CN103289818A - 37-Stage cold pressing process - Google Patents

Abstract

The invention discloses an oil processing technique, and in particular relates to a 37-stage cold pressing process. The 37-stage cold pressing process provided by the invention is capable of effectively protecting nutritional ingredients in tea seed oil and the produced tea seed oil is good in quality; and the 37-stage cold pressing process comprises the following steps of: preprocessing: removing impurities, dust particles, stone and iron materials from the collected tea seeds, screening out mildewed tea seeds, reducing moisture content in the tea seeds and separating husk from kernel after softening and tempering; cold pressing: putting tea kernels in a cold pressing machine for cold pressing, and then filtering and charging nitrogen to obtain crude oil; refining: performing refining treatment on the crude oil, removing phospholipid, colloid impurities, isolated fatty acids, saponins, oil pigments, oxygen, stink matters and waxes in the crude oil, thereby obtaining refined oil; storage and packaging: storing the refined oil in a finished product oil tank with nitrogen charged, and filtering the finished product oil to remove pollutants of equipment and pipelines, and then charging the obtained finished product oil to a dried bactericidal bottle embryo; next, performing oil-nitrogen blending, labeling and code spraying, covering and light inspection, and finally, packaging and boxing.

Description

37 road cold pressing process

Technical field

The present invention relates to grease processing technology field, particularly relate to a kind of 37 road cold pressing process.

Background technology

As everyone knows, tea seed refining oil is the higher edible oil of a kind of nutritive value, because it has higher unsaturated fatty acids and linoleic acid content, becomes the health-care edible oil of people's favor gradually; Existing tea-seed oil uses the hot moulding method in producing usually, so not only makes the nutritive ingredient loss to some extent in the tea-seed oil, and the tea-seed oil color that makes simultaneously is darker, also needs further processing.

Summary of the invention

For solving the problems of the technologies described above, the invention provides and a kind ofly can effectively protect nutritive ingredient in the tea-seed oil, the tea-seed oil quality of production is 37 road cold pressing process preferably.

37 road cold pressing process of the present invention may further comprise the steps successively, pre-treatment, cold press, refining and storage package, wherein,

Pre-treatment: the tea seed of gathering is removed impurity, grit, stone and iron thing, sieve out the tea seed that goes mouldy, reduce the moisture in the tea seed, and after softening modified, shell benevolence is separated;

Cold press: tea benevolence is inserted cold press in the cold pressing expeller, and obtain crude oil through filtration with after filling nitrogen;

Refining: with the crude oil refining treatment, remove wherein phosphatide, colloidality impurity, free fatty acids, soap class, grease pigment, oxygen, stink substance and wax, and obtain refining oil;

Storage package: refining oil is filled nitrogen is stored to product tank, and through after processed oil filters the pollutent of the equipment of removing and pipeline, can to the bottle embryo of drying sterilization, subsequently through after oily nitrogen allotment, decals coding and the inspection of capping lamp, the packing joint sealing.

Further, that described pre-treatment comprises successively is selected, oven dry, dust removal of pneumatic separation, cleaning impurity elimination, go the stone deironing, softening modifiedly separate 7 steps with tea benevolence shell, wherein,

Selected: as to utilize the centrifugation of mechanical rotation and inclination, remove the impurity in the tea seed, sieve out the tea seed that goes mouldy, make the massfraction of impurities in the tea seed be less than or equal to 0.5%;

Oven dry: hot-air seasoning equipment, the moisture in the reduction tea seed is to being less than or equal to 10%;

Dust removal of pneumatic separation: the centrifugal force that utilizes swirling eddy to produce separates grit from the tea seed;

Cleaning impurity elimination: utilize the vibratory cleaning sieve, separate tea seed and cotton rope foreign material, reduce the massfraction of impurities in the tea seed to being less than or equal to 0.1%;

Go the stone deironing: utilize stone remover and magnetic separator, the stone and the iron thing that mix in the screening tea seed;

Softening modified: as to adopt the mode that steam is stifling and the layering of tea seed is fallen, softening modified tea seed;

Tea benevolence shell separates: the centrifugal inertial force that utilizes the decorticator high speed rotary to produce, broken material shell realize that the benevolence shell separates, and reach the massfraction that contains tea seed shell in the tea seed kernel and be no more than 15%, and the massfraction that contains tea seed kernel in the tea seed shell is no more than 1.5%.

Further, described cold press comprises that successively physics cold press, crude oil once filter, crude oil fills nitrogen and 4 steps of crude oil secondary filtration, wherein,

Physics cold press: adopt duplex oil press zhai extruding squeezing tea seed kernel, and make the massfraction of Residual oil in the tea seed kernel oil cake after the squeezing be no more than 4%;

Crude oil once filters: adopt the crude oil after stainless steel filtering net filters cold press, and make the massfraction of impurity in the crude oil not be higher than 0.3%;

Crude oil fills nitrogen: the crude oil after will filtering charges into nitrogen;

Crude oil secondary filtration: adopt the deep bed filter filtered crude oil, and make the massfraction of impurity in the crude oil not be higher than 0.1%.

