CN106191323A - A kind of method for manufacturing sugar automatically - Google Patents
A kind of method for manufacturing sugar automatically Download PDFInfo
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- CN106191323A CN106191323A CN201610670079.8A CN201610670079A CN106191323A CN 106191323 A CN106191323 A CN 106191323A CN 201610670079 A CN201610670079 A CN 201610670079A CN 106191323 A CN106191323 A CN 106191323A
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- valve
- crystallizer
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- liquid level
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- C—CHEMISTRY; METALLURGY
- C13—SUGAR INDUSTRY
- C13B—PRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
- C13B30/00—Crystallisation; Crystallising apparatus; Separating crystals from mother liquors ; Evaporating or boiling sugar juice
- C13B30/002—Evaporating or boiling sugar juice
-
- C—CHEMISTRY; METALLURGY
- C13—SUGAR INDUSTRY
- C13B—PRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
- C13B25/00—Evaporators or boiling pans specially adapted for sugar juices; Evaporating or boiling sugar juices
- C13B25/06—Evaporators or boiling pans specially adapted for sugar juices; Evaporating or boiling sugar juices combined with measuring instruments for effecting control of the process
-
- C—CHEMISTRY; METALLURGY
- C13—SUGAR INDUSTRY
- C13B—PRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
- C13B30/00—Crystallisation; Crystallising apparatus; Separating crystals from mother liquors ; Evaporating or boiling sugar juice
- C13B30/02—Crystallisation; Crystallising apparatus
- C13B30/022—Continuous processes, apparatus therefor
- C13B30/025—Continuous processes, apparatus therefor combined with measuring instruments for effecting control of the process
-
- C—CHEMISTRY; METALLURGY
- C13—SUGAR INDUSTRY
- C13B—PRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
- C13B30/00—Crystallisation; Crystallising apparatus; Separating crystals from mother liquors ; Evaporating or boiling sugar juice
- C13B30/02—Crystallisation; Crystallising apparatus
- C13B30/026—Discontinuous processes or apparatus therefor
- C13B30/027—Discontinuous processes or apparatus therefor combined with measuring instruments for effecting control of the process
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- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Confectionery (AREA)
Abstract
The invention discloses a kind of method for manufacturing sugar automatically, including rule of thumb working out the process curve boiling sugared relevant parameter, crystallizer is initialized；Crystallizer is carried out evacuation；When the setting value that the level value of standard syrup can feeds more than permission, unlatching standard syrup inlet valve and charging switch valve, crystallizer is inputted standard syrup, when the liquid level in crystallizer reaches charging liquid level limit value, standard of closure syrup inlet valve and charging switch valve；When the brix value in crystallizer reaches to throw powder brix, carry out throwing powder, reach predetermined standard time, complete to throw powder, carry out die bond, feed supplement, then carry out inspissation, standard of closure syrup inlet valve and charging regulation valve, until the brix value of material reaches predetermined brix value, then carry out putting tank.Using and existing boil sugar experience set up model, processing technology curve, set the technological parameter of relevant device different phase according to process curve, automatically boil sugar, strong adaptability, efficiency is high.
Description
Technical field
The present invention relates to sugaring field, particularly relate to a kind of method for manufacturing sugar automatically.
Background technology
The key link in Zhu Tangshi sugar enterprise production process, the domestic artificial experience that is the most all dependent on is entered
Row manual operation, the quality of white sugar is affected fairly obvious by anthropic factor, the operator of different proficiency levels under the same terms
Member is cooked sugared quality also difference.Secondly because boil the difference of sugar level, usually can not realize obtaining with relatively low energy consumption
Must be higher boil sugar efficiency and best white sugar quality.
Improve the quality of sugar: the regulation of the prior art different industry controls by arranging carries out simple function to equipment and divides
Work, the mode that manual operation is intervened.Although can realize to a certain extent, but the differing greatly of links, standardization journey
Spend relatively low.
