CN103706285B - Method and system for adding antioxidant for edible oil - Google Patents

Method and system for adding antioxidant for edible oil Download PDF

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Publication number
CN103706285B
CN103706285B CN201310725215.5A CN201310725215A CN103706285B CN 103706285 B CN103706285 B CN 103706285B CN 201310725215 A CN201310725215 A CN 201310725215A CN 103706285 B CN103706285 B CN 103706285B
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tank body
control centre
antioxidant
liquid level
mother liquor
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CN103706285A (en
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潘坤
李静
陈卫东
刘帅
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NANHAI GREASE INDUSTRIAL (CHI WAN) Co Ltd
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NANHAI GREASE INDUSTRIAL (CHI WAN) Co Ltd
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Abstract

The invention discloses a method and a system for adding an antioxidant for edible oil, which are applied to an adding technology of the antioxidant for the edible oil. The system comprises a control center and a tank body for mixing edible oil and the antioxidant into mother liquor; a temperature sensor and a liquid level sensor are arranged inside the tank body, and connected with the control center; the control center controls the adding amount of the edible oil and the pump output of the mother liquor according to signals of the liquid level sensor; the control center controls the heating temperature of the tank body according to signals of the temperature sensor. Chain feedback of oil temperature inside the tank body and opening of a steam valve is set in the system, so as to achieve automatic control of the oil temperature, the flow of the antioxidant mother liquor is controlled through chain feedback of an oil output pump, a plunger pump and the liquid level signal, and uniform adding of the antioxidant is ensured. A misoperation alarm device is also arranged in the system, so that a production accident is avoided, and the productive efficiency is improved.

