CN110747051A - Method for water-adding sesame seed oil and oil-discharging process by water substitution method - Google Patents
Method for water-adding sesame seed oil and oil-discharging process by water substitution method Download PDFInfo
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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
- C11B1/00—Production of fats or fatty oils from raw materials
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- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23D—EDIBLE OILS OR FATS, e.g. MARGARINES, SHORTENINGS, COOKING OILS
- A23D9/00—Other edible oils or fats, e.g. shortenings, cooking oils
- A23D9/02—Other edible oils or fats, e.g. shortenings, cooking oils characterised by the production or working-up
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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
- C11B1/00—Production of fats or fatty oils from raw materials
- C11B1/02—Pretreatment
- C11B1/04—Pretreatment of vegetable raw material
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Abstract
A method for producing refined sesame seed oil by adding water into sesame seed oil. The method comprises six steps, wherein the first step is raw material screening; rinsing the raw materials in the second step, and frying in the third step; fourthly, raising the smoke and blowing the smoke completely; step five, grinding the pulp; sixth step, slurry mixing and oil stirring: and (3) adding hot water into the ground slurry oil at a low and uniform speed at one time, and finishing a rapid stirring stage, a medium-speed stirring stage, a low-speed stirring stage and an oscillation oil outlet stage through the stirring action of a stirring paddle. The method is used for preparing the ground sesame seed oil by a water-substituted method.
Description
Technical Field
The invention relates to a method for water-blended oil discharging process of ground sesame seed oil by a water substitution method.
Background
Sesame is one of the main oil crops in China, the oil content of seeds is about 53 percent generally, and the oil content of some seeds can reach more than 60 percent, so the sesame has long cultivation history, wide application, rich nutrient components and high medical and nutritional health-care values. The sesame oil extracted from sesame is rich in various amino acids required by human beings, such as oleic acid, linoleic acid, palmitic acid, stearic acid and the like, has high content of unsaturated fatty acid, and has good effect of reducing serum cholesterol. Furthermore, the sesame oil also contains various components with biological activity, such as sesamin, sesamolin, sesamol and other small amount of natural antioxidants, and the sesame oil has better antioxidant stability and longer storage period due to the existence of the components.
The preparation method of the sesame oil mainly comprises the following steps: squeezing, extraction, water substitution, and pre-squeezing. The method has long history and is a method invented by the people working in China in long-term practice, and the ground sesame seed oil has strong and unique fragrance and lasting fragrance, so that the ground sesame seed oil is deeply loved by the people in China in the aspects of cold dressing oil and seasoning oil. The main principle of producing sesame oil by water substitution is to separate oil from water by utilizing the difference of affinity of non-oil components in oil to oil and water and the difference of specific gravity of oil and water. The main process for producing the ground sesame seed oil by the water substitution method comprises the following steps: raw material screening → rinsing → frying → smoke blowing → jordaning → mixing and stirring oil → shaking oil separation → precipitation and filtration → ground sesame seed oil. Different from the oil preparation process by a squeezing method and a leaching method, the method has the advantages that the prepared oil has strong fragrance, simple process equipment, flexible production scale, small investment, convenient small-size dispersion, flexible operation, no organic solvent residue, green production mode, and good oil quality because some trace heavy metal elements in the sesame are precipitated in the sesame dregs by a water substitution method; but the disadvantages of dispersed processing, low labor productivity, high moisture content of the sesame dregs in oil production, easy deterioration and mildewing of the sesame dregs, high residual oil rate of the sesame dregs, high labor intensity of workers, long-time standing of crude oil, intermittent production, difficult large-scale production and restriction on industrial development. Especially, manual stirring assistance is needed in the slurry blending and oil stirring stage, the stirring time is long, the water adding amount needs to be controlled empirically, and the oil needs to be separated in a vibrating manner after oil is extracted through stirring, so that the working power mode needs to be switched, the oil temperature is reduced in the vibrating and oil separating stage, and the oil outlet time is prolonged.
Disclosure of Invention
The invention aims to provide a mechanized production method with industrial implementation prospect, and a water-substituted ground sesame seed oil-blending and oil-discharging process method which reduces the labor intensity of workers.
The above purpose is realized by the following technical scheme:
a method for producing ground sesame seed oil by adding water into water comprises six steps, the first step is raw material screening: removing impurities in the sesame such as soil, gravel, scrap iron, weed seeds and immature sesame grains by using a vibrating sieving machine to obtain qualified sesame raw materials; rinsing the raw materials in the second step: rinsing the qualified sesame seeds by an automatic washing machine, removing the adhering impurities in the sesame seeds, soaking the sesame seeds in water for 60-120 minutes to ensure that the sesame seeds uniformly eat water thoroughly and drain, and frying: frying the sesame seeds for 15 to 25 minutes by using an automatic stir-frying pan with strong fire, wherein the appearance of the sesame seeds is swelled, and then frying the sesame seeds with slow fire, so that the sesame seeds are cooked uniformly under the condition of continuously stirring; after the sesame seeds are fried to be cooked, pouring cold water with the seed frying amount of about 1-5% into the pot, frying for 1 minute, and taking the sesame seeds out of the pot after the sesame seeds are smoked; fourthly, raising smoke and blowing clean: the heat of the sesame discharged from the pot is dissipated, the temperature is reduced, and smoke, coke powder and broken peel are removed; and step five, grinding: grinding the fried and crisp-blown sesame into pulp by a stone mill or a carborundum wheel refiner; sixth step, slurry mixing and oil stirring: placing the ground slurry into an oil extraction container, wherein a heat-insulating interlayer is arranged on the periphery of the oil extraction container, and the temperature of the oil extraction container can be controlled within a certain temperature range in a steam or water bath or oil bath mode; and (3) adding hot water accounting for 80-90% of the total weight of the oil slurry uniformly at a low speed, and finishing a rapid stirring stage, a medium-speed stirring stage, a low-speed stirring stage and an oscillation oil outlet stage by the stirring action of the double-layer stirring paddle.