Further, described refining comprises successively comes unstuck, a depickling, takes off soap, washing, dehydration, drying and dehydrating, decolouring, decolorization filtering, deoxidation, secondary depickling, deodorization, dewaxing, wax filtration, degreasing and solid fat filters 15 steps, wherein,

Come unstuck: add degumming agent, remove phosphatide and colloidality impurity in the tea-seed oil;

A depickling: add food grade alkali lye, remove free lipid acid in the tea-seed oil, reduce the acid number (koH)/(mg/g) of tea-seed oil to being less than or equal to 1.0%;

Take off soap: the centrifugal force that utilizes the centrifuge drum high speed rotating to produce, separate tea-seed oil and soap class, and the acid number (koH)/(mg/g) of reduction tea-seed oil is to being less than or equal to 0.8%;

Washing: tea-seed oil is mixed stirring with water, adsorb remaining soap class;

Dehydration: the centrifugal force that utilizes the centrifuge drum high speed rotating to produce, separate tea-seed oil and water;

Drying and dehydrating: heating under vacuum is removed residual moisture in the tea-seed oil;

Decolouring: utilize atlapulgite as sorbent material, absorption and remove pigment and other impurity in the tea-seed oil under vacuum condition;

Decolorization filtering: stainless steel filtering net filters tea-seed oil to remove carclazyte;

Deoxidation: remove the oxygen in the tea-seed oil under the vacuum condition;

The secondary depickling: under the high vacuum condition, steam feeds tea-seed oil and removes FFA, unsaponifiables and odoring substance so that steam carries, and the acid number (koH)/(mg/g) of reduction tea-seed oil is to being less than or equal to 0.5%;

Deodorization: under the high temperature condition of negative pressure, steam feeds tea-seed oil so that steam carries the stink substance of removing in the tea-seed oil;

Dewaxing: tea-seed oil is inserted maturator, and crystallization is at least 48 hours under the cold condition, separates out the wax in the tea-seed oil;

Wax is filtered: use and unload the wax filter, separate tea-seed oil and wax;

Degreasing: adopt winterization crystallization and winterization growing the grain equipment, remove wax fat and solid fat in the tea-seed oil;

Solid fat filters: use the winterization filter, separate tea-seed oil and solid fat, and obtain processed oil.

Further, described storage package comprises successively that processed oil annotates that nitrogen, processed oil storage tank stores, processed oil filter, the storage of can fuel tank, bottle embryo cleaning and sterilizing, the inspection of oven dry germicidal lamp, processed oil auto-filling, the allotment of oily nitrogen, decals coding automatically, the inspection of capping lamp and 11 steps of joint sealing of packing, wherein

Processed oil is annotated nitrogen: nitrogen injection in processed oil;

Processed oil storage tank stores: processed oil is pumped into the processed oil storage tank stores;

Processed oil filters: use continuous deep bed filter, the impurity of pipeline transportation and storage process in the filtration processed oil;

Can fuel tank storage: processed oil is pumped into the can fuel tank store;

Bottle embryo cleaning and sterilizing: to the bottle embryo cleaning and sterilizing of processed oil can;

Oven dry germicidal lamp inspection: to the bottle embryo oven dry sterilization of processed oil can, and finish the lamp inspection;

The processed oil auto-filling: with the processed oil auto-filling to the bottle embryo in;

Oil nitrogen allotment: with air emptying residual in the bottle embryo, and charge into nitrogen;

Automatically decals coding: label is sticked on bottle embryo automatically;

Capping lamp inspection: to the capping of bottle embryo, and detect substandard product;

Packing joint sealing: with the packing of the processed oil after can joint sealing.

Compared with prior art beneficial effect of the present invention is: in order effectively to protect nutritive ingredient in the tea-seed oil; 37 road cold pressing process of the present invention all do not use comparatively high temps to handle in each step; in addition; in order effectively to improve the quality of bitter edible plant seed refining oil; tea seed after the shelling; only use tea benevolence to finish further tea-seed oil and refine processing, refining process can effectively improve the quality of tea-seed oil simultaneously.

Description of drawings

Fig. 1 is schema of the present invention.

Embodiment

Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples are used for explanation the present invention, but are not used for limiting the scope of the invention.

As shown in Figure 1,37 road cold pressing process of the present invention, may further comprise the steps successively, pre-treatment, cold press, refining and storage package, wherein, pre-treatment: the tea seed of gathering is removed impurity, grit, stone and iron thing, sieve out the tea seed that goes mouldy, reduce the moisture in the tea seed, and after softening modified, shell benevolence is separated; Cold press: tea benevolence is inserted cold press in the cold pressing expeller, and obtain crude oil through filtration with after filling nitrogen; Refining: with the crude oil refining treatment, remove wherein phosphatide, colloidality impurity, free fatty acids, soap class, grease pigment, oxygen, stink substance and wax, and obtain refining oil; Storage package: refining oil is filled nitrogen is stored to product tank, and through after processed oil filters the pollutent of the equipment of removing and pipeline, can to the bottle embryo of drying sterilization, subsequently through after oily nitrogen allotment, decals coding and the inspection of capping lamp, the packing joint sealing.

That pre-treatment comprises successively is selected 1, oven dry 2, dust removal of pneumatic separation 3, cleaning impurity elimination 4, go stone deironing 5, softening modified 6 to separate 7 these 7 steps with tea benevolence shell, wherein, selected: as to utilize the centrifugation of mechanical rotation and inclination, remove the impurity in the tea seed, sieve out the tea seed that goes mouldy, make the massfraction of impurities in the tea seed be less than or equal to 0.5%; Oven dry: hot-air seasoning equipment, the moisture in the reduction tea seed is to being less than or equal to 10%; Dust removal of pneumatic separation: the centrifugal force that utilizes swirling eddy to produce separates grit from the tea seed; Cleaning impurity elimination: utilize the vibratory cleaning sieve, separate tea seed and cotton rope foreign material, reduce the massfraction of impurities in the tea seed to being less than or equal to 0.1%; Go the stone deironing: utilize stone remover and magnetic separator, the stone and the iron thing that mix in the screening bitter edible plant seed; Softening modified: as to adopt the mode that steam is stifling and the layering of tea seed is fallen, softening modified tea seed; Tea benevolence shell separates: the centrifugal inertial force that utilizes the decorticator high speed rotary to produce, broken material shell realize that the benevolence shell separates, and reach the massfraction that contains tea seed shell in the tea seed kernel and be no more than 15%, and the massfraction that contains tea seed kernel in the tea seed shell is no more than 1.5%.