Summary of the invention
It is an object of the invention to provide automatic method for manufacturing sugar, decreased manual intervention, improve the quality of sugar, shorten system
The sugar time, reduce energy consumption.
For solving above-mentioned technical problem, embodiments provide a kind of method for manufacturing sugar automatically, including:
Step 1, rule of thumb works out the process curve of the relevant parameter boiling sugar, and sets crystallization according to described process curve
Technological parameter in tank, initializes described crystallizer, carries out resetting also by all relevant devices in described crystallizer
Close valve, it is judged that all described valve closings and after not having fault, complete to initialize；
Step 2, opens vacuum switch valve, and described crystallizer is carried out evacuation, treats that the vacuum in described crystallizer reaches
After vacuum stages in described process curve opens regulation valve limit value, then open vacuum breaker, and by described vacuum conditions
Valve is set as auto state, when the vacuum in described crystallizer arrives setting value or described vacuum breaker standard-sized sheet, closes
Described vacuum switch valve, completes the evacuation to described crystallizer；
Step 3, during the setting value that the level value at standard syrup can feeds more than permission, enters the superfast loading stage, opens
Opening standard syrup inlet valve and charging switch valve, described crystallizer is inputted standard syrup, the liquid level in described crystallizer reaches
During to charging liquid level limit value, close described standard syrup inlet valve and described charging switch valve；
Step 4, when the brix value in described crystallizer reaches to throw powder brix, carries out described crystallizer throwing powder, is seeing
Observing graining and reach predetermined standard time, complete to throw powder, the entrance die bond stage carries out die bond；
Step 5, enters feed phase after completing the described die bond stage, opens described standard syrup inlet valve, open charging
Regulation valve, is set to the liquid level automatically according to different phase by described charging regulation valve, steam control valve, described vacuum breaker
Change is changed, to ensure the supersaturation coefficient in the preset range in described crystallizer, the liquid in described crystallizer
When position arrives maximum feed supplement liquid level, feed phase terminates, and enters inspissation stage inspissation, closes described standard syrup inlet valve and institute
State charging regulation valve, until the brix value of material reaches predetermined brix value, then carry out putting tank.
Wherein, the described process curve rule of thumb working out the relevant parameter boiling sugar, and set according to described process curve
Technological parameter in crystallizer, including:
Crystallization principle according to sugar sets up model, combines and boils sugar experience and preset the process curve boiling sugared relevant parameter,
And boiling the different phase of sugar according to the liquid level in the described process curve described crystallizer of setting, steam pressure, brix, vacuum
Parameter value.
Wherein, the described level value at standard syrup can, more than when allowing the setting value fed, enters the superfast loading stage,
Unlatching standard syrup inlet valve and charging switch valve, input standard syrup, the liquid level in described crystallizer to described crystallizer
When reaching charging liquid level limit value, close described standard syrup inlet valve and described charging switch valve, including:
After having fed for the first time, if the liquid level of described crystallizer subtracts three less than described charging liquid level limit value, carry out the
Secondary feeds.
Wherein, also include between described superfast loading and described throwing powder stage:
To described crystallizer feed after, described steam control valve is set to auto state, described steam control valve along with
Liquid level change is according to the folding limit function change of preassigned functional device.
Wherein, also include in the described superfast loading stage: when the liquid level in described crystallizer starts more than agitator liquid level
During restriction, start described agitator and be stirred.
Wherein, throw after powder described completing, the described entrance die bond stage carry out die bond before also include:
When finding pseudo-brilliant, open described standard syrup switch injection standard syrup or open hot-water switch and inject hot water and disappear
Except described pseudo-brilliant.
Wherein, also include: control described steam cock valve and the described vacuum switch valve vapour pressure in the described die bond stage
With vacuum be described in carry out throw powder time vapour pressure and vacuum values.
Wherein, put tank described in include: close described vacuum switch valve, close described steam cock valve, stop described machine and stir
Mix device, open vacuum breaker steam valve, discharge valve carries out discharging.