A method of process of producing oil is mixed to water to ground sesame seed oil of water generation method, the configuration mode of the double-deck stirring rake of sixth step, lower floor's stirring rake is axial-flow type stirring rake, upper stirring rake is radial-flow type stirring rake, under the mutually supporting of double-deck stirring rake, lower floor's stirring rake stirs the slurry oil of lower part, the stirring rake on upper strata is responsible for making slurry oil and water fully mix in the first half, start mechanical stirring rake and begin the stirring, go in adding the slurry oil with the mode at the uniform velocity and slow speed gradually with hot water, the stirring process after adding into water divide into four stages: the first stage is a rapid stirring stage, the added water and the oil slurry are required to be uniformly mixed in the first stage, under the condition of high rotating speed, the added water is sufficiently and rapidly mixed with the oil slurry through the matching of axial flow and runoff, and after the water is added, the viscosity change of a system formed by the whole oil slurry and the water is relatively uniform; the second stage is a medium-speed stirring stage: reduce certain stirring speed, this stage further makes water and the abundant mixing of slurry oil, and the emulsification phenomenon that reduces speed between water and the oil takes place, and the third stage is the slow speed stirring stage: this stage is the oil-out stage, through the rapid mixing process of earlier stage, the oil slurry is the abundant mixing with water, and the oil that water contained in with the oil slurry is fully replaced out, and this stage stirring speed and intensity further reduce, and the thick liquid sediment that has adsorbed moisture begins layering gradually with the oil that is replaced out by water, and oil constantly assembles the come-up, and the thick liquid sediment constantly sinks, and the oil reservoir goes up to upper portion, and the thick liquid sediment sinks to the lower part, fourth stage: and in the oscillation oil outlet stage, the rotating speed in the stage is further reduced, the whole system is in an oscillation state under the driving of the stirring paddle, so that oil droplets wrapped on the slurry slag gradually float upwards and are gathered in an upper oil layer in the fourth stage, and the state of optimal oil outlet rate is achieved.
The method for the water-adding process of the ground sesame seed oil and the water-adding oil-discharging process comprises the following steps of preparing a stirring paddle in a double-layer paddle mode: the upper layer of blades are in a runoff form, straight blade blades or straight blade disc turbine type or three-blade rear lifting type radial flow type stirring blades are selected, the stirred slurry is in a runoff state in the stirring process, the lower layer of blades are in an axial flow form, a push type or spiral belt type or screw rod type or anchor type or frame type or flap blade turbine type axial flow type stirring blade is selected, and the slurry at the lower part is stirred to the upper part in the stirring process, so that the slurry at the lower part is fully and uniformly mixed; the size of the paddle is in a certain proportion to the size of the container, and the position of the double-layer paddle is determined according to the volume of the container.
The method for the water-adding process of the ground sesame seed oil and the water-mixing oil-discharging process comprises a sixth step of adding water, wherein hot water with the temperature of 50-100C 100 ︒ C is added into oil slurry, the water is added in a constant and slow speed mode through a pipeline, the hot water is added in a certain time through a hot water pipeline according to the amount of the added water, the oil slurry and the water are fully mixed, the viscosity of the oil slurry is changed uniformly, the whole process cannot influence the rotation of a stirring paddle, and the phenomenon that the stirring paddle stops due to the fact that the viscosity is increased rapidly due to the fact that the water is added too fast is prevented.
The upper layer paddle is one of a straight-blade paddle type, a straight-blade disc turbine type and a three-blade rear lifting type, and the lower layer paddle is one of a propelling type, a helical belt type, a screw rod type, an anchor type, a frame type and a hinge turbine type.
The method for the water-adding process of the ground sesame seed oil and the water-adding oil-discharging process comprises the following steps: container diameter =0.5:1-0.9: 1; the lower layer of paddles are arranged in the space between the bottom 1/4 and the bottom 1/3 of the container, and the upper layer of paddles are arranged in the space between the upper part 1/3 and the upper part 1/2 of the container; the temperature of the hot water is 50-100 ℃.
In the method for the water-adding process for producing the ground sesame seed oil by water substitution, the water to be added is added at a constant speed within 1-10 min.