Description

A kind of oil antioxidant adding method and system
Technical field
The present invention relates to technical field of oil chemical industry, particularly relate to the automatic adding technique of oil antioxidant, be i.e. a kind of oil antioxidant adding method and system.
Background technology
Due to the characteristic of lipid structures, it is easily oxidized, and can produce grease local flavor, color and luster and organize and all can produce harmful effect, to such an extent as to shorten the shelf life of grease after Oxidation of Fat and Oils, reduce the nutritional quality of grease, so need to add suitable antioxidant to carry out anti-oxidation in grease.
Existing interpolation antioxidant technique is generally take the antioxidant of batch corresponding to grease, then antioxidant is imported preparing tank, a certain amount of grease is added in preparing tank, with steam, batch tank is heated again, then utilize agitator to be dissolved by antioxidant and form antioxidant mother liquor, then this antioxidant mother liquor is pumped into interpolation tank, by adding the pump of tank, antioxidant mother liquor is joined in grease duct again, as found the speed that uneven need adjust antioxidant mother liquor in time and pump into during interpolation.
Above-mentioned existing technique has following shortcoming: 1, this technique can not accurately control the temperature of grease, and when heating-up temperature Gao Shihui causes antioxidants break down, antioxidant then can be caused when temperature is low not dissolve completely, finally cause antioxidant addition inaccurate; 2, the interpolation speed of antioxidant is difficult to control, cause antioxidant solubility uneven with, the antioxidant concentration in grease is easily exceeded standard.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art, the object of the present invention is to provide a kind of oil antioxidant adding method and system, be intended to solve the problem that current existing technique can not realize accurately evenly adding in grease antioxidant.
Technical scheme of the present invention is as follows:
A kind of oil antioxidant add-on system, wherein, described system comprises control centre and is mixed into the tank body of mother liquor for grease and antioxidant, in described tank body, the temperature sensor be connected with described control centre and liquid level sensor are set, described control centre controls the addition of grease and the pump output of mother liquor according to the signal of described liquid level sensor, and described control centre controls the heating-up temperature of described tank body according to the signal of described temperature sensor.
Described oil antioxidant add-on system, wherein, described system comprises the oil outlet pump be connected with described tank body for adding grease to described tank body, described oil outlet pump and described tank body connecting pipe are provided with pneumatic operated valve, described pneumatic operated valve is connected with described control centre, and described control centre controls the grease addition of described oil outlet pump by described pneumatic operated valve.
Described oil antioxidant add-on system, wherein, described system comprises and is connected for the jet chimney by tank body described in Steam Heating with described tank body, on described jet chimney arrange be used for steam regulation amount ratio adjusting valve, described ratio adjusting valve is connected with described control centre, and described control centre controls the quantity of steam of heating tank body thus the heating-up temperature controlled described tank body by described ratio adjusting valve.
Described oil antioxidant add-on system, wherein, described system comprises the plunger displacement pump be connected with described tank body for being joined by the mother liquor in described tank body in grease duct, described plunger displacement pump is provided with the converter plant be connected with described control centre, described control centre controls the pump output of described plunger displacement pump to mother liquor by converter plant.
Described oil antioxidant add-on system, wherein, described system also comprises warning device, and described warning device is connected with described control centre, and alarm is made by the maloperation of described warning device to system operators by described control centre.
Described oil antioxidant add-on system, wherein, described oil outlet pump, plunger displacement pump place arrange flowmeter respectively, and described flowmeter is connected with described control centre.
Described oil antioxidant add-on system, wherein, arrange the mixed liquor of agitator to grease and antioxidant in described tank body and stir, the control device of described agitator is connected with control centre.
One utilizes oil antioxidant add-on system as above to carry out antioxidant adding method, wherein, said method comprising the steps of:
A, in described tank body, add the antioxidant of intended component, described oil outlet pump adds grease in described tank body, when described control centre judge described liquid level sensor collect liquid level in tank body reach the signal in precalculated position time, described control centre controls described pneumatic operated valve and closes described oil outlet pump, stops adding of grease;
B, the mixed liquor of the grease in described tank body and antioxidant to be stirred, and heated by described jet chimney, described control centre receives described temperature sensor and collects mixeding liquid temperature, and control described ratio adjusting valve according to this temperature, thus steam regulation pipeline quantity of steam, make the mixeding liquid temperature in tank body reach predetermined temperature;
C, after described mixed liquor forms mother liquor, described control centre controls the mother liquor pump output of described plunger displacement pump by described converter plant.
Described oil antioxidant adding method, wherein, described step C is specially: mother liquor pumps in process, and the liquid level signal of the changes in flow rate that described control centre adds according to the grease of described oil outlet pump and described liquid level sensor controls the mother liquor that described converter plant adjusts described plunger displacement pump in real time and pumps flow.
Described oil antioxidant adding method, wherein, also comprised before antioxidant adds: the heart pre-sets the oil product title of producing in tank body liquid level position, mixeding liquid temperature, the interpolation kind of antioxidant, the tank body corresponding with such antioxidant, grease duct in the controlling.