Wherein, described put tank after, also include that cleaning of evaporator, described cleaning of evaporator include:
Open described vacuum breaker steam valve and vapour washes switch valve, charging regulation valve is reached 50%, when in described crystallizer
Temperature when reaching cleaning of evaporator temperature limit, cleaning of evaporator terminates, close described vacuum breaker steam valve, described vapour washes switch valve and described enter
Material regulation valve.
The automatic method for manufacturing sugar that the embodiment of the present invention provides, compared with prior art, has the advantage that
The automatic method for manufacturing sugar that this practical embodiment provides, including:
Step 1, rule of thumb works out the process curve of the relevant parameter boiling sugar, and sets crystallization according to described process curve
Technological parameter in tank, initializes described crystallizer, carries out resetting also by all relevant devices in described crystallizer
Close valve, it is judged that all described valve closings and after not having fault, complete to initialize；
Step 2, opens vacuum switch valve, and described crystallizer is carried out evacuation, treats that the vacuum in described crystallizer reaches
After vacuum stages in described process curve opens regulation valve limit value, then open vacuum breaker, and by described vacuum conditions
Valve is set as auto state, when the vacuum in described crystallizer arrives setting value or described vacuum breaker standard-sized sheet, closes
Described vacuum switch valve, completes the evacuation to described crystallizer；
Step 3, during the setting value that the level value at standard syrup can feeds more than permission, enters the superfast loading stage, opens
Opening standard syrup inlet valve and charging switch valve, described crystallizer is inputted standard syrup, the liquid level in described crystallizer reaches
During to charging liquid level limit value, close described standard syrup inlet valve and described charging switch valve；
Step 4, when the brix value in described crystallizer reaches to throw powder brix, carries out described crystallizer throwing powder, is seeing
Observing graining and reach predetermined standard time, complete to throw powder, the entrance die bond stage carries out die bond；
Step 5, enters feed phase after completing the described die bond stage, opens described standard syrup inlet valve, open charging
Regulation valve, is set to the liquid level automatically according to different phase by described charging regulation valve, steam control valve, described vacuum breaker
Change is changed, to ensure the supersaturation coefficient in the preset range in described crystallizer, the liquid in described crystallizer
When position arrives maximum feed supplement liquid level, feed phase terminates, and enters inspissation stage inspissation, closes described standard syrup inlet valve and institute
State charging regulation valve, until the brix value of material reaches predetermined brix value, then carry out putting tank.
Described automatic method for manufacturing sugar, uses existing sugar experience set up model, processing technology curve of boiling, bent according to technique
Line sets the technological parameter of relevant device different phase, automatically boils sugar, reduces manual intervention, improves the quality of sugar, suitable
For the automatic sugar boiling technology of the sugar enterprises such as refined sugar, beet sugar, cane suger, use the mode of evacuation, shorten and boil soup
Time, reduce the loss of sugar, reduce energy consumption；Using and automatically boil sugar, equipment runs according to preliminary setting parameter, reduces
Labor intensity, reduces human cost, improves production efficiency.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is the present invention
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to
These accompanying drawings obtain other accompanying drawing.
A kind of steps flow chart in the detailed description of the invention of the automatic method for manufacturing sugar of Radix Betae that Fig. 1 provides for the embodiment of the present invention
Schematic diagram.
Detailed description of the invention
The most as described in the background section, in existing sugar boiling technology, all it is dependent on artificial experience and is operated manually, people
Affecting fairly obvious for factor on the quality of white sugar, under the same terms, the operator of different proficiency levels are cooked sugared
Quality also has difference, or the regulation of the different industry controls by arranging carries out simple function allocation to equipment, and manual operation is done
Pre-mode.Although can realize to a certain extent, but the differing greatly of links, standardization level is relatively low.