The method for the process of mixing the ground sesame seed oil with water and discharging the oil comprises the steps of controlling the rotating speed of a stirring rod in the first stage of the sixth step at 100-300r/min, and controlling the stirring time at 20-40 min; the rotating speed of the stirring rod in the second stage is controlled at 50-100r/min, and the stirring time is controlled at 20-60 min; the rotating speed of the third stage is controlled at 20-50r/min, and the stirring time is controlled at 30-60 min; the rotation speed of the fourth stage is controlled within 15r/min, and the stirring time is controlled within 20-40 min.
In the method for the process of mixing the ground sesame seed oil with water and discharging the oil by the water substitution method, the temperature of the container is controlled to be 40-80 ℃ by the heat-insulating interlayer in the whole stirring process.
Advantageous effects
1. The mechanized production method with the industrial implementation prospect reduces the labor intensity of workers, can stir the oil at one time to reduce the operation of shaking the oil, does not need manual stirring assistance, has relatively short stirring time and improves the production efficiency.
According to the invention, the stirring paddle with double layers of paddles is adopted, water and oil slurry are mixed more uniformly in the slurry blending and oil stirring processes, the stirring power is increased, the phenomenon that the rotation of the stirring rod is influenced by the increase of the viscosity of a system in the water blending process is reduced, meanwhile, the upper layer of paddles are in a runoff form, the lower layer of paddles are in an axial flow form, the oil is replaced by the water more thoroughly in the later oil blending and oil shaking stages, and the residual oil rate is lower.
The invention changes the mode of adding water, fully and uniformly mixes water and slurry oil by controlling the flow rate and the adding time of the added water, reduces the occurrence of the viscosity mutation phenomenon of the system, is easier for mechanized stirring, reduces the manual auxiliary stirring, reduces the labor intensity of workers, and is more beneficial to mechanized production.
According to the invention, the whole stirring process is divided into four stages, so that the oil yield is improved, the single vibration oil separation process in the traditional water-driven oil preparation process can be reduced, and the whole oil production use time is shortened.
Detailed Description
Example 1
A method for producing ground sesame seed oil by adding water into water comprises six steps, the first step is raw material screening: removing impurities in the sesame such as soil, gravel, scrap iron, weed seeds and immature sesame grains by using a vibrating sieving machine to obtain qualified sesame raw materials; rinsing the raw materials in the second step: rinsing the qualified sesame seeds by an automatic washing machine, removing adhering impurities such as side mud, dust and the like in the sesame seeds, soaking the sesame seeds in water for 60-120 minutes to ensure that the sesame seeds are uniformly and thoroughly eaten and drained, and frying in a third step: frying the sesame seeds for 15 to 25 minutes by using an automatic stir-frying pan with strong fire, wherein the appearance of the sesame seeds is swelled, and then frying the sesame seeds with slow fire, so that the sesame seeds are cooked uniformly under the condition of continuously stirring; after the sesame seeds are fried to be cooked, pouring cold water with the seed frying amount of about 1-5% into the pot, frying for about 1 minute, and taking the sesame seeds out of the pot after the sesame seeds are smoked; fourthly, raising smoke and blowing clean: immediately radiating heat of the sesame discharged from the pot, reducing the temperature, and removing smoke dust, coke powder and broken peel; and step five, grinding: grinding the fried and cleaned sesame into pulp by a stone mill or a carborundum wheel refiner, and grinding the sesame into finer and finer sesame; sixth step, slurry mixing and oil stirring: placing the ground slurry into an oil extraction container, wherein the periphery of the oil extraction container is provided with a heat insulation layer, and the temperature of the oil extraction container can be controlled within a certain temperature range in a steam or water bath or oil bath mode; and (3) uniformly adding hot water accounting for 80-90% of the total weight of the oil slurry at a low speed, and finishing a rapid stirring stage, a medium-speed stirring stage, a low-speed stirring stage and an oscillation oil outlet stage by the stirring action of the double-layer stirring paddle.
The configuration mode of double-deck stirring rake, lower floor's stirring rake are axial-flow type stirring rake, and upper stirring rake is runoff formula stirring rake, and under the mutually supporting of double-deck stirring rake, lower floor's stirring rake stirs the slurry oil of lower part, and the stirring rake on upper strata is responsible for making the slurry oil and the abundant mixing of water in the first half, and the mechanical stirring rake that starts stirs is added hot water and is gone in the slurry oil with the mode at the uniform velocity and slow speed gradually, and the stirring process after adding water divide into four stages: the first stage is a rapid stirring stage, the added water and the oil slurry are required to be uniformly mixed in the first stage, under the condition of high rotating speed, the added water is sufficiently and rapidly mixed with the oil slurry through the matching of axial flow and runoff, and after the water is added, the viscosity of a system formed by the whole oil slurry and the water is uniformly changed, so that the rotation of the stirring paddle cannot be influenced; the second stage is a medium-speed stirring stage: reduce certain stirring speed, this stage further makes water and the abundant mixing of slurry oil, and the emulsification phenomenon that reduces speed and can reduce between water and the oil takes place, and the third stage is the slow speed stirring stage: this stage is the oil-out stage, through the rapid mixing process of earlier stage, the oil slurry fully mixes with water, and water can fully replace out with the oil that contains in the oil slurry, and this stage stirring speed and intensity further reduce, and the thick liquid sediment that has adsorbed moisture begins layering gradually with the oil that is replaced out by water, and oil constantly assembles the come-up, and the thick liquid sediment constantly sinks, and the oil reservoir goes up to upper portion, and the thick liquid sediment sinks to the lower part, fourth stage: and in the oscillation oil outlet stage, the rotating speed in the stage is further reduced, the whole system is in an oscillation state under the driving of the stirring paddle, so that oil droplets wrapped on the slurry slag gradually float upwards and are gathered in an upper oil layer in the fourth stage, and the state of optimal oil outlet rate is achieved.
