CN113186025A

CN113186025A - Processing method of mellow peanut oil

Info

Publication number: CN113186025A
Application number: CN202110592599.2A
Authority: CN
Inventors: 张洪宁
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-28
Filing date: 2021-05-28
Publication date: 2021-07-30

Abstract

The invention discloses a processing method of mellow peanut oil in the technical field of vegetable oil, which comprises the following steps: the raw materials are firstly cleaned in a workshop to remove impurities, dust, stones, mud and iron, and the peanut kernels are classified according to the size of the follow-up products; feeding the classified material into a peeling workshop to remove dust, peel, sterilize and select color to extract mildewed grains and bad grains; pretreating the peeled qualified raw materials, feeding a part of the peeled qualified raw materials into a mellow-fragrant stir-frying seed line squeezing workshop, and feeding a part of the peeled qualified raw materials into a mellow-fragrant stir-frying seed line squeezing workshop; the crude oil produced by the pressing workshop is conveyed to the filtering and refining workshop through a pump, the production, purchase risk and product sale risk of single raw materials are reduced by taking the peanut kernels as main materials and taking the soybeans, the rapeseeds, the sunflower seed kernels and the sesames as auxiliary materials, and the quality, sanitation and safety of peanut oil production are effectively guaranteed by screening, cleaning and grading the raw materials.

Description

Processing method of mellow peanut oil

Technical Field

The invention relates to the technical field of vegetable oil, in particular to a processing method of mellow peanut oil.

Background

Vegetable oils, which are compounds obtained by reacting higher fatty acids with glycerol, are widely distributed in nature and are oils and fats obtained from fruits, seeds, and germs of plants, such as peanut oil, soybean oil, linseed oil, castor oil, rapeseed oil, and the like. The main component of vegetable oil is ester of straight chain higher fatty acid and glycerol, and the fatty acid contains various unsaturated acids such as erucic acid, eleostearic acid, ricinoleic acid, etc. in addition to palmitic acid, stearic acid and oleic acid. The vegetable oil mainly contains vitamin E, vitamin K, minerals such as calcium, ferrum, phosphorus, potassium, etc., fatty acid, etc. The fatty acid in the vegetable oil can moisten and luster the skin.

The peanut oil is light yellow and transparent, has clear color and luster, fragrant smell and delicious taste, and is edible oil which is easier to digest. The peanut oil contains more than 80 percent of unsaturated fatty acid (41.2 percent of oleic acid and 37.6 percent of linoleic acid). In addition, it also contains saturated fatty acids such as palmitic acid, stearic acid and arachidic acid 19.9%. The fatty acid composition of the peanut oil is better and is easy to digest and absorb by human bodies. According to foreign data, edible peanut oil can decompose cholesterol in human body into bile acid and discharge the bile acid out of human body, thereby reducing the content of cholesterol in blood plasma. In addition, the peanut oil also contains substances which are beneficial to human bodies, such as sterol, wheat germ phenol, phospholipid, vitamin E, choline and the like. By eating peanut oil regularly, the skin is prevented from wrinkling, aging and thrombosis are prevented, and arteriosclerosis and coronary heart disease are prevented. The choline in the peanut oil can also improve the memory of human brain and delay the decline of brain function.

At present, most oil crop oil processing factories in China simply and clearly directly squeeze oil. The quality and the sanitary quality can not be effectively guaranteed, and the raw materials are single, so that the production and acquisition risks and the product sale risks are caused.

Disclosure of Invention

The invention aims to provide a processing method of mellow peanut oil, which aims to solve the problems that most oil crop oil processing factories in China currently put forward in the background art, and oil is directly squeezed to be prepared simply and clearly. The quality and the sanitary quality can not be effectively guaranteed, and the raw materials are single, so that the problems of production, purchase risks and product sale risks are caused.