Based on this, embodiments provide a kind of method for manufacturing sugar automatically, including:
Step 1, rule of thumb works out the process curve of the relevant parameter boiling sugar, and sets crystallization according to described process curve
Technological parameter in tank, initializes described crystallizer, carries out resetting also by all relevant devices in described crystallizer
Close valve, it is judged that all described valve closings and after not having fault, complete to initialize；
Step 2, opens vacuum switch valve, and described crystallizer is carried out evacuation, treats that the vacuum in described crystallizer reaches
After vacuum stages in described process curve opens regulation valve limit value, then open vacuum breaker, and by described vacuum conditions
Valve is set as auto state, when the vacuum in described crystallizer arrives setting value or described vacuum breaker standard-sized sheet, closes
Described vacuum switch valve, completes the evacuation to described crystallizer；
Step 3, during the setting value that the level value at standard syrup can feeds more than permission, enters the superfast loading stage, opens
Opening standard syrup inlet valve and charging switch valve, described crystallizer is inputted standard syrup, the liquid level in described crystallizer reaches
During to charging liquid level limit value, close described standard syrup inlet valve and described charging switch valve；
Step 4, when the brix value in described crystallizer reaches to throw powder brix, carries out described crystallizer throwing powder, is seeing
Observing graining and reach predetermined standard time, complete to throw powder, the entrance die bond stage carries out die bond；
Step 5, enters feed phase after completing the described die bond stage, opens described standard syrup inlet valve, open charging
Regulation valve, is set to the liquid level automatically according to different phase by described charging regulation valve, steam control valve, described vacuum breaker
Change is changed, to ensure the supersaturation coefficient in the preset range in described crystallizer, the liquid in described crystallizer
When position arrives maximum feed supplement liquid level, feed phase terminates, and enters inspissation stage inspissation, closes described standard syrup inlet valve and institute
State charging regulation valve, until the brix value of material reaches predetermined brix value, then carry out putting tank.
In sum, the embodiment of the present invention provide automatic method for manufacturing sugar, use existing boil sugar experience and set up model,
Processing technology curve, sets the technological parameter of relevant device different phase according to process curve, automatically boils sugar, reduces artificial
Intervene, improve the quality of sugar, it is adaptable to the automatic sugar boiling technology of the sugar enterprises such as refined sugar, beet sugar, cane suger, employing is taken out
The mode of vacuum, shortens and boils the soup time, reduces the loss of sugar, reduces energy consumption；Using and automatically boil sugar, equipment is according to pre-
First setup parameter runs, and reduces labor intensity, reduces human cost, improves production efficiency.
Understandable, below in conjunction with the accompanying drawings to the present invention for enabling the above-mentioned purpose of the present invention, feature and advantage to become apparent from
Detailed description of the invention be described in detail.
Elaborate detail in the following description so that fully understanding the present invention.But the present invention can with multiple not
Being same as alternate manner described here to implement, those skilled in the art can do class in the case of intension of the present invention
Like promoting.Therefore the present invention is not limited by following public being embodied as.
Refer to figure, the step of a kind of detailed description of the invention of the automatic method for manufacturing sugar that Fig. 1 provides for the embodiment of the present invention
Schematic flow sheet.