Example 2
The method for the water-blended sesame seed oil production process of the water-substituted method described in example 1, the sixth step of preparing the stirring paddle, the stirring paddle adopts a double-layer paddle form according to our exploration: the upper layer of the paddle is in a runoff form, and a straight blade paddle type or a straight blade disc turbine type or a three-blade rear lifting type equal-runoff stirring paddle can be selected, so that the stirred slurry is in a runoff state in the stirring process, the lower layer of the paddle is in an axial flow form, and a push type or spiral belt type or screw rod type or anchor type or frame type or flap turbine type equal-runoff stirring paddle is selected, so that the slurry at the lower part can be stirred to the upper part in the stirring process, and the slurry at the lower part can be fully and uniformly mixed; the ratio of the size of the paddle to the size of the container is 1:2, and the position of the double-layer paddle is determined according to the volume of the container.
Example 3
The method for water-adding and oil-discharging process of ground sesame seed oil in embodiment 1 includes a sixth step of adding water, in which hot water at a temperature of 50-100C 100 ︒ C is added into the oil slurry in a manner of adding the hot water at a constant speed and a slow speed through a pipeline, and the hot water is added in a certain time through a hot water pipeline according to the amount of the added water, so that the oil slurry and the water are fully mixed by stirring, the viscosity of the oil slurry can be uniformly changed, the rotation of a stirring paddle cannot be influenced in the whole process, and the phenomenon that the stirring paddle stops due to rapid increase of the viscosity caused by rapid addition of the water is prevented.
Example 4
The method for water-blended oil-out process of ground sesame seed oil by water substitution in embodiment 2 includes one of a straight-bladed paddle type, a straight bladed disk turbine type and a three-bladed rear lifting type for the upper paddle, and one of a push type, a helical ribbon type, a screw type, an anchor type, a frame type and a flap turbine type for the lower paddle.
Example 5
The method for the water-blended oil-out process of ground sesame seed oil by the water substitution method in embodiment 2 comprises the following steps: container diameter =0.5:1-0.9: 1; the lower layer of paddles are arranged in the space between the bottom 1/4 and the bottom 1/3 of the container, and the upper layer of paddles are arranged in the space between the upper part 1/3 and the upper part 1/2 of the container; the temperature of the hot water is 50-100 ℃.
Example 6
The method for water-blended sesame seed oil and oil production in the embodiment 2 comprises a second step of adding water to be added at a constant speed for 1-10 min.
Example 7
The method for preparing ground sesame seed oil by the water substitution method in the embodiment 1, wherein the rotating speed of a stirring rod in the first stage of the sixth step is controlled at 100-300r/min, and the stirring time is controlled at 20-40 min; the rotating speed of the stirring rod in the second stage is controlled at 50-100r/min, and the stirring time is controlled at 20-60 min; the rotating speed of the third stage is controlled at 20-50r/min, and the stirring time is controlled at 30-60 min; the rotation speed of the fourth stage is controlled within 15r/min, and the stirring time is controlled within 20-40 min.
Example 8
In the method for the water-blended sesame seed oil and sesame oil production process in example 7, the temperature of the container is controlled to be 40-80 ℃ through the heat-preservation interlayer in the whole stirring process.
Example 9
The method for the process of mixing the ground sesame seed oil with water and discharging the oil in the water substitution method in the embodiment 1 comprises the sixth step of controlling the stirring process, wherein the whole stirring process is divided into four stages; the first stage is a rapid stirring stage: under the condition of a faster rotating speed, the stirring force is higher, the difficulty that the viscosity of an oil slurry system is increased after water is added can be overcome, and the water-oil system is mixed uniformly and quickly. The second stage is a medium-speed stirring stage: the stage can further mix water and oil slurry evenly, the viscosity of the system is reduced, the probability of emulsification after mixing water and oil is reduced, and the third stage is a slow stirring stage: the stage is a stirring oil outlet stage, most of oil in the oil slurry is replaced by water after the water and the oil slurry are fully mixed, the oil gradually floats upwards to form an oil layer, the water replaces the oil and forms slurry slag with the rest non-oil substances to gradually sink to the bottom, and a double-layer state with the upper part being the oil layer and the lower part being the slurry slag is finally formed through slow stirring in the stage. The fourth stage is an extremely slow vibration oil sloshing stage: the rotating speed of the stirring paddle is further reduced at the stage, and under the condition of the rotating speed, the whole system is in a state of shaking oil. The residual oil drops in the slurry residue can be continuously converged to form large oil drops to float upwards in the state, the residual oil is replaced, and finally a better oil extraction effect is achieved, and the whole stirring process needs to be maintained at a fixed temperature.