In order to achieve the purpose, the invention provides the following technical scheme: a processing method of mellow peanut oil comprises the following steps:

s1: the mellow peanut oil is produced by peanut, soybean, rapeseed, sunflower seed and other oil materials with inner coatings, the raw materials are firstly cleaned in a workshop to remove impurities, dust, stone impurities, mud and iron, and the peanut kernels are classified according to the size of subsequent products;

s2: feeding the classified material into a peeling workshop to remove dust, peel, sterilize and select color to extract mildewed grains and bad grains;

s3: pretreating the peeled qualified raw materials, feeding a part of the peeled qualified raw materials into a mellow-fragrant stir-frying seed line squeezing workshop, and feeding a part of the peeled qualified raw materials into a mellow-fragrant stir-frying seed line squeezing workshop;

s4: conveying the crude oil produced in the squeezing workshop to a filtering and refining workshop through a pump, filtering for the second time, and then pumping the crude oil into a finished product tank area for packaging;

s5: leaching and degreasing cakes in a squeezing workshop at a low temperature, and preparing protein from degreased dregs in a protein workshop;

s6: conveying the crude oil leached from the peanut cake to a refining workshop by a pump, and pumping the finished product to a finished product tank area for packaging after appropriate refining.

Preferably, the cleaning workshop comprises the following working steps: for peanut kernels with more impurity content, manually removing bags, feeding the peanut kernels into a discharging pit in a discharging shed, enabling raw materials in the discharging pit to reach a cleaning workshop through a scraper plate, sequentially passing through a metering scale, a cleaning sieve, a stone remover and a grading sieve to obtain large, medium and small peanut kernels, respectively conveying the peanut kernels into corresponding three daily bins through three bucket elevators, and directly feeding the pretreated peanut kernels into the bucket elevators through an elevator to convey the peanut kernels into the corresponding daily bins for subsequent working sections.

Preferably, the peeling workshop comprises the following working steps: the classified materials are conveyed to a low-temperature oven by conveying equipment, the raw materials are discharged from the low-temperature oven and enter a half-pellet mill for crushing, the crushed raw materials enter a peel and kernel separator, the peeled raw materials enter a color selector for color selection of bad grains, mildewed grains and grains with peel, and finished products obtained by color selection are stored in a temporary storage bin for a pressing workshop.

Preferably, the press shop working steps are as follows: the peanut kernels after being cleaned, stone removed, peeled and color selected are conveyed to a metering scale for metering by a temporary storage bin through a scraper conveyor and a bucket elevator, the metered peanut kernels are distributed to a crusher through the scraper conveyor, the crushed peanut kernels are distributed to a blank rolling machine through the scraper conveyor and the bucket elevator for rolling, rolled blank pieces are conveyed into a steaming and frying pan through the scraper conveyor and the bucket elevator for steaming and frying, cooked blank pieces after steaming and frying are conveyed into an oil press through the bucket elevator, a magnetic separator and the scraper conveyor for squeezing, squeezed cakes are conveyed to a cake cooling machine through the scraper conveyor and the bucket elevator for cooling, the cooled peanut cakes are conveyed to a packing workshop through the scraper conveyor, the elevator and the scraper conveyor, crude oil squeezed out by a squeezer firstly flows into a scraper loader to separate oil and slag, the oil flows into a clarifying oil tank to further separate the oil and the slag, and the crude oil separated from the clarifying oil tank is conveyed to the refining workshop through an oil pump.

Preferably, the working steps of the refining plant are as follows: and conveying the crude oil squeezed in the squeezing workshop to a crystallizing tank of a refining workshop through a pump for crystallization, cooling the crude oil at 60-80 ℃, introducing chilled water to reduce the temperature to 18-24 Nie's degree, starting first filtering, conveying the crude oil from the crystallizing tank to a filter press by using the pump for degumming and impurity separation, performing second filtering, filtering by using filter paper for the second time, and detecting the crude oil to be qualified and reach a finished product tank for packaging.

Compared with the prior art, the invention has the beneficial effects that: according to the peanut oil production method, the peanut kernels are used as the main material, the soybeans, the rapeseeds, the sunflower seed kernels and the sesame seeds are used as the auxiliary materials, the production and purchase risks and the product sale risks of a single raw material are reduced, and the raw materials are screened, cleaned and graded, so that the quality, sanitation and safety of peanut oil production are effectively guaranteed.