In a kind of detailed description of the invention, described automatic method for manufacturing sugar, including:
Step 1, rule of thumb works out the process curve of the relevant parameter boiling sugar, and sets crystallization according to described process curve
Technological parameter in tank, initializes described crystallizer, carries out resetting also by all relevant devices in described crystallizer
Close valve, it is judged that all described valve closings and after not having fault, complete to initialize；
Step 2, opens vacuum switch valve, and described crystallizer is carried out evacuation, treats that the vacuum in described crystallizer reaches
After vacuum stages in described process curve opens regulation valve limit value, then open vacuum breaker, and by described vacuum conditions
Valve is set as auto state, when the vacuum in described crystallizer arrives setting value or described vacuum breaker standard-sized sheet, closes
Described vacuum switch valve, completes the evacuation to described crystallizer；
Step 3, during the setting value that the level value at standard syrup can feeds more than permission, enters the superfast loading stage, opens
Opening standard syrup inlet valve and charging switch valve, described crystallizer is inputted standard syrup, the liquid level in described crystallizer reaches
During to charging liquid level limit value, close described standard syrup inlet valve and described charging switch valve；
Step 4, when the brix value in described crystallizer reaches to throw powder brix, carries out described crystallizer throwing powder, is seeing
Observing graining and reach predetermined standard time, complete to throw powder, the entrance die bond stage carries out die bond；
Step 5, enters feed phase after completing the described die bond stage, opens described standard syrup inlet valve, open charging
Regulation valve, is set to the liquid level automatically according to different phase by described charging regulation valve, steam control valve, described vacuum breaker
Change is changed, to ensure the supersaturation coefficient in the preset range in described crystallizer, the liquid in described crystallizer
When position arrives maximum feed supplement liquid level, feed phase terminates, and enters inspissation stage inspissation, closes described standard syrup inlet valve and institute
State charging regulation valve, until the brix value of material reaches predetermined brix value, then carry out putting tank.
Described automatic method for manufacturing sugar, uses existing sugar experience set up model, processing technology curve of boiling, bent according to technique
Line sets the technological parameter of relevant device different phase, automatically boils sugar, reduces manual intervention, improves the quality of sugar, suitable
For the automatic sugar boiling technology of the sugar enterprises such as refined sugar, beet sugar, cane suger, use the mode of evacuation, shorten and boil soup
Time, reduce the loss of sugar, reduce energy consumption；Using and automatically boil sugar, equipment runs according to preliminary setting parameter, reduces
Labor intensity, reduces human cost, improves production efficiency.
The below explanation of the proper noun for relating in invention:
Saturated solution, refers at a certain temperature, and when can not dissolve more polysaccharide in solution, this solution is called saturated molten
Liquid.The rising of solubility with temperature of sugar and increase.For a sugar liquid, can there be three kinds of states: unsaturated, saturated, satiety
With.
Saturation coefficient, refers to that the sugared dissolubility of impure sugar juice is to the dissolubility ratio of pure sugar juice under synthermal.
Supersaturated solution: saturated solution cooling or the evaporation of sugar are not had crystallization, and in this thing solution, sugar is molten
Solution amount is more than the dissolubility under equality of temperature, the most referred to as supersaturation.
Supersaturation coefficient: in supersaturated sugar solution contained sucrose amount with synthermal under in saturated sugar liquid the ratio of sucrose amount be referred to as
Saturation coefficient.
Brix: be called for short BX, refers to that the weight of solable matter contained in solution accounts for the percentage ratio of gross weight.For impure
Sugar liquid, represents the weight percent of soluble solid in solution the most approx.Owing to existing instrument is difficult in crystallization process
Measure degree of supersaturation, therefore the method measured by brix instrument in the present invention reflects degree of supersaturation indirectly.
Pseudo-brilliant, refer to atomic thin newborn sucrose crystal, also known as " antiquated sand ".It is to boiling sugar and purging process and product matter
Amount has the biggest harmful effect, is to boil sugar operation to control bad and one of most significant problems of producing.The pseudo-brilliant reason generated
Being many, when automatically boiling sugar, most common generation puppet crystalline substance is when throwing powder, owing to when throwing powder, vacuum or vapour pressure can not
The local variation of rule, stimulates and generates pseudo-crystalline substance.
Viscous crystalline substance, is to be bonded together by the single crystal of more than three, constitutes irregular overlapping crystal form, also known as Flos Mume
Crystalline substance brilliant, folded.Hide molasses due to viscous between crystal grain, reduce product quality, and decrease the effective absorbing area of crystal.Viscous crystalline substance
Be typically crystal compared with young weak, mother solution viscosity is big, convection current bad when produce.
In the present invention, the setting value of brix sets according to Production requirement, and it is to set relevant according to different liquid levels
Brix, function utilize sugar degree of supersaturation principle model, whole curve can change according to the difference of tinning liquid level.