Example 10
The method for the water-blended oil-discharging process of ground sesame seed oil by the water substitution method in the embodiment 1 comprises six steps, namely, screening of raw materials in the first step: removing impurities in the sesame such as soil, gravel, scrap iron, weed seeds and immature sesame grains by using a vibrating sieving machine to obtain qualified sesame raw materials; rinsing the raw materials in the second step: rinsing the qualified sesame seeds by an automatic washing machine, removing adhering impurities such as side mud, dust and the like in the sesame seeds, soaking the sesame seeds in water for 60-120 minutes to ensure that the sesame seeds are uniformly and thoroughly eaten and drained, and frying in a third step: frying the sesame seeds for 20 minutes by using an automatic stir-frying pan with strong fire, changing the appearance of the sesame seeds to be plump, frying the sesame seeds with slow fire, and uniformly cooking the sesame seeds under the condition of continuously stirring; after the sesame seeds are fried to be cooked, pouring cold water with the seed frying amount of about 3% into the pot, frying for about 1 minute, and taking the sesame seeds out of the pot after the sesame seeds are smoked; fourthly, raising smoke and blowing clean: immediately radiating heat of the sesame discharged from the pot, reducing the temperature, and removing smoke dust, coke powder and broken peel; and step five, grinding: grinding the fried and cleaned sesame into pulp by a stone mill or a carborundum wheel refiner, and grinding the sesame into finer and finer sesame; sixth step, slurry mixing and oil stirring: placing the ground slurry into an oil extraction container, wherein the periphery of the oil extraction container is provided with a heat insulation layer, and the temperature of the oil extraction container can be controlled within a certain temperature range in a steam or water bath or oil bath mode; and (3) adding hot water accounting for 80-90% of the total weight of the oil slurry uniformly at a low speed, and finishing a rapid stirring stage, a medium-speed stirring stage, a low-speed stirring stage and an oscillation oil outlet stage by the stirring action of the double-layer stirring paddle.
Example 11
The method for the water-blended oil-discharging process of ground sesame seed oil by the water substitution method in the embodiment 1 comprises six steps, namely, screening of raw materials in the first step: removing impurities in the sesame such as soil, gravel, scrap iron, weed seeds and immature sesame grains by using a vibrating sieving machine to obtain qualified sesame raw materials; rinsing the raw materials in the second step: rinsing the qualified sesame seeds by an automatic washing machine, removing adhesive impurities in the sesame seeds such as mud, dust and the like, soaking the sesame seeds in water for 60 minutes to ensure that the sesame seeds uniformly and thoroughly eat water and drain, and frying in a third step: the automatic stir-frying pan is used, big fire is used for frying till 15 minutes, the appearance of the sesame is swelled, and slow fire is used for frying, so that the sesame is cooked uniformly under the condition of continuously stirring; after the sesame seeds are fried to be cooked, pouring cold water with the seed frying amount of about 1% into the pot, frying for about 1 minute, and taking the sesame seeds out of the pot after the sesame seeds are smoked; fourthly, raising smoke and blowing clean: immediately radiating heat of the sesame discharged from the pot, reducing the temperature, and removing smoke dust, coke powder and broken peel; and step five, grinding: grinding the fried and cleaned sesame into pulp by a stone mill or a carborundum wheel refiner, and grinding the sesame into finer and finer sesame; sixth step, slurry mixing and oil stirring: placing the ground slurry into an oil extraction container, wherein the periphery of the oil extraction container is provided with a heat insulation layer, and the temperature of the oil extraction container can be controlled within a certain temperature range in a steam or water bath or oil bath mode; and (3) adding hot water accounting for 80-90% of the total weight of the oil slurry uniformly at a low speed, and finishing a rapid stirring stage, a medium-speed stirring stage, a low-speed stirring stage and an oscillation oil outlet stage by the stirring action of the double-layer stirring paddle.
Example 12
The method for the water-blended oil-discharging process of ground sesame seed oil by the water substitution method in the embodiment 1 comprises six steps, namely, screening of raw materials in the first step: removing impurities in the sesame such as soil, gravel, scrap iron, weed seeds and immature sesame grains by using a vibrating sieving machine to obtain qualified sesame raw materials; rinsing the raw materials in the second step: rinsing the qualified sesame seeds by an automatic washing machine, removing adhesive impurities in the sesame seeds such as mud, dust and the like, soaking the sesame seeds in water for 120 minutes to ensure that the sesame seeds uniformly and thoroughly eat water and drain, and frying in a third step: frying the sesame seeds for 25 minutes by using an automatic stir-frying pan with strong fire, changing the sesame seeds to be fried with slow fire, and uniformly cooking the sesame seeds under the condition of continuously stirring; after the sesame seeds are fried to be cooked, pouring cold water with the seed frying amount of about 5% into the pot, frying for about 1 minute, and taking the sesame seeds out of the pot after the sesame seeds are smoked; fourthly, raising smoke and blowing clean: immediately radiating heat of the sesame discharged from the pot, reducing the temperature, and removing smoke dust, coke powder and broken peel; and step five, grinding: grinding the fried and cleaned sesame into pulp by a stone mill or a carborundum wheel refiner, and grinding the sesame into finer and finer sesame; sixth step, slurry mixing and oil stirring: placing the ground slurry into an oil extraction container, wherein the periphery of the oil extraction container is provided with a heat insulation layer, and the temperature of the oil extraction container can be controlled within a certain temperature range in a steam or water bath or oil bath mode; and (3) adding hot water accounting for 80-90% of the total weight of the oil slurry uniformly at a low speed, and finishing a rapid stirring stage, a medium-speed stirring stage, a low-speed stirring stage and an oscillation oil outlet stage by the stirring action of the double-layer stirring paddle.