Cold press comprises that successively physics cold press 8, crude oil once filter 9, crude oil fills nitrogen 10, crude oil secondary filtration 11 these 4 steps, wherein, physics cold press: adopt duplex oil press zhai extruding squeezing tea seed kernel, and make the massfraction of Residual oil in the tea seed kernel oil cake after the squeezing be no more than 4%; Crude oil once filters: adopt the crude oil after stainless steel filtering net filters cold press, and make the massfraction of impurity in the crude oil not be higher than 0.3%; Crude oil fills nitrogen: the crude oil after will filtering charges into nitrogen; Crude oil secondary filtration: adopt the deep bed filter filtered crude oil, and make the massfraction of impurity in the crude oil not be higher than 0.1%.

Refining comprises 12, the depicklings 13 of coming unstuck successively, takes off soap 14, washing 15, dehydration 16, drying and dehydrating 17, decolouring 18, decolorization filtering 19, deoxidation 20, secondary depickling 21, deodorization 22, dewaxing 23, wax filter 24,26 these 15 steps are filtered in degreasing 25, solid fat, wherein, come unstuck: add degumming agent, remove phosphatide and colloidality impurity in the tea-seed oil; A depickling: add food grade alkali lye, remove free lipid acid in the tea-seed oil, reduce the acid number (koH)/(mg/g) of tea-seed oil to being less than or equal to 1.0%; Take off soap: the centrifugal force that utilizes the centrifuge drum high speed rotating to produce, separate tea-seed oil and soap class, and the acid number (koH)/(mg/g) of reduction tea-seed oil is to being less than or equal to 0.8%; Washing: tea-seed oil is mixed stirring with water, adsorb remaining soap class; Dehydration: the centrifugal force that utilizes the centrifuge drum high speed rotating to produce, separate tea-seed oil and water; Drying and dehydrating: heating under vacuum is removed residual moisture in the tea-seed oil; Decolouring: utilize atlapulgite as sorbent material, absorption and remove pigment and other impurity in the tea-seed oil under vacuum condition; Decolorization filtering: stainless steel filtering net filters tea-seed oil to remove carclazyte; Deoxidation: remove the oxygen in the tea-seed oil under the vacuum condition; The secondary depickling: under the high vacuum condition, steam feeds tea-seed oil and removes FFA, unsaponifiables and odoring substance so that steam carries, and the acid number (koH)/(mg/g) of reduction tea-seed oil is to being less than or equal to 0.5%; Deodorization: under the high temperature condition of negative pressure, steam feeds tea-seed oil so that steam carries the stink substance of removing in the tea-seed oil; Dewaxing: tea-seed oil is inserted maturator, and crystallization is at least 48 hours under the cold condition, separates out the wax in the tea-seed oil; Wax is filtered: use and unload the wax filter, separate tea-seed oil and wax; Degreasing: adopt winterization crystallization and winterization growing the grain equipment, remove wax fat and solid fat in the tea-seed oil; Solid fat filters: use the winterization filter, separate tea-seed oil and solid fat, and obtain processed oil.

Storage package comprises successively that processed oil annotates that nitrogen 27, processed oil storage tank stores 28, processed oil filter 29, can fuel tank storage 30, bottle embryo cleaning and sterilizing 31, oven dry germicidal lamp inspection 32, processed oil auto-filling 33, oily nitrogen allotment 34, decals coding 35 automatically, capping lamp inspection 36 and packing joint sealing 37 these 11 steps, wherein, processed oil is annotated nitrogen: nitrogen injection in processed oil; Processed oil storage tank stores: processed oil is pumped into the processed oil storage tank stores; Processed oil filters: use continuous deep bed filter, the impurity of pipeline transportation and storage process in the filtration processed oil; Can fuel tank storage: processed oil is pumped into the can fuel tank store; Bottle embryo cleaning and sterilizing: to the bottle embryo cleaning and sterilizing of processed oil can; Oven dry germicidal lamp inspection: to the bottle embryo oven dry sterilization of processed oil can, and finish the lamp inspection; The processed oil auto-filling: with the processed oil auto-filling to the bottle embryo in; Oil nitrogen allotment: with air emptying residual in the bottle embryo, and charge into nitrogen; Automatically decals coding: label is sticked on bottle embryo automatically; Capping lamp inspection: to the capping of bottle embryo, and detect substandard product; Packing joint sealing: with the packing of the processed oil after can joint sealing.

Embodiment one

In actual production, can adopt following Apparatus and method for to finish the processing process of tea-seed oil:

1, the camellia seed is selected

(1) selects equipment for use: trommel screen;

(2) purpose: remove impurity, sieve the tea seed that goes mouldy;

(3) require: impurity≤0.5%, moisture 25%-30% does not have the seed that goes mouldy;

(4) reason: prevent other non-oil plant, objectionable impurities pollution;

(5) standard: electric current 2.0-2.5A training;

(6) equipment principle: utilize mechanical rotation and inclination, make material and defective feed separation.

2, oven dry

(1) selects equipment for use: the dryer tower;

(2) purpose: remove moisture;

(3) require: moisture≤10%, the no smell of burning;

(4) reason: prevent that benzopyrene to the pollution of food and to the harm of human body, having avoided high bake;

(5) standard: temperature of charge 60-65 ℃;

(6) equipment principle: the heat that hotblast stove produces, warm air is sent into drying tower by calorifier through pipeline, warm air contacts with tea seed in the tower, evaporates redundant moisture in the material.

