining production comprises a crude oil storage tank 1, a first hydration time delay tank 7 and a second hydration time delay tank 8, wherein the crude oil storage tank 1 is connected with a heat exchanger 2, and the heat exchanger is a plate heat exchanger, so that the device has the advantages of good heat exchange effect, simple structure and convenience in use.
The heat exchanger 2 is connected with an acid mixer 3, the acid mixer 3 is connected with an acid delay tank 31, the acid delay tank 31 is connected with an alkali mixer 4, a material outlet 45 of the alkali mixer is connected with an alkali delay tank 41, an alkali water inlet 43 of the alkali mixer is connected with an alkali reaction tank 42, and a water inlet 44 of the alkali reaction tank is connected with a water outlet 51 of the oil distribution tank 5; alkali time delay jar 41 connects and takes off soap centrifuge 6, it connects soap jar 62 to take off soap centrifuge's saponin export 61, soap jar 62 connects holding vessel 63, it connects neutral oil blender 65 to take off soap centrifuge's oil-out 64, the material outlet 66 of this neutral oil blender connects the oil inlet 71 of first hydration time delay jar, the delivery port 51 of branch oil tank 5 is connected to the washing water import 67 of neutral oil blender, the washing water that adopts branch oil tank carries out the retrieval and utilization, the production cost is saved, can retrieve the residual oil in the washing water once more simultaneously, the refining rate is improved.
The material outlet 72 of the first hydration time-delay tank is connected with a first water washing centrifugal machine 73, the water outlet 74 of the first water washing centrifugal machine is connected with a saponin tank 62, the oil outlet 75 of the first water washing centrifugal machine is connected with the oil inlet 87 of the second hydration time-delay tank, the water inlet 81 of the second hydration time-delay tank is connected with a soft water tank 82, the material outlet 83 of the second hydration time-delay tank is connected with a second water washing centrifugal machine 84, the oil outlet 85 of the second water washing centrifugal machine is connected with the next procedure, and the washing water outlet 86 of the second water washing centrifugal machine is connected with the oil distribution tank 5.
In another embodiment, referring to fig. 2, it can be seen that the material outlet 46 of the alkali delay tank is connected with the heat exchanger 2, the heat exchanger 2 is connected with the material inlet 68 of the soap removing centrifuge, the heat exchange step is added, the oil after the neutralization reaction is heated to 80-90 ℃, the separation is convenient, and the separation effect is improved.
Example 3
With the device of example 2, the method for optimizing the refining production of soybean oil of the present invention may specifically comprise the following detailed steps:
(1) introducing the crude oil in the crude oil storage tank into a heat exchanger, heating the crude oil to 70-75 ℃, adding 80% phosphoric acid with the addition of 0.09 per mill, mixing in an acid mixer, then entering an acid delay tank, and performing delay stirring for 40-60 min.
(2) And the crude oil after acid treatment enters an alkali mixer from the acid delay tank, meanwhile, liquid alkali with the concentration of 15 percent is added into the alkali mixer, and after the mixture of the alkali mixer, the crude oil enters an alkali delay tank and enters the time delay stirring for 30-40 min.
(3) And (3) neutralizing the treated crude oil with alkali, heating the crude oil subjected to neutralization reaction to 80-85 ℃ through a heat exchanger, and separating the crude oil in a soap-removing centrifuge.
(4) The separated saponin enters a saponin tank, and the saponin tank enters a storage tank for storage in a tank area.
(5) And (4) feeding the neutral oil separated by the soaping centrifuge in the step (3) into a neutral oil mixer, mixing the neutral oil with the washing water in the oil separating tank, adding the recycled washing water in an amount of 2.3% of the weight of the neutral oil, and feeding the recycled washing water into a first hydration time delay tank for reaction for 20-30 min.
(6) Then the neutral oil enters a first water washing centrifuge.
(7) And the washing water separated by the first water washing centrifugal machine enters the saponin tank and is not recycled.
(8) Adding softened water with the temperature of 80-90 ℃ into the neutral oil subjected to primary water washing by the first water washing centrifugal machine, wherein the adding proportion is 2.5% of the weight of the neutral oil, and then, feeding the neutral oil into a second hydration time delay tank, wherein the reaction time is 15-20 minutes.
(9) And then the neutral oil enters a second water washing centrifugal machine for second water washing separation.
(10) The separated washing water enters a washing water oil tank 6, and the obtained qualified oil product enters the next procedure.