Example 13
The method for the water-blended oil-out process of ground sesame seed oil by the water substitution method in example 6 is characterized in that the upper layer of the ground sesame seed oil has a spread size: vessel diameter =0.5: 1; the lower layer of paddles are arranged in the space of the bottom 1/4 of the vessel, and the upper layer of paddles are arranged in the space of the upper part 1/3 of the vessel; the temperature of the hot water is 50 ℃.
Example 14
The method for the water-blended oil-out process of ground sesame seed oil by the water substitution method in example 5 is characterized in that the upper layer of the paddle leaf is as follows: vessel diameter =0.9: 1; the lower layer of paddles are arranged in the space of the bottom 1/3 of the vessel, and the upper layer of paddles are arranged in the space of the upper part 1/2 of the vessel; the temperature of the hot water is 100 ℃.
Example 15
The method for water-blended sesame seed oil and oil production in the water substitution method in example 6, wherein the water to be added is added at a constant speed within 1min in the second step.
Example 16
The method for water-blended sesame seed oil and oil production in the water substitution method in example 6, wherein the water to be added is added at a constant speed within 10min in the second step.
Example 17
The method for the water-blended sesame seed oil and oil discharging process in the water-substituted method in embodiment 7, wherein the rotating speed of the stirring rod in the first stage of the sixth step is controlled at 100r/min, and the stirring time is controlled at 20 min; the rotating speed of the stirring rod in the second stage is controlled at 50r/min, and the stirring time is controlled at 20 min; the rotating speed of the third stage is controlled at 20r/min, and the stirring time is controlled at 30 min; the rotation speed of the fourth stage is controlled within 15r/min, and the stirring time is controlled within 20 min.
Example 18
The method for the water-blended sesame seed oil and oil discharging process in the water-substituted method in embodiment 7, wherein the rotating speed of the stirring rod in the first stage of the sixth step is controlled at 300r/min, and the stirring time is controlled at 40 min; the rotating speed of the stirring rod in the second stage is controlled at 100r/min, and the stirring time is controlled at 60 min; the rotating speed of the third stage is controlled at 50r/min, and the stirring time is controlled at 60 min; the rotation speed of the fourth stage is controlled within 15r/min, and the stirring time is controlled within 40 min.
Example 19
The method for adding water into ground sesame seed oil and discharging oil by using water substitution method in the embodiment comprises the steps of adding 400g of oil slurry obtained by screening, rinsing, frying, raising smoke and blowing and grinding the previous raw materials into a 1000ml beaker, setting the water bath temperature to be 40 ℃, setting up a stirring platform, selecting an upper stirring paddle to be a straight paddle type, a lower stirring paddle to be a pushing type, wherein the paddle span size is 0.5 of the diameter of a container, the upper paddle is positioned at 1/3 on the upper part of the container, the lower paddle is positioned at 1/3 on the lower part of the container, starting mechanical stirring to start stirring, increasing the rotating speed to 100r/min, starting to add 350ml of 50 ℃ hot water, controlling the adding speed, completely adding all water in 1 minute under the condition of uniform speed, stirring for 20 minutes, reducing the rotating speed to 50r/min, and continuing stirring for 20 minutes, and reducing the rotating speed to 20r/min, continuously stirring for 30min, then floating a large amount of oil, finally controlling the rotating speed to be 5r/min, continuously stirring for 20min, and taking oil once after stirring is finished, wherein the oil taking rate is measured to be 51.3%.
Example 20
The method for adding water into ground sesame seed oil and discharging oil by using water substitution method in the embodiment comprises the steps of adding 500g of oil slurry obtained by screening, rinsing, frying, raising smoke and blowing and grinding the raw materials in the previous stage into a 2000ml beaker, setting the water bath temperature to be 60 ℃, building a stirring platform, selecting an upper layer stirring blade to be a straight blade disc turbine type, a lower layer stirring blade to be an anchor type, wherein the blade span size of the upper layer stirring blade is 0.9 of the diameter of a container, the position of the upper layer stirring blade is located at 1/3 of the upper part of the container, the position of the lower layer stirring blade is located at 1/4 of the lower part of the container, starting mechanical stirring to start stirring, increasing the rotating speed to 160r/min, starting to add 420ml of 70 ℃ hot water, controlling the adding speed, completely adding all water under the condition of uniform speed for 4 minutes, stirring for 30 minutes, reducing the rotating speed to 80r/min, and (3) continuing stirring for 40min, reducing the rotating speed to 30r/min, continuing stirring for 40min, enabling a large amount of oil to float upwards, controlling the rotating speed to 10r/min, continuing stirring for 30min, and taking oil once after stirring is finished, wherein the oil taking rate is measured to be 50.1%.