3, dust removal of pneumatic separation

(1) selects equipment for use: cyclonic separator;

(2) purpose: separate the foreign material that contain in the tea seed;

(3) require: assorted dirt thing contains fuel feed rate≤0.1%;

(4) equipment principle: the centrifugal force that utilizes swirling eddy to produce is separated grit from air-flow.

4, cleaning impurity elimination

(1) selects equipment for use: the vibratory cleaning sieve;

(2) purpose: remove impurity, the cotton rope foreign material;

(3) require: impurity≤0.1%;

(4) equipment principle: two motor synchronous reverse rotations make the excited vibration device produce reverse exciting force on the vibratory screening apparatus, force sieve nest to drive screen cloth and do longitudinal motion, make the material on it be subjected to exciting force and the range of periodically dishing out forward, thereby finish the effect of material screening.

5, go the stone deironing

(1) selects equipment for use: stone remover, magnetic separator;

(2) purpose: remove stone, ironware thing;

(3) require: no stone, iron thing;

(5) reason: prevent that heavy metal substance from entering in the food, guarantees stabilization of equipment performance;

(6) equipment principle: utilize different these characteristics of proportion of material and wherein stone, adopt the sieve method that adds air draught of shaking that stone is separated, material is given to the cylinder field regions equably, and magnetic substance is attracted to the magnetic pulley surface.

6, softening modified

(1) selects equipment for use: plate dryer;

(2) purpose: moisture is modified softening;

(3) require: moisture 10%-8%;

(4) standard: device frequency 45-50HZ;

(5) equipment principle: end interlayer feeds steam, and material falls into the superiors' flat board by opening for feed, at the uniform velocity moves to end and fall into lower floor under the promotion of scraper plate, moves in the other direction in lower floor, and tangential movement so successively and whereabouts are until bottom discharge.

7, tea benevolence shell separates

(1) selects equipment for use: single roller decorticator;

(2) purpose: divest tea seed surface shell;

(3) require: contain shell 13%-15% in the benevolence, contain benevolence 1%-1.5% in the shell;

(4) standard: device frequency 25-30HZ;

(5) equipment principle: working part is single roller that a surface has groove, because its high speed rotary produces very big centrifugal inertial force, material with single roller is got rid of at a high speed to coarse and hard outer wall screen cloth, make itself and outer wall that fierce collision take place, so the material shell is just broken and reach the benevolence shell and separate.

8, physics cold press

(1) selects equipment for use: the duplex oil press zhai;

(2) purpose: material extruding squeezing;

(3) require: cake Residual oil 3%-4%;

(4) standard: actuating current 55-60A training;

(5) equipment principle: pass to main shaft behind the dynamic retarding, the press for extracting juice spiral shell on the main shaft is constantly pushed ahead the oil plant between screw thread along with rotation, and the space dwindles gradually between thorax and press for extracting juice spiral shell owing to press, and the density of oil plant increases, thereby pressure increases gradually.

9, crude oil once filters

(1) selects equipment for use: the vertical blade filter;

(2) purpose: remove impurity in the thick grease;

(3) require: impurity 0.25%-0.3%, acid value (koH)/(mg/g)≤3%;

(4) standard: pressure 0.2mpa-0.25mpa;

(5) equipment principle: treat filtrate in pump enters jar and be full of, under the effect of pressure, the solid impurity in the filtrate is held back by stainless steel filtering net, and forms filter cake at filter screen, filtrate is chewed through filter through filter screen and is entered drain pipe outflow tank body, thus the filtrate that obtains clarifying.

10, crude oil fills nitrogen

(1) selects equipment for use: Nitrogen plant, oil tank;

(2) purpose: keep oil product and form nutritive ingredient;

(3) require: nitrogen gas purity 99.99%;

(4) principle of work: be to be raw material with the air, utilize the method for physics, wherein oxygen is separated with nitrogen and obtain nitrogen.

11, crude oil secondary filtration

(1) selects equipment for use: deep bed filter;

(2) purpose: remove impurity in the grease;

(3) require: impurity 0.1%-0.05%, moisture 0.2%--0.25%;

(4) equipment principle: major partss such as bag reinforcing mat are formed, and filtrate flows into filter bag by filter housing side inlet tube, and the filter bag device is in strengthening basket, and the liquid infiltration filter bag can obtain qualified filtrate, and impurity particle is tackled by filter bag.

12, come unstuck

(1) selects equipment for use: acid-respons jar, mixing tank;

(2) purpose: remove phosphatide in the oil, colloidality impurity;

(3) require: the no precipitate of heat test (280 ℃);

(4) reason: phosphatide can produce a large amount of foams when fried, and the beginning coking forms the chocolate throw out, has a strong impact on the quality of food oils and edible;

(5) standard: add 80-85 ℃ of oil mass 0.1%-0.2% food grade phosphoric acid temperature;

(6) equipment principle: select mechanical means for use, grease is mixed with foodstuff additive, reach the purpose of time-delay reaction.

13, a depickling

(1) selects equipment for use: neutralization reaction jar, mixing tank;

(2) purpose: remove free lipid acid in the oil;

(3) require: acid number (koH)/(mg/g)≤1.0%;

(4) reason: acid number is the content of free lipid acid in the edible oil. also have a value iodine value, refer to the content of unsaturated fatty acids in the lipid acid. along with storing for a long time and illumination of oil, ingress of air, the influence of environment such as high temperature, the content of free fatty acids increases, and the content of unsaturated fatty acids reduces, and just unsaturated fatty acids is oxidized, thereby peroxide value is increased, thereby eating quality and the quality of influence oil.

(5) standard: food grade alkali lye, service temperature 85-90 ℃;

(6) equipment principle: select mechanical means for use, make grease mix, react with alkali lye.