The described process curve rule of thumb working out the relevant parameter boiling sugar, and set crystallizer according to described process curve
Interior technological parameter, including:
Crystallization principle according to sugar sets up model, combines and boils sugar experience and preset the process curve boiling sugared relevant parameter,
And boiling the different phase of sugar according to the liquid level in the described process curve described crystallizer of setting, steam pressure, brix, vacuum
Parameter value.
Crystallizer in the present invention is equivalent to a single effect evaporator, and the purpose of evacuation is to reduce evaporating temperature, acceleration
Material flows in pressurized canister, reach the raising of production efficiency improving the speed of evaporation.
The step of concrete evacuation is: after entering vacuum step, be first turned on vacuum switch valve, when in vacuum
After being raised to vacuum stages unlatching regulation valve limit value, then opening vacuum breaker, the state now regulating valve is auto state.Take seriously
When reciprocal of duty cycle reaches setting value or vacuum conditions valve standard-sized sheet, it is believed that vacuum meets demand, now, vacuum switch valve is closed
(owing to the caliber of the vacuum breaker of installation is 4～5 times of switch valve caliber, need first to open switch valve, be then turned on regulation
Valve, so operation is to for the protection to container, make the vacuum in container rise smoothly), this step terminates
Entering next step, typically have and have prompting on display floater or guidance panel, prompting evacuation is complete, and can enter
Next step operation, operator can click on confirmation, the program of the superfast loading that then brings into operation and step.
The superfast loading stage mainly make the tank of crystallizer in liquid level reach as soon as possible to throw the liquid level needed for powder.At fast quick-mounting
In the stage of material, can carry out holding the action of steam and turn on agitator simultaneously.
After entering the superfast loading stage, first can judge the level value in crystallizer, when level value is more than allowing charging
During setting value, program can automatically turn on standard syrup inlet valve, charging switch valve；When liquid level arrives charging liquid level limit value, close
Close standard syrup inlet valve, charging switch valve.
In the present invention, the process of sugaring is continuous print, by standard syrup can, raw material is made standard syrup, then will
Standard syrup exports crystallizer and crystallizes, and becomes white sugar.
Owing to can hold steam during charging simultaneously, it may appear that the situation of concentration, after having fed for the first time, crystallization
When the liquid level of tank subtracts three less than charging liquid level limit value (the general liquid level throwing powder can be in the range of 3%), can again perform quickly
Charging schedule (owing to the brix of charging is different, the situation causing charging is the most different, typically mends once to twice), circulate into
OK.
That is exist, open described standard syrup inlet valve and charging switch valve, and the liquid level in described crystallizer
When reaching charging liquid level limit value, close described standard syrup inlet valve and charging switch valve, during feeding, it is possible to
Will not once feed and reach described charging liquid level limit value and subtract three, at this moment need to carry out secondary charging, i.e. after having fed for the first time,
If the liquid level of described crystallizer subtracts three less than described charging liquid level limit value, carry out second time and feed.
Charging liquid level limit value subtracts three, refers to that charging liquid level limit value deducts self 3 percent.
After entering the superfast loading stage, in order to save concentration time, steam control valve program can make it be set to auto state,
The setting value of the program now regulating valve can be changed according to the change of liquid level, in lower floor by standard feature set in advance
Block polygronal function realizes.
When heating concentrates, steam is from triple effect vapour, quadruple effect vapour, exhaust steam (general one-out-three during use), by operator people
Work selects to determine to use that steam.When after the order receiving out steam and when control valve opening is more than 5, automatically turn on (first
Drive jacket steam regulation valve, then drive jacket steam switch valve in order to protection equipment).
Present crystallizer is generally fitted with agitator, owing to using mechanical cycles can fully and uniformly be distributed raw material,
Making massecuite energy abundant exercise, during heating, heat energy is evenly distributed, and variations in temperature is less, starts to terminating maintenance relatively high from boiling sugar
Circulation rate.