Example 21
The method for adding water into ground sesame seed oil and discharging oil by using water substitution method in the embodiment comprises the steps of adding 450g of oil slurry obtained by screening, rinsing, frying, raising smoke and blowing and grinding the raw materials in the previous stage into a 2000ml beaker, controlling the water bath temperature to be 80 ℃, building a stirring platform, enabling the blade span of a blade to be 0.8 of the diameter of a container, enabling the upper layer blade to be located at 1/2 on the upper part of the container, enabling the lower layer blade to be located at 1/4 on the lower part of the container, selecting the upper layer stirring blade to be of a three-blade type and raising the stirring blade, enabling the lower layer stirring blade to be of a frame type, starting mechanical stirring to start stirring, increasing the rotating speed to 200r/min, starting to add 400ml of 85 ℃ hot water, controlling the adding speed, completely adding all water in 6 minutes under the condition of uniform speed, keeping the stirring time to be 40 minutes, reducing the rotating speed to 90r/min, and continuing to stir for 50, and reducing the rotating speed to 40r/min, continuously stirring for 50min, then floating a large amount of oil, finally controlling the rotating speed at 15r/min, continuously stirring for 40min, and taking oil once after stirring is finished, wherein the oil taking rate is measured to be 51.8%.
Example 22
The method for adding water into ground sesame seed oil and discharging oil by using water substitution method in the embodiment comprises the steps of adding 1000g of oil slurry obtained by screening, rinsing, frying, raising smoke and blowing and grinding the previous raw materials into a 2000ml beaker, setting the water bath temperature to be 70 ℃, setting up a stirring platform, selecting an upper layer stirring paddle to be a straight paddle type, a lower layer stirring paddle to be a spiral ribbon type, wherein the paddle leaf expansion size is 0.9 of the diameter of a container, the upper layer paddle position is located at 1/3 of the upper part of the container, the lower layer paddle position is located at 1/4 of the lower part of the container, starting mechanical stirring to start stirring, increasing the rotating speed to 300r/min, starting to add 850ml of 90 ℃ hot water, controlling the adding speed, completely adding all water under the condition of uniform speed for 10 minutes, stirring for 40 minutes, reducing the rotating speed to 100r/min, and continuing stirring for 60 minutes, and reducing the rotating speed to 50r/min, continuously stirring for 1h, then floating a large amount of oil, finally controlling the rotating speed at 15r/min, continuously stirring for 40min, and taking oil once after stirring is finished, wherein the oil taking rate is measured to be 52.5%.
The oil extraction rate is calculated in the following way: oil pick-up = mass of crude oil taken/mass of raw slurry oil 100%.
Example 23
In the method for the water-adding oil-discharging process of the ground sesame seed oil by the water substitution method in the embodiment, the stirring process of adding the slurry and stirring the oil is kept at the temperature of 40-80 ℃ by externally introducing water vapor or a water bath or an oil bath.
In the slurry mixing and oil stirring stage, hot water with a certain temperature is added in a slow speed mode by controlling the speed, and under the stirring of a stirring paddle with double-layer stirring blades, a better stirring oil outlet mode is finally achieved through the stirring in four stages. Through the optimization of these modes, the process of manual auxiliary stirring is reduced in the whole slurry mixing and oil stirring stage, the labor intensity of workers is reduced, the degree of mechanization can be further improved, the process of shaking oil by independent oscillation is reduced, the time is saved, the whole slurry mixing and oil stirring process can be accurately and automatically controlled, the time can be saved, the production cost is reduced, and the industrial application prospect is better.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (9)
1. A method for producing ground sesame seed oil by adding water into water by a water substitution method is characterized by comprising six steps of raw material screening: removing impurities in the sesame such as soil, gravel, scrap iron, weed seeds and immature sesame grains by using a vibrating sieving machine to obtain qualified sesame raw materials; rinsing the raw materials in the second step: rinsing the qualified sesame seeds by an automatic washing machine, removing the adhering impurities in the sesame seeds, soaking the sesame seeds in water for 60-120 minutes to ensure that the sesame seeds uniformly eat water thoroughly and drain, and frying: frying the sesame seeds for 15 to 25 minutes by using an automatic stir-frying pan with strong fire, wherein the appearance of the sesame seeds is swelled, and then frying the sesame seeds with slow fire, so that the sesame seeds are cooked uniformly under the condition of continuously stirring; after the sesame seeds are fried to be cooked, pouring cold water with the seed frying amount of about 1-5% into the pot, frying for 1 minute, and taking the sesame seeds out of the pot after the sesame seeds are smoked; fourthly, raising smoke and blowing clean: the heat of the sesame discharged from the pot is dissipated, the temperature is reduced, and smoke, coke powder and broken peel are removed; and step five, grinding: grinding the fried and crisp-blown sesame into pulp by a stone mill or a carborundum wheel refiner; sixth step, slurry mixing and oil stirring: placing the ground slurry into an oil extraction container, wherein a heat-insulating interlayer is arranged on the periphery of the oil extraction container, and the temperature of the oil extraction container can be controlled within a certain temperature range in a steam or water bath or oil bath mode; and (3) adding hot water accounting for 80-90% of the total weight of the oil slurry uniformly at a low speed, and finishing a rapid stirring stage, a medium-speed stirring stage, a low-speed stirring stage and an oscillation oil outlet stage by the stirring action of the double-layer stirring paddle.