Drawings

FIG. 1 is a block diagram schematically illustrating the structure of the present invention;

FIG. 2 is a schematic block diagram of a process flow of the present invention;

FIG. 3 is a schematic block diagram of a cleaning shop workflow of the present invention;

FIG. 4 is a schematic block diagram of the work flow of the peeling workshop of the present invention;

FIG. 5 is a schematic block diagram of a press shop workflow of the present invention;

FIG. 6 is a schematic block diagram of a refinery plant workflow of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides a processing method of mellow peanut oil,

the processing method of the mellow peanut oil comprises the following steps:

Example 1

The processing method of the mellow peanut oil comprises the following steps:

s1: the raw materials are firstly cleaned in a workshop to remove impurities, dust, stone impurities, mud and iron, the peanut kernels are classified according to the size of subsequent products, a cleaning sieve is provided with a plurality of sieve surfaces and used for cleaning the raw materials of peanuts, rapeseeds, soybeans, sunflower seeds and sesame, for the raw materials of the peanut kernels, the cleaning workshop mainly aims to remove the impurities, the dust, the stone impurities, the mud and the iron, and the peanut kernels are classified according to the size of the subsequent products, the impurities generated in the process are collected and processed through an air net system, the raw materials put into a feeding pit comprise the raw materials on a truck which are directly purchased and the raw materials in a warehouse, for the raw materials in the warehouse, the raw materials are tested and warehoused by related tests, and during production, the materials in the warehouse are mainly conveyed into a discharge shed through a forklift to be fed, for raw materials on a truck, after relevant quality is determined by laboratory personnel in a factory, the truck is stopped in an unloading shed and is directly fed by the unloading personnel and feeding personnel, for common peanut kernels (namely peanut kernels with large impurity content), in general, a bag is manually unpacked in the unloading shed and is fed into a discharging pit, an air suction cover is arranged at the upper part of a discharging hopper and is used for removing dust in the unloading process, the working environment of operators in the unloading shed is ensured, meanwhile, the working load of a dust removal system in a cleaning workshop is lightened, whether the dust removal system in the unloading shed is started or not can be determined according to the dust content of the raw materials in the actual operation process, the raw materials in the discharging pit reach the cleaning workshop through a scraper plate, sequentially pass through a metering scale, a cleaning sieve, a stone remover and a grading sieve to obtain large, medium and small peanut kernels, and the three peanut kernels are respectively lifted into corresponding three day bins by three hopper machines, the operation of the workshop section is completed, two-stage dust removal systems are respectively arranged on a cleaning sieve and a stone remover in a cleaning workshop, the dust removal systems are separated from the main operation space of equipment, the noise in the operation environment is reduced, a good operation environment is created for operators, a high-low material level alarm device is arranged in a buffer hopper at the upper part of a metering scale, the operators know the discharge speed of a feeding person according to the material level to control the normal operation of production, an electric gate is arranged on a chute at the outlet of the metering scale to adjust the consumption condition of the downstream equipment on the material, for high-quality peanut kernels (namely large-grain peanut kernels which are directly pressed after being cleaned), the materials are directly fed into a hopper elevator through an elevator and are conveyed into a corresponding day bin for the subsequent workshop section to use, the cleaning workshop is compatible with the cleaning work of the peanut kernels, the vegetable seeds, the soybeans and the sunflower seeds, the production of peanut kernels and the cleaning of soybeans, rapeseeds and sunflower seeds are carried out according to the seasons of raw materials, the utilization rate of equipment is increased, the technology invents a fast cutting technology because more raw materials are processed, the material change is completed in 30 minutes, no material is wasted, the cost is not increased, and the technology is also suitable for a single raw material production line;