Described oil antioxidant adding method, wherein, when antioxidant adding procedure starts, whether the tank body that current startup detects in described control centre, the oil product produced be consistent with presupposed information, when tank body is inconsistent corresponding to the antioxidant added needed for described control centre detects the tank body of current startup and presets, then starts described warning device and carry out alarm.
Beneficial effect: the invention provides a kind of oil antioxidant adding method and system, the automatic control of oil temperature is achieved by arranging oil temperature and the chain feedback of steam valve aperture in tank body in systems in which, the control of antagonism oxidizer mother liquor flow is realized by the chain feedback of oil outlet pump, plunger displacement pump and liquid level signal, ensure that the uniformity of antioxidant is added, and system is also provided with wrong way alarm device, avoid the generation of production accident, improve prouctiveness.
Accompanying drawing explanation
Fig. 1 is oil antioxidant add-on system theory diagram of the present invention.
Fig. 2 is oil antioxidant adding method flow chart of the present invention.
Fig. 3 is oil antioxidant add-on system schematic diagram in preferred embodiment.
Detailed description of the invention
The invention provides a kind of oil antioxidant adding method and system, for making object of the present invention, technical scheme and effect clearly, clearly, the present invention is described in more detail below.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
A kind of oil antioxidant add-on system as described in Figure 1, wherein, described system comprises control centre 100 and is mixed into the tank body 200 of mother liquor for grease and antioxidant, the temperature sensor 210 and liquid level sensor 220 that are connected with described control centre are set in described tank body 200, described control centre controls the addition of grease and the pump output of mother liquor according to the signal of described liquid level sensor, and described control centre controls the heating-up temperature of described tank body according to the signal of described temperature sensor.
Further, described system comprises the oil outlet pump 310 being connected with described tank body and adding grease to described tank body, described oil outlet pump and described tank body connecting pipe are provided with pneumatic operated valve 311, described pneumatic operated valve 311 is connected with described control centre, and described control centre controls the grease addition of described oil outlet pump by described pneumatic operated valve.
Further, described system comprises and is connected for the jet chimney 330 by tank body described in Steam Heating with described tank body, described jet chimney 330 Set scale control valve 331, described ratio adjusting valve 331 is connected with described control centre, and described control centre controls the quantity of steam of described jet chimney by described ratio adjusting valve thus controls heating-up temperature to described tank body.The steam of described jet chimney is produced by steam generator.Arrange chuck outside described tank body and be communicated with jet chimney, the steam that steam generator produces enters chuck by jet chimney and heats tank body.When temperature sensor detected temperatures is inadequate, by its Signal transmissions to ratio adjusting valve, aperture is become large by ratio adjusting valve, and quantity of steam strengthens, and oil temperature is raised; When reaching design temperature to temperature sensor detected temperatures, by its Signal transmissions to ratio adjusting valve, aperture diminishes by ratio adjusting valve, and quantity of steam diminishes, and makes oil temperature be stabilized in design temperature.Prevent that temperature is too high makes antioxidants break down, or temperature is low and antioxidant can not dissolve completely.
Further, described system comprises the plunger displacement pump 340 be connected with described tank body for being joined by the mother liquor in described tank body in grease duct, described plunger displacement pump is provided with the converter plant 341 be connected with described control centre, described control centre controls the pump output of described plunger displacement pump to mother liquor by converter plant.
In preferred embodiment, described system also comprises warning device, and described warning device is connected with described control centre, and alarm is made by the maloperation of described warning device to system operators by described control centre.
In preferred embodiment, described oil outlet pump, plunger displacement pump place arrange flowmeter respectively, and described flowmeter is connected with described control centre.Described control centre by flowmeter obtain grease add flow and mother liquor pump flow.
Certainly, arrange the mixed liquor of agitator to grease and antioxidant in described tank body and stir, the control device of described agitator is connected with control centre.When antioxidant add need to mix after tank body time, described control centre starts Steam Heating and uses agitator to stir and evenly mix simultaneously.
One as shown in Figure 2 utilizes oil antioxidant add-on system as above to carry out antioxidant adding method, wherein, said method comprising the steps of:
S100, in described tank body, add the antioxidant of intended component, described oil outlet pump adds grease in described tank body, when described control centre judge described liquid level sensor collect liquid level in tank body reach the signal in precalculated position time, described control centre controls described pneumatic operated valve and closes described oil outlet pump, stops adding of grease;
S200, the mixed liquor of the grease in described tank body and antioxidant to be stirred, and heated by described jet chimney, described control centre receives described temperature sensor and collects mixeding liquid temperature, and control described ratio adjusting valve according to this temperature, thus steam regulation pipeline quantity of steam, make the mixeding liquid temperature in tank body reach predetermined temperature;
S300, after described mixed liquor forms mother liquor, described control centre controls the mother liquor pump output of described plunger displacement pump by described converter plant.
In preferred embodiment, described step S300 is specially: mother liquor pumps in process, and the liquid level signal of the changes in flow rate that described control centre adds according to the grease of described oil outlet pump and described liquid level sensor controls the mother liquor that described converter plant adjusts described plunger displacement pump in real time and pumps flow.Namely plunger displacement pump, oil outlet pump, liquid level sensor three carry out chain, and when fuel-displaced velocity variations, the interpolation speed of plunger displacement pump also changes thereupon, thus ensure that the interpolation uniformity of antioxidant.In preferred embodiment, mixed liquor liquid level and mother liquor pump flow directly in the controlling heart display screen can show numerical value, and its corresponding computing formula is as follows:
L-mother liquor tank mother liquor actual liquid level (%);
Q-configure oil mass (t) corresponding to this batch of antioxidant;
The oil mass (t) of q-gone out;
The initial liquid level (%) of l-configuration mother liquor.
Thus automatically control addition by control centre, the even of antioxidant can be ensured, prevent antioxidant from exceeding standard.
In preferred embodiment, also comprised before antioxidant adds: the heart pre-sets the oil product title of producing in tank body liquid level position, mixeding liquid temperature, the interpolation kind of antioxidant, the tank body corresponding with such antioxidant, grease duct in the controlling.
When grease adds appointment liquid level to, control centre controls pneumatic operated valve and closes, and stop draining the oil, if do not carry out liquid level setting, then system default liquid level is 100%, and when liquid level adds 100% to, control centre controls pneumatic operated valve and automatically closes, and stops draining the oil.Which reduce the operation of personnel.
When antioxidant adding procedure starts, whether the tank body that current startup detects in described control centre, the oil product produced be consistent with presupposed information, when tank body is inconsistent corresponding to the antioxidant added needed for described control centre detects the tank body of current startup and presets, then starts described warning device and carry out alarm.The antioxidant kind that different oil products adds is different, for preventing cross pollution, generally need set two and adding antioxidant corresponding to tank fixed configurations.The heart arranges the oil product that fuel-displaced port is produced in the controlling, and the antioxidant tank that this oil product of setting is corresponding further, as it is desirable that the antioxidant of A tank, during operator's maloperation use B tank antioxidant, control centre will start and reports to the police and quit work, thus prevents the mistake of antioxidant to add.
Be illustrated in figure 3 the specific embodiment of oil antioxidant add-on system, antioxidant tank A and antioxidant tank B is set.Both are fixing respectively adds different types of antioxidant, now with regard to antioxidant tank A, system configuration antioxidant mother liquor process is described, system comprises tank body 200, grease pumps in tank body by oil-in 202 by oil outlet pump, antioxidant joins tank body from the dog-house 201 of tank body upper end afterwards, and wherein said oil-in place arranges operated pneumatic valve 311 and pumps into process in order to control grease.Steam is entered the chuck layer that tank body is arranged and starts heating to tank body by jet chimney 330, jet chimney Set scale control valve 331 realizes the control to pipeline steam addition, and the temperature sensor 210 that tank body is arranged gathers fluid temperature in tank body, and temperature signal is reached control centre, thus comparative example control valve carries out feedback regulation, control fluid temperature in tank body and remain at design temperature.Bottom chuck layer, be provided with steam drainage system 206, steam condensate (SC) is flowed out by steam drainage system.Being stirred by liquid in agitator 204 pairs of tank bodies by steam-heated simultaneously, promote the dissolving of antioxidant.When in tank body, antioxidant mother liquor just flows out tank body by oil-out 203 after being formed, be pumped in product pipeline further by frequency conversion plunger displacement pump 342, described oil-out 203 place arranges the opening and closing that operated pneumatic valve 205 controls fuel-displaced oil circuit, the adjustment to mother liquor addition is realized by the frequency conversion plunger displacement pump be connected with control centre, described flowline is also provided with the flowmeter 209 be connected with control centre, inflow pipeline also can be arranged and control centre's connection traffic meter in addition, control centre regulates the flow of frequency conversion plunger displacement pump and grease to add flow according to the liquid level signal of liquid level sensor in the data of the flowmeter on inflow pipeline and flowline and tank body, make the interpolation speed of fuel-displaced velocity variations and plunger displacement pump chain, thus ensure that the interpolation uniformity of antioxidant.In addition, described flowline is also arranged the opening and closing that operated pneumatic valve 205 controls fuel-displaced oil circuit, relief valve 208 is set at described inflow pipeline and ensures normal, the described flowline of pipeline oil positive pressure to be arranged equally relief valve regulation and control pipeline oil pressure.In addition flowline is also arranged valve for hand switch oil circuit.
In preferred embodiment, arrange antioxidant tank A be connected same frequency conversion plunger displacement pump 342 with the flowline of antioxidant tank B and then be connected on product pipeline, when by adding a certain class antioxidant, use antioxidant tank A, and use antioxidant tank B when adding another kind of antioxidant.The heart can input the information such as the interpolation kind of antioxidant, the tank body corresponding with such antioxidant in the controlling.Afterwards in antioxidant adding procedure, described control centre detects the current tank body enabled and whether belongs to the corresponding tank body adding such antioxidant, when corresponding to the antioxidant added needed for described control centre detects the tank body of current startup and presets, tank body is inconsistent, then start and report to the police and quit work, ensure that antioxidant there will not be the accident of by mistake adding.
The invention provides a kind of oil antioxidant adding method and system, the automatic control of oil temperature is achieved by arranging oil temperature and the chain feedback of steam valve aperture in tank body in systems in which, the control of antagonism oxidizer mother liquor flow is realized by the chain feedback of oil outlet pump, plunger displacement pump and liquid level signal, ensure that the uniformity of antioxidant is added, and system is also provided with wrong way alarm device, avoid the generation of production accident, improve prouctiveness.
Should be understood that, application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to claims of the present invention.