2. The method for water-blended sesame seed oil and oil discharge according to claim 1, wherein the sixth step is performed by using a double-layer stirring paddle, wherein the lower layer stirring paddle is an axial-flow stirring paddle, the upper layer stirring paddle is a radial-flow stirring paddle, the lower layer stirring paddle stirs the lower oil slurry under the mutual cooperation of the double-layer stirring paddles, the upper layer stirring paddle is responsible for fully mixing the oil slurry and water in the upper half part, the mechanical stirring paddle is started to start stirring, hot water is gradually added into the oil slurry in a uniform speed and slow speed manner, and the stirring process after the water is added is divided into four stages: the first stage is a rapid stirring stage, the added water and the oil slurry are required to be uniformly mixed in the first stage, under the condition of high rotating speed, the added water is sufficiently and rapidly mixed with the oil slurry through the matching of axial flow and runoff, and after the water is added, the viscosity change of a system formed by the whole oil slurry and the water is relatively uniform; the second stage is a medium-speed stirring stage: reduce certain stirring speed, this stage further makes water and the abundant mixing of slurry oil, and the emulsification phenomenon that reduces speed between water and the oil takes place, and the third stage is the slow speed stirring stage: this stage is the oil-out stage, through the rapid mixing process of earlier stage, the oil slurry is the abundant mixing with water, and the oil that water contained in with the oil slurry is fully replaced out, and this stage stirring speed and intensity further reduce, and the thick liquid sediment that has adsorbed moisture begins layering gradually with the oil that is replaced out by water, and oil constantly assembles the come-up, and the thick liquid sediment constantly sinks, and the oil reservoir goes up to upper portion, and the thick liquid sediment sinks to the lower part, fourth stage: and in the oscillation oil outlet stage, the rotating speed in the stage is further reduced, the whole system is in an oscillation state under the driving of the stirring paddle, so that oil droplets wrapped on the slurry slag gradually float upwards and are gathered in an upper oil layer in the fourth stage, and the state of optimal oil outlet rate is achieved.
3. The method for water-blended sesame seed oil extraction process in accordance with claim 2, wherein the sixth step of the preparation of the stirring paddle is carried out in the form of a double-layer paddle: the upper layer of blades are in a runoff form, straight blade blades or straight blade disc turbine type or three-blade rear lifting type radial flow type stirring blades are selected, the stirred slurry is in a runoff state in the stirring process, the lower layer of blades are in an axial flow form, a push type or spiral belt type or screw rod type or anchor type or frame type or flap blade turbine type axial flow type stirring blade is selected, and the slurry at the lower part is stirred to the upper part in the stirring process, so that the slurry at the lower part is fully and uniformly mixed; the size of the paddle is in a certain proportion to the size of the container, and the position of the double-layer paddle is determined according to the volume of the container.
4. The method for adding water and discharging the oil of the ground sesame seed oil according to claim 2, wherein the sixth step is a water adding mode, hot water with the temperature of 50-100C 100 ︒ C is added into the oil slurry, the adding mode is that the hot water is added at a constant speed and a slow speed through a pipeline, the oil slurry and the water are fully mixed through a hot water pipeline according to the amount of the added water, so that the viscosity of the oil slurry is changed uniformly, the whole process cannot influence the rotation of the stirring paddle, and the phenomenon that the stirring paddle stops due to the rapid increase of the viscosity caused by the rapid addition of the water is prevented.
5. The method for blending water with ground sesame seed oil and discharging oil according to claim 3, wherein the upper paddle is one of a straight paddle type, a straight paddle disk turbine type and a three-blade rear lifting type, and the lower paddle is one of a propelling type, a helical belt type, a screw type, an anchor type, a frame type and a folding blade turbine type.
6. The method for the water-blended oil-discharging process of the ground sesame seed oil by the water substitution method according to claim 3, wherein the upper layer of the paddle leaf is as large as the leaf span: container diameter =0.5:1-0.9: 1; the lower layer of paddles are arranged in the space between the bottom 1/4 and the bottom 1/3 of the container, and the upper layer of paddles are arranged in the space between the upper part 1/3 and the upper part 1/2 of the container; the temperature of the hot water is 50-100 ℃.
7. The method for adding water into ground sesame seed oil and discharging oil according to claim 3, wherein the water to be added in the second step is added at a constant speed within 1-10 min.
8. The method for the water-blended oil-discharging process of ground sesame seed oil by the water substitution method as claimed in claim 2, wherein the rotation speed of the stirring rod in the first stage of the sixth step is controlled at 100-300r/min, and the stirring time is controlled at 20-40 min; the rotating speed of the stirring rod in the second stage is controlled at 50-100r/min, and the stirring time is controlled at 20-60 min; the rotating speed of the third stage is controlled at 20-50r/min, and the stirring time is controlled at 30-60 min; the rotation speed of the fourth stage is controlled within 15r/min, and the stirring time is controlled within 20-40 min.
9. The method for mixing refined sesame seed oil with water to produce oil as claimed in claim 8, wherein the temperature of the container is controlled to 40-80 ℃ by the heat-insulating interlayer during the whole stirring process.
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