s2: the classified material is fed into a peeling workshop to remove dust, peel, sterilize and color select the raw material to extract mildew grains and bad grains, main equipment of the workshop comprises a low-temperature oven, a half-grain machine, a peel and kernel separating screen, a color selector and the like, the process is mainly used for removing dust, peeling and extracting the mildew grains and the like of the raw material, and mainly solves the problems of dust, bad grains, mildew grains and plasticizer of the raw material, 70 Nie's degree peeling of the low-temperature oven and no damage to the protein content of the raw material, two-stage dust removing equipment is arranged in the peeling process of the raw material to ensure the cleanness of the operating environment and improve the efficiency of the subsequent color selecting process, the process is also a core technology, the raw material comes from a cleaning workshop, the raw material which is primarily cleaned is provided with dust and bacteria, is peeled and sterilized at low temperature, the clean raw material is obtained through the subsequent two times of color selections and is conveyed into a temporary storage bin through a bucket elevator, and the improvement and the quality of the protein are ensured through a secondary process, cleaning and grading the materials in the previous workshop, conveying the materials to a low-temperature oven by using conveying equipment, adjusting the temperature to be less than or equal to 70 ℃, controlling the leaching time to be 30-45 minutes, mainly considering the moisture and the peeling rate of the raw materials, adjusting the time, discharging the raw materials out of the low-temperature oven, crushing the raw materials in a half-granulator, feeding the crushed raw materials into a peel and kernel separator, feeding the peeled raw materials into a color selector, carrying out color selection on broken grains, mildewed grains and grains with peel, and feeding the color-selected finished products into a temporary storage bin for a pressing workshop;

s3: pretreating peeled qualified raw materials, feeding part of the peeled qualified raw materials into a mellow-fragrant seed-frying line pressing workshop and feeding part of the fragrant-fragrant steaming-frying pressing workshop, wherein a daily warehouse is a steel plate warehouse produced by a medium-grain industry department steel plate warehouse manufacturing limited company, the warehouse is divided into a barrel body and a top cover, the barrel body is composed of a wall plate, a warehouse door and a ladder stand, the top cover is composed of a width beam, a warehouse top cover plate, a tension ring and population, a metering scale is selected from Beijing metering products, an NCS-series small-capacity electronic bulk material metering scale is mainly composed of a feeding device, a weighing hopper, a blanking hopper, an upright post, a pneumatic system and a control system, a magnetic separator is selected from a non-powered permanent magnet barrel iron remover produced by the medium-grain industry department machinery limited company, a plurality of YPSG crushers produced by a large-river Gaokang roller mill are selected for crushing, a YPY2 hydraulic blank rolling machine produced by the roller mill is selected as a blank rolling equipment, the frying equipment is one ZCL steaming frying pan produced by the mechanical manufacturing limited company, the oil pressing equipment adopts a ZX type screw presser produced by mechanical manufacturing Limited liability company, the biscuit cooling machine adopts a product of tobacco terrace Dongchang grain and oil machinery company, the slag raking machine adopts a BZ type slag raking machine produced by mechanical manufacturing Limited liability company, and the clarified oil tank adopts a YCYX type clarified oil tank produced by mechanical manufacturing Limited liability company;

the peanut kernels after being cleaned, stone-removed, peeled and color-selected are conveyed to a scale for metering by a temporary storage bin through a scraper conveyor and a bucket elevator, and compressed air from a compressed air storage tank serves as the scale; the measured peanut kernels are distributed to a crusher by a scraper conveyor, the crushed peanut kernels are distributed to a blank rolling machine by the scraper conveyor to be rolled into blanks, rolled blank sheets are sent into a steaming and frying pan by the scraper conveyor and a bucket elevator to be steamed and fried, hot water from a hot water tank provides process water for the steaming and frying pan, cooked blank sheets after steaming and frying are sent into an oil press by the bucket elevator, a magnetic separator and the scraper conveyor to be pressed, pressed cakes are sent to a cake cooling machine by the scraper conveyor and the bucket elevator to be cooled, an air net consisting of a brake, an air seal and a fan supplies cold air to the cake cooling machine, the cooled peanut cakes are sent to a packing workshop by the scraper conveyor, a lifter and the scraper conveyor, the pressed crude oil firstly flows into a scraper to primarily separate the oil and the residues, the oil flows into a clarifying oil tank to further separate the oil and the residues, the clarifying oil tank and the separated residues are sent back to the lifter, the refined crude oil separated from the clarifying oil tank is sent to an oil pump, the steam from the boiler room is distributed to steam equipment for a steaming and frying pan and a washing machine by a steam distributor, and can also be replaced by a heat conduction oil system to replace the steam, the heat conduction oil is a closed self-circulation energy-saving system and is distributed to heating equipment for the steaming and frying pan and an oil press by the heat conduction oil distributor, and then the heat conduction oil returns to the boiler room to obtain the mellow hot pressed peanut oil;