14, take off soap

(1) selects equipment for use: disc centrifuge;

(2) purpose: grease separates with the soap class;

(3) require: acid number (koH)/(mg/g)≤0.8%;

(4) reason: neat soap is at the grease duration of storage because moisture, temperature, light, etc. the effect of factor, be broken down into free fatty acids in oil and acid number increased, cause the oil product storage stability to reduce.

(5) standard: the transparent outlet back pressure of whizzer light phase export 0.15-0.2mpa;

(6) equipment principle: the powerful centrifugal force that utilizes the centrifuge drum high speed rotating to produce, the settling velocity of particle in the accelerating liquid is opened the separating substances of different settling ratios and buoyant density in the grease.

15, washing

(1) selects equipment for use: water washing tank, mixing tank;

(2) purpose: profit mixes washing;

(3) require: amount of water is the heavy 10%-15% of oil;

(4) reason: residual the soaping of assurance oil product washed separation thoroughly;

(5) standard: 85-90 ℃ of profit mixing temperature;

(6) equipment principle: select mechanical means for use, make grease mix stirring with water.

16, dehydration

(1) selects equipment for use: disc centrifuge;

(2) purpose: grease and water sepn;

(3) require: saponified matter content 30-50PPm;

(4) reason: moisture causes the oil product storage stability to reduce at the grease duration of storage;

(5) standard: the transparent outlet back pressure of whizzer light phase export 0.15-0.2mpa;

(6) equipment principle: the powerful centrifugal force that utilizes the centrifuge drum high speed rotating to produce, the settling velocity of particle in the accelerating liquid is opened the separating substances of different settling ratios and buoyant density in the grease.

17, drying and dehydrating

(1) selects equipment for use: vacuum drying tower;

(2) purpose: remove moisture in the grease;

(3) require: moisture 0.03%-0.05%, the no precipitate clarification of heat test (280 ℃), transparent;

(4) reason: guarantee the oil product storage stability;

(5) standard: vacuum tightness-0.08～-0.09mpa, temperature 110-115 ℃;

(6) equipment principle: by after taking out the equipment container inner air and reaching predetermined vacuum level, add heat abstraction tower internal moisture.

18, decolouring

(1) selects equipment for use: bleaching tower;

(2) purpose: remove grease pigment and other impurity;

(3) require: yellow 20 red 1.0;

(4) reason: influence the grease appearance luster, local flavor;

(5) standard: vacuum tightness-0.08～-.09mpa, temperature 110-115 ℃; Bleaching time 20-25min, the carclazyte amount is the heavy 1%-2% of oil;

(6) equipment principle: be mainly used in the decolouring of grease, it utilize tool with porous atlapulgite as sorbent material, absorption and remove pigment and other impurity in the material under vacuum condition, thus reach the purpose that removes the pigment in the grease.

19, decolorization filtering

(1) selects equipment for use: the decolouring leaf-type filter;

(2) purpose: the useless carclazyte of Filtration Adsorption and other impurity and trace metal material;

(3) require: oil colours clarification, transparent;

(4) reason: influence the oil product outward appearance, local flavor;

(5) standard: pressure 0.2mpa～0.25mpa;

(6) equipment principle: treat filtrate in pump enters filter and be full of, under the effect of pressure, the solid impurity in the filtrate (useless carclazyte) is held back by stainless steel filtering net, and forms filter cake at filter screen, filtrate is chewed through filter through filter screen and is entered drain pipe outflow filter, thus the filtrate that obtains clarifying.

20, deoxidation

(1) selects equipment for use: deaerator, level Four squirt pump;

(2) purpose: remove the air in steel pipe, the equipment container;

(3) require: the 5-5.5 of peroxide value/(mmol/kg);

(4) reason: avoid Oxidation of Fat and Oils;

(5) standard: pressure vacuum degree-0.08～-.09mpa, temperature 115-120 ℃;

(6) equipment principle: borrow vacuum for the decolouring grease and suck working chamber, deoxygenation outgases under vacuum condition.

21, secondary depickling

(1) selects equipment for use: extracting tower, level Four squirt pump;

(2) purpose: physical deacidification is under high vacuum condition, carries by steam with steam feeding grease and removes FFA, unsaponifiables, odoring substance;

(3) require: acid number (koH)/(mg/g)≤0.5%;

(4) reason: avoid spoiled by rancid oil or fat;

(5) standard: pressure vacuum degree-0.08～-.09mpa, temperature 210-220 ℃;

(6) equipment principle: extracting tower steam under high temperature, high vacuum condition feeds grease, and under vacuum condition, smell and material also volatilize from the top layer of tower.

22, deodorization

(1) selects equipment for use: deodorization tower, level Four squirt pump;

(2) purpose: grease deodorization can improve the smoke point of grease except the stink substance in deoiling, and improves the local flavor of edible oil, and stability, colourity and the quality of grease are made moderate progress.In deodorization, superoxide and degradation production thereof and some thermo-sensitivity pigments are removed the volatility resolvent of protein in the oil plant that goes rotten, and remove polycyclic aromatic hydrocarbons and the remains of pesticide of small molecular weight;

(3) require: free from extraneous odour;

(4) reason: influence mouthfeel and local flavor;

(5) standard: pressure vacuum degree-0.08～-.09mpa, temperature 225-230 ℃;

(6) equipment principle: the stink molecule organism in the grease under the high temperature negative pressure condition than the easier volatilization of sweet three esters, water vapour is when containing the grease of frowziness, the volatilized malodor components of water vapour institute is saturated, and by the ratio effusion of its dividing potential drop, thereby reach the effect that removes stink.