Claims (1)

1. an oil antioxidant add-on system carries out the method for antioxidant interpolation, described system comprises control centre and is mixed into the tank body of mother liquor for grease and antioxidant, in described tank body, the temperature sensor be connected with described control centre and liquid level sensor are set, described control centre controls the addition of grease and the pump output of mother liquor according to the signal of described liquid level sensor, and described control centre controls the heating-up temperature of described tank body according to the signal of described temperature sensor;
Described system comprises the oil outlet pump be connected with described tank body for adding grease to described tank body, described oil outlet pump and described tank body connecting pipe are provided with pneumatic operated valve, described pneumatic operated valve is connected with described control centre, and described control centre controls the grease addition of described oil outlet pump by described pneumatic operated valve;
Described system comprises the plunger displacement pump be connected with described tank body for being joined by the mother liquor in described tank body in grease duct, described plunger displacement pump is provided with the converter plant be connected with described control centre, described control centre controls the pump output of described plunger displacement pump to mother liquor by converter plant;
Described system also comprises warning device, and described warning device is connected with described control centre, and alarm is made by the maloperation of described warning device to system operators by described control centre;
Described control centre controls according to the changes in flow rate of the grease addition of described oil outlet pump and the liquid level signal of described liquid level sensor the mother liquor that described converter plant adjusts described plunger displacement pump in real time and pumps flow;
Described system comprises and is connected for the jet chimney by tank body described in Steam Heating with described tank body, described jet chimney is arranged the ratio adjusting valve being used for steam regulation amount, described ratio adjusting valve is connected with described control centre, and described control centre controls the quantity of steam of heating tank body thus the heating-up temperature controlled described tank body by described ratio adjusting valve;
Described oil outlet pump, plunger displacement pump place arrange flowmeter respectively, and described flowmeter is connected with described control centre;
When described liquid level adds 100% to, control centre controls air valve and automatically closes, and stops draining the oil, it is characterized in that, said method comprising the steps of:
A, in described tank body, add the antioxidant of intended component, described oil outlet pump adds grease in described tank body, when described control centre judge described liquid level sensor collect liquid level in tank body reach the signal in precalculated position time, described control centre controls described pneumatic operated valve and closes described oil outlet pump, stops adding of grease;
B, the mixed liquor of the grease in described tank body and antioxidant to be stirred, and heated by described jet chimney, described control centre receives described temperature sensor and collects mixeding liquid temperature, and control described ratio adjusting valve according to this temperature, thus steam regulation pipeline quantity of steam, make the mixeding liquid temperature in tank body reach predetermined temperature;
C, after described mixed liquor forms mother liquor, described control centre controls the mother liquor pump output of described plunger displacement pump by described converter plant;
Described control centre controls according to the changes in flow rate of the grease addition of described oil outlet pump and the liquid level signal of described liquid level sensor the mother liquor that described converter plant adjusts described plunger displacement pump in real time and pumps flow;
When antioxidant adding procedure starts, whether the tank body that current startup detects in described control centre, the oil product produced be consistent with presupposed information, when tank body is inconsistent corresponding to the antioxidant added needed for described control centre detects the tank body of current startup and presets, then starts described warning device and carry out alarm;
Described step C is specially: mother liquor pumps in process, and the liquid level signal of the changes in flow rate that described control centre adds according to the grease of described oil outlet pump and described liquid level sensor controls the mother liquor that described converter plant adjusts described plunger displacement pump in real time and pumps flow;
Also comprised before antioxidant adds: the heart pre-sets the oil product title of producing in tank body liquid level position, mixeding liquid temperature, the interpolation kind of antioxidant, the tank body corresponding with such antioxidant, grease duct in the controlling;
When described liquid level adds 100% to, control centre controls air valve and automatically closes, and stops draining the oil;
The computing formula that described mother liquor liquid level and mother liquor pump flow is as follows: , L-mother liquor tank mother liquor actual liquid level (%); Q-configure oil mass (t) corresponding to this batch of antioxidant; The oil mass (t) of q-gone out; The initial liquid level (%) of l-configuration mother liquor.
CN201310725215.5A 2013-12-25 2013-12-25 Method and system for adding antioxidant for edible oil Active CN103706285B (en)

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CN104286223A (en) * 2014-11-03 2015-01-21 章文婕 Energy-saving production method of functional edible oil
CN114082512A (en) * 2021-11-02 2022-02-25 龙佰禄丰钛业有限公司 Crushing auxiliary agent adding system in titanium dioxide production by chlorination process

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