s4: crude oil produced in a squeezing workshop is conveyed to a filtering refining workshop through a pump, the crude oil is pumped into a finished product tank area for packaging after secondary filtering, a crystallizing tank is a cylindrical barrel with a conical bottom, a stirring shaft is arranged at the axis position of the barrel, 2-4 pairs of paddle type stirring wings are arranged on the stirring shaft, the inclination angle between the stirring wings is generally 30-45 degrees, a pair of stirring wings in a special form are also arranged at the bottom of a cone, the stirring shaft is driven to rotate by a transmission device arranged at the top of the crystallizing tank, a cooling water (or heating water) coil is arranged on the outer side of a stirrer and close to the inner wall of the barrel and used for cooling (or heating) the crude oil, an oil inlet pipe is arranged at the upper part of the barrel wall of the crystallizing tank, an oil outlet is arranged at the lower part of the cone, a spray head used for injecting water or other solutions is arranged at the top of the crystallizing tank, a filter press is provided with a pressing oil top, a filter plate, a filter frame, filter cloth and filter paper, so that the filter press can automatically maintain pressure after the filter press is compressed;

the low-temperature waterless degumming process is mainly used for carrying out low-temperature waterless degumming on the peanut crude oil at the temperature of 18-24 Nee's degree, the core technology of the process is in the workshop, and a plurality of grease enterprises do not have the process, so that the product meets the national standard, meanwhile, fragrance retention, degumming and harmful impurity removal are realized in a refining workshop, the quality safety of the finished oil is ensured, the whole process is sealed, oxygen insulation is realized and is not contacted with the atmosphere, the positive pressure of 5Pa is protected by nitrogen, impurities, dust, aerosol and microorganisms are prevented from being directly contacted with the oil, the crude oil of the mellow fragrance squeezed in a squeezing workshop is conveyed to a crystallizing tank of the refining workshop through a pump for crystallization, the temperature of the crude oil is 60-80 ℃, the crude oil is cooled by cooling water, the temperature is reduced to 18-24 Nie degrees and is filtered, the crude oil is conveyed from the crystallizing tank to a filter press by the pump for degumming and impurity separation, the filtration is carried out for the second time, the filtration paper is used for the second time, the qualified crude oil is detected to reach the finished product tank for packaging, and the unqualified crude oil is returned for recrystallization and filtration;

s5: the method comprises the steps of leaching and degreasing cakes in a squeezing workshop at low temperature, preparing protein in a protein workshop from degreased meal, carrying out negative pressure evaporation, secondary steam utilization, tail gas paraffin absorption and other processes in the leaching workshop, wherein the intermediate products in the workshop are leached crude oil and leached meal, temporarily storing peanut cakes sent from an oil extraction workshop in a storage box, sending the temporarily stored peanut cakes into a leacher material sealing auger through a feeding scraper conveyor, entering a leacher, rotating the materials in the leacher for a circle from a feed inlet to a discharge outlet, spraying and soaking the materials by mixed oil with gradually decreased concentration, finally spraying the materials by a fresh solvent, draining the materials through a section of dripping area, continuously sending the materials out of the leacher to a meal scraping plate, pumping the most concentrated mixed oil into a mixed oil coarse filter by a concentrated mixed oil pump for removing large impurities, further removing fine impurities, temporarily storing the materials in a mixed oil tank, conveying the dissolved meal contained in the leacher into an A barrel steaming and drying machine by a material sealing auger, heating the bottom by indirect steam to remove part of solvent in the meal; the wet meal after pre-removal enters a barrel B desolventizer-toaster, all solvents are removed, then the wet meal enters a cake to be cooled so that the temperature and the moisture of the meal meet the process requirements, the finished meal is sent to a meal storage, the mixed steam of the solvents and the water vapor from the top of the barrel A-B desolventizer-toaster enters a shell pass of a first long-tube evaporator to be used as a heating medium, the mixed oil is pumped into a tube pass of the first long-tube evaporator from a mixed oil tank by a steam feeding pump, the mixed steam (secondary steam) of the barrel A-B desolventizer-toaster is used as a steam heating medium, the evaporated solvents enter an evaporation condenser through a separation chamber, the mixed oil after first steam concentration automatically flows into a second long-tube evaporator to be evaporated under the film lifting action of second steam, the first long-tube evaporator, the second long-tube evaporator and the evaporation condenser keep certain residual pressure by a vacuum injection pump, the mixed oil after the second long-tube evaporator is evaporated and concentrated directly enters the top of a stripping tower to be subjected to flash evaporation, the evaporated solvent steam enters a negative pressure evaporation condenser through a separation chamber, mixed oil enters from the upper part of a stripping tower and flows down layer by layer along a disc in the tower, direct steam at the bottom of the stripping tower flows upwards in a countercurrent manner, steam and liquid are fully contacted to remove residual solvent in the oil, the liquid level at the bottom of the tower ensures the stable flow of liquid seal and finished oil by a liquid level controller, crude oil is extracted from the bottom of the stripping tower and then is sent to a refining workshop after being subjected to heat exchange and cooling with the oil after being concentrated by evaporation, the solvent condensed by a condensing system enters a water separator for water separation and then enters a circulating solvent storage for recycling, free gas from a condenser of a leacher, a barrel condenser A-B and a water separator enters an air balance tank, the solvent is recovered by a final condenser, non-condensable gas (tail gas) enters a paraffin recovery device, the gas enters from the bottom of an absorption tower, and the unabsorbed tail gas at the top is discharged into the atmosphere by a tail gas fan through a flame arrester;