Meanwhile, if brix instrument in crystallizer abnormal maybe can not reflect brix change in tank whole process time, permissible
The electric current instruction relying on motor carrys out controlled concentration, because brix change in tank, illustrates that the concentration of liquid changes, and agitator stirs
Mix the resistance run into change, the power of agitator and also being changed by electric current, thus can give operator
Judgement more provide a foundation.
The control of agitator is relatively simple, i.e. controls its start and stop.At loading stage, when in tank, liquid level is more than agitator liquid level
(typically presetting when starting) when starting limit value, agitator starts.
Namely also include in the described superfast loading stage: when the liquid level in described crystallizer starts limit more than agitator liquid level
Time processed, start described agitator and be stirred.
Along with completing of charging, the saturation of the solution in crystallizer is rising, and needs to carry out when exceeding saturated throwing powder
Graining, when making garden beet as raw material, brix now is about 83BX, due to the precision of on-the-spot instrument and product
Difference, is rule of thumb judged by operator the opportunity throwing powder.
Graining generally has three kinds of methods, it may be assumed that natural graining, stimulation graining, holocrystalline kind graining.The first two plants method operator
Can not control produced amount of crystals, currently acquired good crystal seed the best way is that full crystal seed method i.e. throws powder method.
Throwing powder method is can to grow up according to crystal existing in Metastable zone and not have new crystal to generate this principle and enter
Row operation, thus can determine according to the size of tank body and the target boiling sugar and throw the seed slurry that powder needs every time.According to existing
The situation of field device, crystal seed both can join in crystallizer in automatic kind paste mode, it is also possible to manually adds.
The rate-determining steps in this stage is as follows: when entering program step, the display screen of control panel can be pointed out in concentration, be worked as knot
When in brilliant tank, brix value reduces steam pressure brix value, the setting value of steam control valve can decrease and (reduce steam
Purpose is: now already at being maybe in Metastable zone in tank, when throwing powder, due to the suction of vacuum, it is to avoid pseudo-brilliant big
Amount produces), in now continuing in tank to concentrate, when brix value reaches to throw powder brix, display screen can be pointed out to be needed to throw powder, now grasps
Work person can carry out powder according to on-site actual situations and (automatically throw powder as used, operator can be made to carry out on the control panel really
Recognize), after throwing powder completes, operator can observe the practical situation at scene and still stop the actions such as brilliant the need of again throwing powder, to grasping
As member observe graining fine time, we have confirmed that throwing powder complete, enter the die bond stage.
Throw after powder described completing, the described entrance die bond stage carry out die bond before also include:
When finding pseudo-brilliant, open described standard syrup switch injection standard syrup or open hot-water switch and inject hot water and disappear
Except described pseudo-brilliant, i.e. only crystalline substance.
Only crystalline substance refers to throwing after powder terminates, due to factor outside etc. when throwing powder stimulate produce pseudo-brilliant, by adding standard syrup
Or the method for hot water eliminates till pseudo-brilliant process becomes brilliant.Only brilliant produce due to unexpected, if throw the brix of powder, time
Machine properly (needs the experience of operative employee and on-the-spot experiment repeatedly), and only crystalline substance is avoidable.
Owing to this programme is to use manually to throw powder, so only crystalline substance is that operative employee is according in boiling pan after throwing powder terminates
Practical situation carries out hand switch standard syrup inlet valve (or hot water valve), charging switch valve.
Die bond typically refers to next step operation after throwing powder.Because now crystal is the most tiny, the most distant, sugar
Divide the distance diffusing to plane of crystal longer, if moisture evaporation is too fast, cause local supersaturation rate too high, it is easy to produce puppet
Brilliant.At this moment target is to be brought up by crystal before massecuite volume increases, and occupies the space that original mother solution occupies.Tank planted agent is abundant
Convection current, makes crystal can constantly touch this stage of fresh mother solution and should avoid strong evaporation, and steam supply is can keep tank
Interior normal circulation.
