Dropwise adding system for adding antioxidant into fatty acid

Abstract

The utility model provides a dropwise adding system for adding an antioxidant into fatty acid. The dropwise adding system comprises a middle fatty acid liquid sealing tank, an upper vertical liquid conveying pipe, a lower vertical liquid conveying pipe, a finished fatty acid storage tank, an antioxidant storage tank and a pulse type metering pump, a bottom pipe opening of the upper vertical liquid conveying pipe is inserted into the inner tank bottom of the middle fatty acid liquid sealing tank, a top overflow opening of the middle fatty acid liquid sealing tank is communicated with a top pipe opening of the lower vertical liquid conveying pipe, and a bottom pipe opening of the lower vertical liquid conveying pipe is inserted into the inner tank bottom of the finished fatty acid storage tank. A bottom liquid outlet of the antioxidant storage tank is communicated with a liquid inlet of the pulse type metering pump through a pipeline, and a liquid outlet of the pulse type metering pump is communicated with an antioxidant liquid inlet in the lower vertical liquid conveying pipe through a pipeline. The antioxidant and the fatty acid are fully mixed and reacted before being contacted with oxygen, and the antioxidant effect is fully achieved after entering a tank and being contacted with part of oxygen, so that the color of the fatty acid is greatly improved and reaches APHA80, the color of the fatty acid is improved by APHA40, and the stability of the color of the fatty acid is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to fatty acid mixed preparation system technical field especially is related to a dropwise adding system of adding antioxidant to fatty acid. BACKGROUND

[0002] Industrial fatty acids have a variety of uses, mainly for manufacturing lubricants, surfactants, plastic and rubber additives, cosmetics and personal care products, detergents and cleaning agents, coatings and paints, candle manufacturing, pharmaceutical and medical industries. Industrial fatty acids are also widely used in the manufacture of fatty alcohols, soap, high-grade synthetic detergents, fiber softener, plasticizer, release agent, anti-caking agent, etc.

[0003] At present, the antioxidant is directly dropped into the finished fatty acid storage tank at the top of the open mouth of the finished fatty acid storage tank, which causes the antioxidant to not be fully mixed with the fatty acid, and the oxygen mixed in the finished fatty acid storage tank causes the fatty acid not contacted with the antioxidant to be oxidized first, so that the reaction has already lost the advantage after mixing with the antioxidant, and most of the antioxidant effect is lost, resulting in partial failure of the antioxidant function, and further resulting in poor color of the finished fatty acid. SUMMARY

[0004] The utility model discloses a dropwise adding system of adding antioxidant to fatty acid.

[0005] To solve the above technical problem, the utility model provides a technical scheme:

[0006] A dropwise adding system of adding antioxidant to fatty acid, comprising an intermediate fatty acid liquid seal tank, an upper vertical liquid conveying pipe, a lower vertical liquid conveying pipe, a finished fatty acid storage tank, an antioxidant storage tank and a pulse type metering pump.

[0007] The bottom pipe opening of the upper vertical liquid conveying pipe is inserted into the inner tank bottom of the intermediate fatty acid liquid seal tank, and the top pipe opening of the upper vertical liquid conveying pipe is used for being communicated with the bottom liquid outlet of the condenser of the fatty acid distillation tower, so as to make the fatty acid in the condenser flow downward into the intermediate fatty acid liquid seal tank through the upper vertical liquid conveying pipe.

[0008] The top overflow port of the intermediate fatty acid liquid seal tank is communicated with the top pipe opening of the lower vertical liquid conveying pipe, and the bottom pipe opening of the lower vertical liquid conveying pipe is inserted into the inner tank bottom of the finished fatty acid storage tank, so as to make the fatty acid overflowing from the intermediate fatty acid liquid seal tank flow downward into the finished fatty acid storage tank through the lower vertical liquid conveying pipe.

[0009] An antioxidant liquid inlet is formed in the pipe wall of the middle upper part of the lower vertical liquid conveying pipe.

[0010] The bottom liquid outlet of the antioxidant storage tank is communicated with the liquid inlet of the pulse metering pump through a pipeline, and the liquid outlet of the pulse metering pump is communicated with the antioxidant liquid inlet on the lower vertical liquid conveying pipe through a pipeline;

[0011] The wall of the lower vertical liquid conveying pipe above the antioxidant liquid inlet is provided with an original fatty acid liquid outlet sampling port before the addition of the antioxidant.

[0012] The top wall of the finished fatty acid storage tank is provided with a top opening, and the lateral tank wall of the finished fatty acid storage tank is provided with a finished fatty acid liquid outlet sampling port after the addition of the antioxidant.