Example 4
In this example, phosphoric acid with a concentration of 83% was added in step (1) in addition to example 1 in an amount of 0.15% o.
In the step (5), the addition amount of the recycled washing water is 2.5% of the weight of the neutral oil, and then the recycled washing water enters a first hydration time delay tank, and the reaction time is 20 min.
In the step (8), the addition proportion is 2.5 percent of the weight of the neutral oil, and then the mixture enters a second hydration time delay tank, and the reaction time is 20 minutes.
The other technical characteristics are the same as those of the embodiment 1.
Example 5
In this example, phosphoric acid with a concentration of 78% was added in step (1) in addition to example 1 in an amount of 0.13 ‰.
In the step (5), the addition amount of the recycled washing water is 2.0% of the weight of the neutral oil, and then the recycled washing water enters a first hydration time delay tank, and the reaction time is 20 min.
In the step (8), the addition proportion is 2.0 percent of the weight of the neutral oil, and then the mixture enters a second hydration time delay tank, and the reaction time is 20 minutes.
The other technical characteristics are the same as those of the embodiment 1.
Test example 1
In this example, in addition to example 1, phosphoric acid was added in a concentration of 80% in step (1), and the addition amount was 0.08 ‰.
In the step (5), the addition amount of the recycled washing water is 2% of the weight of the neutral oil, and then the recycled washing water enters a first hydration time delay tank, and the reaction time is 40 min.
In the step (8), the addition proportion is 2.2 percent of the weight of the neutral oil, and then the mixture enters a second hydration time delay tank, and the reaction time is 10 minutes.
The other technical characteristics are the same as those of the embodiment 1.
Test example 2
In this example, in addition to example 1, phosphoric acid was added in a concentration of 75% in step (1), with the addition amount being 0.10% o.
In the step (5), the addition amount of the recycled washing water is 2.8% of the weight of the neutral oil, and then the recycled washing water enters a first hydration time delay tank, and the reaction time is 10 min.
In the step (8), the addition proportion is 2.8 percent of the weight of the neutral oil, and then the mixture enters a second hydration time delay tank, and the reaction time is 10 minutes.
The other technical characteristics are the same as those of the embodiment 1.
Although the present invention has been described in detail by referring to the drawings in conjunction with the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and substance of the present invention, and these modifications or substitutions are intended to be within the scope of the present invention/any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (4)
1. A device for optimizing refining production of soybean oil is characterized by comprising a crude oil storage tank, a first hydration delay tank and a second hydration delay tank, wherein the crude oil storage tank is connected with a heat exchanger, the heat exchanger is connected with an acid mixer, the acid mixer is connected with the acid delay tank, the acid delay tank is connected with an alkali mixer, a material outlet of the alkali mixer is connected with an alkali delay tank, an alkali water inlet of the alkali mixer is connected with an alkali reaction tank, and a water inlet of the alkali reaction tank is connected with a water outlet of an oil distribution tank; the alkali delay tank is connected with a soap removing centrifuge, a saponin outlet of the soap removing centrifuge is connected with a saponin tank, the saponin tank is connected with a storage tank, an oil outlet of the soap removing centrifuge is connected with a neutral oil mixer, and a material outlet of the neutral oil mixer is connected with an oil inlet of the first hydration delay tank; the material outlet of the first hydration time-delay tank is connected with a first water washing centrifugal machine, the water outlet of the first water washing centrifugal machine is connected with a gleditsia sinensis lam, the oil outlet of the first water washing centrifugal machine is connected with the oil inlet of a second hydration time-delay tank, the water inlet of the second hydration time-delay tank is connected with a soft water tank, the material outlet of the second hydration time-delay tank is connected with a second water washing centrifugal machine, the oil outlet of the second water washing centrifugal machine is connected to the next procedure, and the washing water outlet of the second water washing centrifugal machine is connected with an oil separating tank.
2. The apparatus for optimizing the refining production of soybean oil of claim 1, wherein said heat exchanger is a plate heat exchanger.
3. The apparatus for optimizing the refining production of soybean oil according to claim 1 or 2, wherein the material outlet of the alkali delay tank is connected with a heat exchanger, and the heat exchanger is connected with the material inlet of the soap removing centrifuge.
4. The apparatus for optimizing soybean oil refining production according to claim 1 or 2, wherein the washing water inlet of the neutral oil mixer is connected to the water outlet of the branched oil tank.
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