s6: the crude oil leached from the peanut cake is conveyed to a refining workshop by a pump, the finished product is pumped into a finished product tank area for packaging after appropriate refining, sunflower seed oil, corn germ oil and peanut oil leached from a raw material cake in an mellow squeezing workshop are mainly produced, the refining workshop adopts full-continuous production, automatic operation is realized by PLC computer control, advanced and mature equipment and technology are selected, a continuous degumming, deacidification, decoloration and deodorization production method is adopted to carry out full refining on the crude oil, the process is flexible, different processing technologies can be selected to produce different products, the configuration of the whole set of process and equipment is combined with the actual conditions of China and enterprises, economy, safety and reasonability can be realized, the final product quality is ensured, the crude oil is degummed by a degummed centrifugal machine to be dehydrated, the qualified degummed oil is removed, the next procedure is carried out, the bleaching temperature of 90-110 ℃ is 30-40min, the addition amount of the white clay is determined according to the color condition of the raw oil, the decolored oil is pumped into a white clay filter by a pump to be filtered, the filtered product oil enters a next procedure deodorization tower to be deodorized, unqualified product oil returns to be decolored again, and the qualified oil after deodorization is pumped into a product tank to be packaged.

Example 2

The processing method of the mellow peanut oil comprises the following steps:

s1: the raw materials are firstly cleaned in a workshop to remove impurities, dust, stone impurities, mud and iron, the peanut kernels are classified according to the size of subsequent products, a cleaning sieve is provided with a plurality of sieve surfaces for cleaning the raw materials of peanuts, rapeseeds, soybeans, sunflower seeds and sesame seeds, the cleaning workshop mainly aims at removing the impurities, dust, stone impurities, mud and iron from the peanut kernels according to the requirements of the subsequent products, the peanut kernels are classified according to the size, the impurities generated in the process are collected and processed in a centralized manner through an air grid system, the raw materials put into a feeding pit comprise the raw materials on a truck which is directly purchased outside and the raw materials in a warehouse, the raw materials in the warehouse are tested and warehoused through related tests, and the raw materials in the warehouse are conveyed into a discharge shed through a forklift during production to be fed, for raw materials on a truck, after relevant quality is determined by laboratory personnel in a factory, the truck is stopped in an unloading shed and is directly fed by the unloading personnel and feeding personnel, for common peanut kernels (namely peanut kernels with large impurity content), in general, a bag is manually unpacked in the unloading shed and is fed into a discharging pit, an air suction cover is arranged at the upper part of a discharging hopper and is used for removing dust in the unloading process, the working environment of operators in the unloading shed is ensured, meanwhile, the working load of a dust removal system in a cleaning workshop is lightened, whether the dust removal system in the unloading shed is started or not can be determined according to the dust content of the raw materials in the actual operation process, the raw materials in the discharging pit reach the cleaning workshop through a scraper plate, sequentially pass through a metering scale, a cleaning sieve, a stone remover and a grading sieve to obtain large, medium and small peanut kernels, and the three peanut kernels are respectively lifted into corresponding three day bins by three hopper machines, the operation of the workshop section is completed, two-stage dust removal systems are respectively arranged on a cleaning sieve and a stone remover in a cleaning workshop, the dust removal systems are separated from the main operation space of equipment, the noise in the operation environment is reduced, a good operation environment is created for operators, a high-low material level alarm device is arranged in a buffer hopper at the upper part of a metering scale, the operators know the discharge speed of a feeding person according to the material level to control the normal operation of production, an electric gate is arranged on a chute at the outlet of the metering scale to adjust the consumption condition of the downstream equipment on the material, for high-quality peanut kernels (namely large-grain peanut kernels which are directly pressed after being cleaned), the materials are directly fed into a hopper elevator through an elevator and are conveyed into a corresponding day bin for the subsequent workshop section to use, the cleaning workshop is compatible with the cleaning work of the peanut kernels, the vegetable seeds, the soybeans and the sunflower seeds, the production of peanut kernels and the cleaning of soybeans, rapeseeds and sunflower seeds are carried out according to the seasons of raw materials, the utilization rate of equipment is increased, the technology invents a fast cutting technology because more raw materials are processed, the material change is completed in 30 minutes, no material is wasted, the cost is not increased, and the technology is also suitable for a single raw material production line;