[0013] Preferably, the antioxidant storage tank is a closed tank body.

[0014] A rubber piston is arranged in the cavity of the antioxidant storage tank, and the outer diameter surface of the rubber piston is in sealing contact with the inner wall surface of the antioxidant storage tank, so that the rubber piston divides the cavity of the antioxidant storage tank into an upper fatty acid closed storage cavity and a lower antioxidant closed storage cavity which are not communicated with each other.

[0015] The bottom liquid outlet of the lower antioxidant closed storage cavity is communicated with the liquid inlet of the pulse metering pump through a pipeline.

[0016] The top liquid inlet of the upper fatty acid closed storage cavity is communicated with the top overflow port of the intermediate fatty acid liquid seal tank through a pipeline, so that the fatty acid overflowing from the intermediate fatty acid liquid seal tank flows downward into the upper fatty acid closed storage cavity, and then when the antioxidant in the lower antioxidant closed storage cavity is pumped out to reduce the volume, the fatty acid in the upper fatty acid closed storage cavity presses the rubber piston to slide downward, and when the antioxidant is supplemented into the lower antioxidant closed storage cavity to increase the volume, the antioxidant in the lower antioxidant closed storage cavity lifts the rubber piston to slide upward.

[0017] Preferably, a sampling valve is arranged at each of the original fatty acid liquid outlet sampling port and the finished fatty acid liquid outlet sampling port.

[0018] The application achieves the following beneficial technical effects:

[0019] The physical effect of the dropwise addition system provided by the application is: the mixer function makes the antioxidant and the fatty acid fully mixed and uniform, achieving the best effect; the chemical effect is that the antioxidant and the fatty acid are fully mixed and reacted before contacting oxygen, and fully play the antioxidant effect after contacting part of the oxygen in the tank.

[0020] In the application, the antioxidant exerts the maximum antioxidant function after contacting oxygen in the tank, and the maximum effect is achieved, the color of the fatty acid at the liquid outlet of the finished fatty acid storage tank reaches APHA 80, and the color of the fatty acid sampled from the finished fatty acid storage tank before the improvement is APHA 40, which is improved by APHA 40 than before the improvement.

[0021] The dropwise adding system provided by the application greatly improves the color of the fatty acid, improves the color by APHA 40 than the prior art, makes the antioxidant exert the maximum effect, ensures the stability of the color of the fatty acid, and reaches the high standard of finished product delivery. BRIEF DESCRIPTION OF DRAWINGS

[0022] Fig. 1 A structure schematic view of a dropwise adding system for adding an antioxidant to fatty acid is provided for an embodiment of the application.

[0023] Fig. 2 A structure schematic view of a dropwise adding system for adding an antioxidant to fatty acid is provided for another embodiment of the application.

[0024] In the drawing: 001, a condenser of a fatty acid distillation tower;

[0025] 1, an intermediate fatty acid liquid seal tank, 2, an upper vertical liquid conveying pipe, 3, a lower vertical liquid conveying pipe, 301, an original fatty acid liquid outlet sampling port, 4, a finished fatty acid storage tank, 401, a finished fatty acid liquid outlet sampling port;

[0026] 5, an antioxidant storage tank, 501, a rubber piston, 502, an upper fatty acid airtight storage cavity, 503, a lower antioxidant airtight storage cavity, 6, a pulse type metering pump. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the application clearer, the technical scheme in the embodiments of the application will be described clearly and completely in combination with the drawings in the embodiments of the application. Obviously, the described embodiments are part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the application.

[0028] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "axial direction", "radial direction", "longitudinal direction", "transverse direction", "length", "width", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0029] Referring to Figs. 1-2 , in the figure: condenser 001 of fatty acid distillation tower; intermediate fatty acid liquid seal tank 1, upper vertical liquid conveying pipe 2, lower vertical liquid conveying pipe 3, original fatty acid liquid outlet sampling port 301, finished fatty acid storage tank 4, finished fatty acid liquid outlet sampling port 401; antioxidant storage tank 5, rubber piston 501, upper fatty acid airtight storage cavity 502, lower antioxidant airtight storage cavity 503, pulse type metering pump 6.

[0030] The application provides a kind of to add antioxidant to fatty acid drop system, including intermediate fatty acid liquid seal tank 1, upper vertical liquid conveying pipe 2, lower vertical liquid conveying pipe 3, finished fatty acid storage tank 4, antioxidant storage tank 5, pulse type metering pump 6;

[0031] The bottom pipe opening of the upper vertical liquid conveying pipe 2 is inserted into the inner tank bottom of the intermediate fatty acid liquid seal tank 1, and the top pipe opening of the upper vertical liquid conveying pipe 2 is used to communicate with the bottom liquid outlet of the condenser 001 of the fatty acid distillation tower, so that the fatty acid in the condenser 001 flows downward by gravity through the upper vertical liquid conveying pipe 2 into the intermediate fatty acid liquid seal tank 1.