23, dewaxing

(1) selects equipment for use: crystallizer, maturator, refrigerator;

(2) purpose: refrigerated stability and the transparency of improving grease;

(3) require: freezing test (deposit for 0 ℃ and hide 5.5h) clarification, transparent;

(4) reason: the wax in the grease is the ester that senior monocarboxylic acid and high alcohol form, and the wax in the vegetable oil material mainly is present in the cot, and next is present in the cell walls, has a strong impact on eating mouth feel and sense organ;

(5) standard: 0 ℃-3 ℃ of service temperatures, crystallization in 48 hours, growing the grain;

(6) equipment principle: utilize mechanical means, make to obtain the crystal grain that is easy to separate, slowly cooling.After temperature drops to predetermined Tc gradually, also need under this temperature, to keep certain hour, carry out growing the grain (or claiming aging, maturation), in the growing the grain process, crystal grain continues to grow up, and is formed into crystal growth from nucleus and is big and solid crystallization.

24, wax is filtered

(1) selects equipment for use: unload the wax filter;

(2) purpose: grease is separated with wax;

(3) require: limpid, transparent;

(4) reason: oil product muddiness under the low temperature;

(5) standard: working pressure 0.2-0.25mpa, crystallization in 24 hours, growing the grain;

(6) equipment principle: formed by five major parts such as filter press filter board, hydraulic efficiency system, filter frame, filter plate transmission system and electrical system.The principle of plate-and-frame filter press work operation is fairly simple, compresses the sheet frame group by the hydraulic pressure application of force earlier, and grease is entered by the centre, is distributed between each filter cloth, takes off the liquid method by what filtration medium realized that solid, liquid separates.

25, degreasing

(1) selects equipment for use: crystallizer, maturator, refrigerator;

(2) purpose: refrigerated stability and the transparency of improving grease;

(3) require: freezing test (deposit for 5 ℃ and hide 5.5h), clarification, transparent;

(4) reason: contain small amount of solid fat in the grease, the transparency of oil product and digestibility are descended, and make gas flavour and palatability variation, thereby reduce eating quality, the nutritive value of grease;

(5) standard: working pressure 0.2-0.25mpa;

(6) equipment principle: adopt winterization crystallization and winterization growing the grain equipment, remove wax fat and solid fat in the oil.

26, solid fat filters

(1) selects equipment for use: the winterization filter;

(2) purpose: grease is separated with solid fat;

(3) require: limpid, transparent;

(4) reason: oil product muddiness under the low temperature;

(5) standard: working pressure 0.2-0.25mpa;

(6) equipment principle: the suspension solid, liquid two-phase separates.

27, processed oil is annotated nitrogen

(1) selects equipment for use: the Nitrogen plant group;

(2) purpose: avoid Oxidation of Fat and Oils, stably stored grease stability;

(3) require: the 5-5.5 of peroxide value/(mmol/kg);

(4) reason: get rid of oxygen when grease processing or storage as much as possible, minimizing oxygen contacts with grease, prevents the excellent method of the bad change of oil quality;

(5) standard: nitrogen gas purity 99.99%;

(6) equipment principle: be to be raw material with the air, utilize the method for physics, wherein oxygen is separated with nitrogen and obtain nitrogen.

28, processed oil storage tank stores

(1) selects equipment for use: high-pressure sealed drive pump;

(2) purpose: avoid air to contact with grease;

(3) require: the 5-5.5 of peroxide value/(mmol/kg);

(4) reason: grease is subjected to airborne oxygen molecule oxidation easily in storing course of conveying, produces oxide compound;

(5) standard: pump discharge pressure 0.3-0.4mpa;

(6) equipment principle: pump all adopts the pump body structure that axially returns liquid, and grease is course of conveying under sealing.

29, processed oil filters

(1) selects equipment for use: continuous filter;

(2) purpose: solid-liquid separation;

(3) require: impurity 0.02%-0.03%;

(4) reason: avoid equipment and pipeline to be subjected to contaminating impurity;

(5) standard: equipment operating pressure 0.2-0.25mpa;

(6) equipment principle: the filter liquide medium be pressed into or the suction deep bed filter after, when needing the filtered liquid medium through filter bag, impurity is intercepted in the filter bag, filtrate flows into filter bag by the side inlet tube of filter shell, filter bag itself is that the filter bag that liquid infiltration is crossed required fineness grade can obtain qualified filtrate, and impurity particle is tackled by filter bag.

30, can fuel tank storage

(1) selects equipment for use: the can fuel tank;

(2) purpose: grease transfer, sedimentation are filtered;

(3) require: trace metal material (equipment iron rust thing) does not have;

(4) reason: avoid human body is produced objectionable impurities, prevent the hidden danger of edible oil safety;

(5) standard: operating device liquid level 80%-85%;

(6) equipment principle: utilize the proportion of grease and metallics to carry out standing separation.

31, bottle embryo cleaning and sterilizing

(1) selects equipment for use: bottle washing machine;

(2) purpose: prevent from being subjected to outside contamination inside and outside bottle embryo;

(3) require: totally limpid, transparent inside and outside the bottle embryo;

(4) reason: avoid the interior infectious agent of bottle embryo to contact with grease;

(5) standard: operating hydraulic pressure power 0.35-0.40mpa;

(6) equipment principle: adopt high pressure recoil hydro-peening, the foreign material in the bottle wall in time break away to be fallen in the water tank.

32, oven dry germicidal lamp inspection

(1) selects equipment for use: tunnel drier, lamp inspection desk;

(2) purpose: drying removes moisture and sterilization in bottle embryo;

(3) require: the inside and outside no moisture of bottle embryo, free from extraneous odour;

(4) reason: avoid moisture and grease cross infection in bottle embryo;

(5) standard: 210-220 ℃ of control temperature;

(6) equipment principle: under the monitoring of system, bottle enters preheating zone, high-temperature sterilization district and the subcooling district of tunnel sterilizing oven successively with the conveying of conveying belt.