the peanut kernels after being cleaned, desquamated and color-selected are discharged from the temporary storage bin and sterilized at the high temperature of 170 Nie's degree (flash-off) for 4 seconds without damaging the protein content of the raw materials, and are conveyed to a metering scale for metering by a scraper conveyor and a bucket elevator, and compressed air from a compressed air storage tank serves as the metering scale; distributing the measured peanut kernels to a crusher by a scraper conveyor, distributing the crushed peanut kernels to a blank rolling machine by the scraper conveyor for blank rolling, sending rolled blank sheets into a modulation pot by the scraper conveyor and a bucket elevator for modulating water, providing process water for the modulation pot by hot water from a hot water tank, sending the modulated blank sheets into an oil press by the bucket elevator, a magnetic separator and the scraper conveyor for pressing, sending pressed cakes to a low-temperature leaching workshop by the scraper conveyor and the bucket elevator, allowing crude oil pressed by a presser to flow into a slag raking machine to primarily separate oil and slag, allowing the oil to flow into a oil clarifying tank to further separate the oil and the slag, returning the slag separated by the oil clarifying tank and the slag raking machine to the lifter, and conveying the crude oil separated by the oil clarifying tank to a refining workshop by an oil pump to obtain the mellow cold-pressed peanut oil;

Example 3

The processing method of the mellow peanut oil comprises the following steps:

the peanut kernels after being cleaned, stone-removed, peeled and color-selected are conveyed to a scale for metering by a temporary storage bin through a scraper conveyor and a bucket elevator, and compressed air from a compressed air storage tank serves as the scale; the measured peanut kernels are conveyed to a seed frying machine by a scraper conveyor for 15 minutes at the temperature of 200-220 ℃, the roasting temperature is kept uniform and is not coked, the fried materials are conveyed to an oil press by a bucket elevator, a magnetic separator and the scraper conveyor for pressing, the temperature is controlled to be about 150 ℃ during conveying, conveying equipment is used for external heat preservation, the pressed cakes are conveyed to a cake cooling machine by the scraper conveyor and the bucket elevator for cooling and are stopped, an air net consisting of an air seal machine and a fan supplies cold air to a cake cooling machine, cooled peanut cakes are conveyed to a packing workshop through a scraper conveyor, a lifter and the scraper conveyor, crude oil squeezed by a squeezer firstly flows into a slag raking machine to primarily separate oil from slag, oil flows into a clarifying oil tank to further separate the oil from the slag, the slag separated by the clarifying oil tank and the slag raking machine is conveyed back to the lifter to be squeezed, and the crude oil separated by the clarifying oil tank is conveyed to a refining workshop through an oil pump to obtain mellow fried seed pressed peanut oil;