[0032] The top overflow port of the intermediate fatty acid liquid seal tank 1 communicates with the top pipe opening of the lower vertical liquid conveying pipe 3, and the bottom pipe opening of the lower vertical liquid conveying pipe 3 is inserted into the inner tank bottom of the finished fatty acid storage tank 4, so that the fatty acid overflowing from the intermediate fatty acid liquid seal tank 1 flows downward by gravity through the lower vertical liquid conveying pipe 3 into the finished fatty acid storage tank 4.

[0033] An antioxidant liquid inlet is formed in the pipe wall of the middle upper part of the lower vertical liquid conveying pipe 3.

[0034] The bottom liquid outlet of the antioxidant storage tank 5 communicates with the liquid inlet of the pulse type metering pump 6 through a pipeline, and the liquid outlet of the pulse type metering pump 6 communicates with the antioxidant liquid inlet on the lower vertical liquid conveying pipe 3 through a pipeline.

[0035] The pipe wall of the lower vertical liquid conveying pipe 3 above the antioxidant liquid inlet is provided with an original fatty acid liquid outlet sampling port 301 before adding antioxidant;

[0036] The top wall of the finished fatty acid storage tank 4 is provided with a top open port, and the lateral tank wall of the finished fatty acid storage tank 4 is provided with a finished fatty acid liquid outlet sampling port 401 after adding antioxidant.

[0037] In an embodiment of the present application, the antioxidant storage tank 5 is a closed tank body;

[0038] A rubber piston 501 is arranged in the tank cavity of the antioxidant storage tank 5, and the outer diameter surface of the rubber piston 501 is in sealing contact with the inner wall surface of the antioxidant storage tank 5, so as to divide the tank cavity of the antioxidant storage tank 5 into an upper fatty acid closed storage cavity 502 and a lower antioxidant closed storage cavity 503 which are not communicated with each other;

[0039] The bottom liquid outlet of the lower antioxidant closed storage cavity 503 is communicated with the liquid inlet of the pulse type metering pump 6 through a pipeline;

[0040] The top liquid inlet of the upper fatty acid closed storage cavity 502 is communicated with the top overflow port of the intermediate fatty acid liquid seal tank 1 through a pipeline, so as to make the fatty acid overflowing from the intermediate fatty acid liquid seal tank 1 flow downward into the upper fatty acid closed storage cavity 502 by gravity, and then when the antioxidant in the lower antioxidant closed storage cavity 503 is pumped out to reduce the volume, the fatty acid in the upper fatty acid closed storage cavity 502 compresses the rubber piston 501 to slide downward, and when the antioxidant is supplemented into the lower antioxidant closed storage cavity 503 to increase the volume, the antioxidant in the lower antioxidant closed storage cavity 503 lifts the rubber piston 501 to slide upward.

[0041] In an embodiment of the present application, a sampling valve is arranged at each of the original fatty acid liquid outlet sampling port 301 and the finished fatty acid liquid outlet sampling port 401.

[0042] The operation steps of the dropwise adding system for adding antioxidant to fatty acid provided by the present application are as follows:

[0043] (1) A DN15 valve is opened on the lower vertical liquid conveying pipe 3 between the intermediate fatty acid liquid seal tank 1 and the finished fatty acid storage tank 4, a transparent hose is connected to the liquid outlet of the pulse type metering pump 6, the transparent hose at the bottom of the antioxidant storage tank 5 which is greater than 5 liters is connected to the liquid inlet of the pulse type metering pump 6, the pulse type metering pump 6 is fixed, and the power supply is turned on;

[0044] (2). Pour the prepared antioxidant into the antioxidant storage tank 5, then open the pulse metering pump 6, adjust the flow and pulse frequency to 5 liters / 12 hours, so that the antioxidant is evenly poured into the lower vertical delivery pipe 3;

[0045] (3). The antioxidant in the lower vertical delivery pipe 3 is fully mixed with the fatty acid, and enters the finished fatty acid storage tank 4 together with the fatty acid.

[0046] In this application, APHA color, also known as Hazen scale, and more appropriately as platinum cobalt (Pt / Co) scale, is a color standard defined by ASTM D1209. It was originally intended to describe the color of wastewater, but its use has been expanded to include other industrial applications. APHA color is a color scale, sometimes also called "yellow index", used to assess the quality of liquids with color ranging from transparent to light yellow.