33, processed oil auto-filling

(1) selects equipment for use: dosing filling machine;

(2) purpose: be filled to liquid in the packaging vessel by control, volume measures accurately;

(3) require: can ± 3g precision;

(4) reason: avoid filling measurement error free;

(5) standard: working pressure 0.35-0.40mpa;

(6) equipment principle: the flow detection meter is equipped with in the filling machine position, and reaching needs to detect the volume that flow determines can.

34, oily nitrogen allotment

(1) selects equipment for use: the automatic gauge mixing tank;

(2) purpose: fill nitrogen can preservation and can reduce remaining space remaining oxygen in bottle embryo, oxidation takes place thereby the minimizing grease contacts with oxygen;

(3) require: nitrogen gas purity 99.99%;

(4) reason: the edible oil main component is glycerine and lipid acid, and is very easily oxidized and produce the phenomenon of becoming sour, and influence mouthfeel, destruction nutritive value, produces harmful composition;

(5) standard: 2-3 cube of control nitrogen flow;

(6) equipment principle: head space remaining oxygen in the bottle, row's oxygen and filling nitrogen mixing preparation is fresh-keeping.

35, decals coding automatically

(1) selects equipment for use: Labelling Machine, code jetting device;

(2) purpose: decals is by labeling device label to be sticked on the affixed object body automatically, and coding is carved product, sign, coding;

(3) require: label paper thickness≤25um, the long 3mm of label paper * more than the wide 10mm; Code jetting device requires: the clear unanimity of bottle embryo coding numeral;

(4) reason: improve the production production capacity, reduce cost of labor, functions such as the marking name of an article, specification, date manufactured, validity period, product batch number have very strong antiforge function, can hit fake and forged commodity, protection consumers in general's interests;

(5) standard: Labelling Machine standard: the bottle embryo surface does not allow the oil impregnate phenomenon, and the viscosity of label necessarily requires label to paste firmly.The code jetting device standard: it is clear that the writing that burns is carved in the laser coding, can not alter;

(6) equipment principle: the Labelling Machine principle: self has glue label, label peeling is sticked on again on the object that is pasted the code jetting device principle by non-setting adhesive: effectively for finished product mark its, the different information content such as date manufactured, validity period, product batch number.

36, capping, lamp inspection

(1) selects equipment for use: capsuling machine, lamp inspection desk;

(2) purpose: capping: guarantee the inspection of oil quality lamp: the qualified and substandard product of detection is differentiated in range estimation;

(3) require: capping: bottle cap sealing part screw thread is clear, not damaged bottle cap surface, and it is intact that bottle cap seals sealing; Lamp inspection: strict testing product quality;

(4) reason: sealing is preserved, and guarantees quality product.Prevent the substandard product market of going out;

(5) standard: liquid does not have water clock in the bottle embryo, detects bottle embryo and quality product;

(6) equipment principle: capping is to utilize the motor rotation to drive the base rising to hold out against the bottle cap top, cooperates the fore shaft device to finish the screw thread locking closure automatically, makes it reach perfect capping purpose; Bottle was under backlight illumination when lamp inspection was work, can clearly find out impurity and suspended substance in the post exercise bottle by range estimation, thereby can prevent the omission of substandard product.

37, packing joint sealing

(1) selects equipment for use: tape sealing machine;

(2) purpose: be convenient to transportation, piling, storage;

(3) require: BOPP adhesive tape adhesive tape size 48～72mm;

(4) reason: be convenient to product stream output;

(5) standard: tr bale packing, sealing, tight, forbidden to occur bubble phenomenon between adhesive tape and the carton, cohesiveness is intact;

(6) equipment principle: packaging products in boxes is sent into case sealer by conveyor chain (roller), and be submitted to defeated punch-out equipment structure, by pressing from both sides the two sides that the case belt is clamped carton, travel forward, before short tongue through pressing the tongue frame crooked automatically, the short tongue in back when carton enters the case sealer carrying roller, automatic rubberizing, carton moves forward, and presses the punch-out equipment structure to finish joint sealing shaping action simultaneously.

The above only is preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the technology of the present invention principle; can also make some improvement and modification, these improve and modification also should be considered as protection scope of the present invention.

Claims (5)

1. a road cold pressing process is characterized in that, may further comprise the steps successively, and pre-treatment, cold press, refining and storage package, wherein,

Pre-treatment: the tea seed of gathering is removed impurity, grit, stone and iron thing, sieve out the tea seed that goes mouldy, reduce the moisture in the tea seed, and after softening modified, shell benevolence is separated;

Cold press: tea benevolence is inserted cold press in the cold pressing expeller, and obtain crude oil through filtration with after filling nitrogen;

Refining: with the crude oil refining treatment, remove wherein phosphatide, colloidality impurity, free fatty acids, soap class, grease pigment, oxygen, stink substance and wax, and obtain refining oil;

Storage package: refining oil is filled nitrogen is stored to product tank, and through after processed oil filters the pollutent of the equipment of removing and pipeline, can to the bottle embryo of drying sterilization, subsequently through after oily nitrogen allotment, decals coding and the inspection of capping lamp, the packing joint sealing.