the low-temperature waterless degumming process is mainly used for carrying out low-temperature waterless degumming on the peanut crude oil at the temperature of 18-24 Nee's degree, the core technology of the process is in the workshop, and a plurality of grease enterprises do not have the process, so that the product meets the national standard, meanwhile, fragrance retention, degumming and harmful impurity removal are realized in a refining workshop, the quality safety of the finished oil is ensured, the whole process is sealed, oxygen insulation is realized and is not contacted with the atmosphere, the positive pressure of 5Pa is protected by nitrogen, impurities, dust, aerosol and microorganisms are prevented from being directly contacted with the oil, the crude oil of the mellow fragrance squeezed in a squeezing workshop is conveyed to a crystallizing tank of the refining workshop through a pump for crystallization, the temperature of the crude oil is 60-80 ℃, the crude oil is cooled by cooling water, the temperature is reduced to 18-24 Nie degrees and is filtered, the crude oil is conveyed from the crystallizing tank to a filter press by the pump for degumming and impurity separation, the filtration is carried out for the second time, the filtration paper is used for the second time, the qualified crude oil is detected to reach;

While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the various features of the embodiments disclosed herein may be used in any combination, provided that there is no structural conflict, and the combinations are not exhaustively described in this specification merely for the sake of brevity and conservation of resources. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. The processing method of the mellow peanut oil is characterized by comprising the following steps: the processing method of the mellow peanut oil comprises the following steps:

2. The processing method of mellow peanut oil according to claim 4, characterized by comprising the following steps: the workshop cleaning working steps are as follows: for peanut kernels with more impurity content, manually removing bags, feeding the peanut kernels into a discharging pit in a discharging shed, enabling raw materials in the discharging pit to reach a cleaning workshop through a scraper plate, sequentially passing through a metering scale, a cleaning sieve, a stone remover and a grading sieve to obtain large, medium and small peanut kernels, respectively conveying the peanut kernels into corresponding three daily bins through three bucket elevators, and directly feeding the pretreated peanut kernels into the bucket elevators through an elevator to convey the peanut kernels into the corresponding daily bins for subsequent working sections.

3. The processing method of mellow peanut oil according to claim 5, characterized by comprising the following steps: the working steps of the peeling workshop are as follows: the classified materials are conveyed to a low-temperature oven by conveying equipment, the raw materials are discharged from the low-temperature oven and enter a half-pellet mill for crushing, the crushed raw materials enter a peel and kernel separator, the peeled raw materials enter a color selector for color selection of bad grains, mildewed grains and grains with peel, and finished products obtained by color selection are stored in a temporary storage bin for a pressing workshop.

4. The processing method of mellow peanut oil according to claim 6, characterized by comprising the following steps: the working steps of the pressing workshop are as follows: the peanut kernels after being cleaned, stone removed, peeled and color selected are conveyed to a metering scale for metering by a temporary storage bin through a scraper conveyor and a bucket elevator, the metered peanut kernels are distributed to a crusher through the scraper conveyor, the crushed peanut kernels are distributed to a blank rolling machine through the scraper conveyor and the bucket elevator for rolling, rolled blank pieces are conveyed into a steaming and frying pan through the scraper conveyor and the bucket elevator for steaming and frying, cooked blank pieces after steaming and frying are conveyed into an oil press through the bucket elevator, a magnetic separator and the scraper conveyor for squeezing, squeezed cakes are conveyed to a cake cooling machine through the scraper conveyor and the bucket elevator for cooling, the cooled peanut cakes are conveyed to a packing workshop through the scraper conveyor, the elevator and the scraper conveyor, crude oil squeezed out by a squeezer firstly flows into a scraper loader to separate oil and slag, the oil flows into a clarifying oil tank to further separate the oil and the slag, and the crude oil separated from the clarifying oil tank is conveyed to the refining workshop through an oil pump.

5. The processing method of mellow peanut oil according to claim 7, characterized by: the working steps of the refining workshop are as follows: and conveying the crude oil squeezed in the squeezing workshop to a crystallizing tank of a refining workshop through a pump for crystallization, cooling the crude oil at 60-80 ℃, introducing chilled water to reduce the temperature to 18-24 Nie's degree, starting first filtering, conveying the crude oil from the crystallizing tank to a filter press by using the pump for degumming and impurity separation, performing second filtering, filtering by using filter paper for the second time, and detecting the crude oil to be qualified and reach a finished product tank for packaging.