[0047] In this application, the mechanism of action of antioxidants is as follows: (1) by the reduction reaction of antioxidants, the oxygen content inside and around the food is reduced, some antioxidants such as ascorbic acid and erythorbic acid are easily oxidized themselves, which can make the oxygen in the food react with them first, thereby avoiding the oxidation of oil;

[0048] (2) The antioxidant releases hydrogen atoms to combine with peroxides produced by the autoxidation reaction of oil, interrupting the chain reaction and thus preventing the oxidation process from continuing;

[0049] (3) By destroying and weakening the activity of oxidase, it cannot catalyze the oxidation reaction;

[0050] (4) Enclose substances that can catalyze and cause oxidation reactions, such as complex metal ions that can catalyze oxidation reactions.

[0051] Methods and devices not fully described in the utility model are prior art and will not be described again.

[0052] The principles and implementation methods of the utility model are described in the specific examples in this paper, and the above examples are only used to help understand the method and core idea of the utility model. It should be noted that for ordinary skilled persons in the technical field, without departing from the principles of the utility model, the utility model can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the utility model claims.

Claims

1. A dropwise addition system for adding an antioxidant to a fatty acid, characterized by, The intermediate fatty acid liquid seal tank, the upper vertical liquid conveying pipe, the lower vertical liquid conveying pipe, the finished fatty acid storage tank, the antioxidant storage tank, and the pulse type metering pump are arranged in sequence; The bottom pipe opening of the upper vertical liquid conveying pipe is inserted into the inner tank bottom of the intermediate fatty acid liquid seal tank, and the top pipe opening of the upper vertical liquid conveying pipe is used for being communicated with the bottom liquid outlet of the condenser of the fatty acid distillation tower, so that the fatty acid in the condenser flows downward into the intermediate fatty acid liquid seal tank through the upper vertical liquid conveying pipe; The top overflow opening of the intermediate fatty acid liquid seal tank is communicated with the top pipe opening of the lower vertical liquid conveying pipe, and the bottom pipe opening of the lower vertical liquid conveying pipe is inserted into the inner tank bottom of the finished fatty acid storage tank, so that the fatty acid overflowing from the intermediate fatty acid liquid seal tank flows downward into the finished fatty acid storage tank through the lower vertical liquid conveying pipe; An antioxidant liquid inlet is arranged on the pipe wall of the middle upper part of the lower vertical liquid conveying pipe; The bottom liquid outlet of the antioxidant storage tank is communicated with the liquid inlet of the pulse type metering pump through a pipeline, and the liquid outlet of the pulse type metering pump is communicated with the antioxidant liquid inlet on the lower vertical liquid conveying pipe through a pipeline; An original fatty acid liquid outlet sampling port before adding the antioxidant is arranged on the pipe wall of the lower vertical liquid conveying pipe above the antioxidant liquid inlet; A top opening is arranged on the top wall of the finished fatty acid storage tank, and a finished fatty acid liquid outlet sampling port after adding the antioxidant is arranged on the lateral tank wall of the finished fatty acid storage tank.

2. The antioxidant addition drop system to a fatty acid according to claim 1, characterized by, The antioxidant storage tank is a closed tank body; A rubber piston is arranged in the tank inner cavity of the antioxidant storage tank, and the outer diameter surface of the rubber piston is in sealing contact with the inner wall surface of the antioxidant storage tank, so that the rubber piston divides the tank inner cavity of the antioxidant storage tank into an upper fatty acid closed storage cavity and a lower antioxidant closed storage cavity which are not communicated with each other; The bottom liquid outlet of the lower antioxidant closed storage cavity is communicated with the liquid inlet of the pulse type metering pump through a pipeline; The top liquid inlet of the upper fatty acid closed storage cavity is communicated with the top overflow opening of the intermediate fatty acid liquid seal tank through a pipeline, so that the fatty acid overflowing from the intermediate fatty acid liquid seal tank flows downward into the upper fatty acid closed storage cavity, and then when the antioxidant in the lower antioxidant closed storage cavity is drawn out to reduce the volume, the fatty acid in the upper fatty acid closed storage cavity presses the rubber piston to slide downward, and when the antioxidant is supplemented into the lower antioxidant closed storage cavity to increase the volume, the antioxidant in the lower antioxidant closed storage cavity lifts the rubber piston to slide upward.

3. The antioxidant addition system to fatty acids according to claim 1, wherein Sampling valves are respectively arranged at the original fatty acid liquid outlet sampling port and the finished fatty acid liquid outlet sampling port.

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