2. 37 road cold pressing process as claimed in claim 1 is characterized in that, that described pre-treatment comprises successively is selected, oven dry, dust removal of pneumatic separation, cleaning impurity elimination, go the stone deironing, softening modifiedly separate 7 steps with tea benevolence shell, wherein,

Selected: as to utilize the centrifugation of mechanical rotation and inclination, remove the impurity in the tea seed, sieve out the tea seed that goes mouldy, make the massfraction of impurities in the tea seed be less than or equal to 0.5%;

Oven dry: hot-air seasoning equipment, the moisture in the reduction tea seed is to being less than or equal to 10%;

Dust removal of pneumatic separation: the centrifugal force that utilizes swirling eddy to produce separates grit from the tea seed;

Cleaning impurity elimination: utilize the vibratory cleaning sieve, separate tea seed and cotton rope foreign material, reduce the massfraction of impurities in the tea seed to being less than or equal to 0.1%;

Go the stone deironing: utilize stone remover and magnetic separator, the stone and the iron thing that mix in the screening tea seed;

Softening modified: as to adopt the mode that steam is stifling and the layering of tea seed is fallen, softening modified tea seed;

Tea benevolence shell separates: the centrifugal inertial force that utilizes the decorticator high speed rotary to produce, broken material shell realize that the benevolence shell separates, and reach the massfraction that contains tea seed shell in the tea seed kernel and be no more than 15%, and the massfraction that contains tea seed kernel in the tea seed shell is no more than 1.5%.

3. 37 road cold pressing process as claimed in claim 1 is characterized in that, described cold press comprises that successively physics cold press, crude oil once filter, crude oil fills nitrogen and 4 steps of crude oil secondary filtration, wherein,

Physics cold press: adopt duplex oil press zhai extruding squeezing tea seed kernel, and make the massfraction of Residual oil in the tea seed kernel oil cake after the squeezing be no more than 4%;

Crude oil once filters: adopt the crude oil after stainless steel filtering net filters cold press, and make the massfraction of impurity in the crude oil not be higher than 0.3%;

Crude oil fills nitrogen: the crude oil after will filtering charges into nitrogen;

Crude oil secondary filtration: adopt the deep bed filter filtered crude oil, and make the massfraction of impurity in the crude oil not be higher than 0.1%.

4. 37 road cold pressing process as claimed in claim 1, it is characterized in that, described refining comprises successively comes unstuck, a depickling, takes off soap, washing, dehydration, drying and dehydrating, decolouring, decolorization filtering, deoxidation, secondary depickling, deodorization, dewaxing, wax filtration, degreasing and solid fat filters 15 steps, wherein

Come unstuck: add degumming agent, remove phosphatide and colloidality impurity in the tea-seed oil;

A depickling: add food grade alkali lye, remove free lipid acid in the tea-seed oil, reduce the acid number (koH)/(mg/g) of tea-seed oil to being less than or equal to 1.0%;

Take off soap: the centrifugal force that utilizes the centrifuge drum high speed rotating to produce, separate tea-seed oil and soap class, and the acid number (koH)/(mg/g) of reduction tea-seed oil is to being less than or equal to 0.8%;

Washing: tea-seed oil is mixed stirring with water, adsorb remaining soap class;

Dehydration: the centrifugal force that utilizes the centrifuge drum high speed rotating to produce, separate tea-seed oil and water;

Drying and dehydrating: heating under vacuum is removed residual moisture in the tea-seed oil;

Decolouring: utilize atlapulgite as sorbent material, absorption and remove pigment and other impurity in the tea-seed oil under vacuum condition;

Decolorization filtering: stainless steel filtering net filters tea-seed oil to remove carclazyte;

Deoxidation: remove the oxygen in the tea-seed oil under the vacuum condition;

The secondary depickling: under the high vacuum condition, steam feeds tea-seed oil and removes FFA, unsaponifiables and odoring substance so that steam carries, and the acid number (koH)/(mg/g) of reduction tea-seed oil is to being less than or equal to 0.5%;

Deodorization: under the high temperature condition of negative pressure, steam feeds tea-seed oil so that steam carries the stink substance of removing in the tea-seed oil;

Dewaxing: tea-seed oil is inserted maturator, and crystallization is at least 48 hours under the cold condition, separates out the wax in the tea-seed oil;

Wax is filtered: use and unload the wax filter, separate tea-seed oil and wax;

Degreasing: adopt winterization crystallization and winterization growing the grain equipment, remove wax fat and solid fat in the tea-seed oil;

Solid fat filters: use the winterization filter, separate tea-seed oil and solid fat, and obtain processed oil.

5. 37 road cold pressing process as claimed in claim 1, it is characterized in that, described storage package comprises successively that processed oil annotates that nitrogen, processed oil storage tank stores, processed oil filter, the storage of can fuel tank, bottle embryo cleaning and sterilizing, the inspection of oven dry germicidal lamp, processed oil auto-filling, the allotment of oily nitrogen, decals coding automatically, the inspection of capping lamp and 11 steps of joint sealing of packing, wherein

Processed oil is annotated nitrogen: nitrogen injection in processed oil;

Processed oil storage tank stores: processed oil is pumped into the processed oil storage tank stores;

Processed oil filters: use continuous deep bed filter, the impurity of pipeline transportation and storage process in the filtration processed oil;

Can fuel tank storage: processed oil is pumped into the can fuel tank store;

Bottle embryo cleaning and sterilizing: to the bottle embryo cleaning and sterilizing of processed oil can;

Oven dry germicidal lamp inspection: to the bottle embryo oven dry sterilization of processed oil can, and finish the lamp inspection;

The processed oil auto-filling: with the processed oil auto-filling to the bottle embryo in;

Oil nitrogen allotment: with air emptying residual in the bottle embryo, and charge into nitrogen;

Automatically decals coding: label is sticked on bottle embryo automatically;

Capping lamp inspection: to the capping of bottle embryo, and detect substandard product;

Packing joint sealing: with the packing of the processed oil after can joint sealing.

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