The control in die bond stage is as follows: steam and vacuum keep certain ratio, vacuum now and steam to setting value
Setting value keep throwing the setting value dropping steam before powder.Until crystallizer keeps the die bond time to enter next step after arriving
I.e. feed phase.
After feed phase refers to that new massecuite achieves seed, seed tighten up after after i.e. die bond terminates, with that will be by
Crystal supports the size to product requirement, and this process is also referred to as growing the grain.
Growing the grain is a very important step, because this process influence quality and the quality of finished product.Emphasis is standard syrup
Continuously in tank, to maintain stable and supersaturation coefficient.Also it is to control to be a more complicated link, i.e. by certainly
Dynamic control, during charging, the brix of sugar in vacuum, steam pressure, tank, etc. technical conditions control stable, make water
Part evaporation separates out the two velocity balance with sugar.
The control of feed phase is as follows: at feed phase, opens standard syrup inlet valve, opens charging regulation valve, now
Charging regulation valve, steam control valve, vacuum breaker all put into automatically, steam control valve, the setting value meeting of vacuum breaker
Liquid level change according to different phase is changed, and is realized by polygronal function set in advance, and charging regulation valve is in fact
Being the brix in controlling tank, i.e. different liquid levels need different brix to ensure the quality of product.Mend when liquid level arrives maximum
During feed liquid position, feed supplement process terminates, and enters the inspissation stage.
Inspissation refers to last concentration, i.e. when massecuite volume has reached the fully loaded ability of crystallizer, stop feed into
The concentration that row is last.Now, program can be automatically switched off standard syrup inlet valve, charging regulation valve.After entering the inspissation stage, brix
The rising that value meeting is slower.
When the inspissation stage, put the brix value of tank when brix value can rise towards, at this moment, the display screen meeting of control panel
Prompting can put tank, and operator trade union rule of thumb judges whether concentration reaches, and as reached, clicks on confirmation and puts tank button, enter
Row puts tank.
Put tank to include: close vacuum switch valve, steam off valve (steam cock valve and steam control valve), stop stirring
Device, opens vacuum breaker steam valve (in discharge process, this valve can carry out open and close according to pressure inside the tank is intermittent), discharge valve
Carry out discharging.
After completing to unload tank operation, also having some massecuites and stick in tank body, these massecuites can hinder rising of next time
Brilliant operation, it is therefore desirable to carry out cleaning of evaporator.
After cleaning of evaporator refers to discharging, the massecuite sticking to top tank structure must completely remove before next tank is opened and boiled, as except not doing
Only, these crystal can hinder the graining of lower tank to operate.The method of cleaning of evaporator is to melt away these by heating in allowing steam enter tank
Crystal.
Also including cleaning of evaporator after putting tank, described cleaning of evaporator includes:
Opening described vacuum breaker steam valve and vapour washes switch valve, charging regulation valve is reached 50% (can be according to practical situation
It is set), (three thermal resistances are installed, it is judged that depend on tank when the temperature in described crystallizer reaches cleaning of evaporator temperature limit
Reaching according to for two temperature, owing to chuck heating has hysteresis quality, therefore last temperature can be more than design temperature), cleaning of evaporator terminates, and closes
Close described vacuum breaker steam valve, described vapour washes switch valve and described charging regulation valve.
In sum, the embodiment of the present invention provide automatically boil sugar method, use existing boil sugar experience and set up model,
Processing technology curve, sets the technological parameter of relevant device different phase according to process curve, automatically boils sugar, reduces artificial
Intervene, improve the quality of sugar, it is adaptable to the automatic sugar boiling technology of the sugar enterprises such as refined sugar, beet sugar, cane suger, employing is taken out
The mode of vacuum, shortens and boils the soup time, reduces the loss of sugar, reduces energy consumption；Using and automatically boil sugar, equipment is according to pre-
First setup parameter runs, and reduces labor intensity, reduces human cost, improves production efficiency.
Above sugar method of automatically boiling provided by the present invention is described in detail.Specific case pair used herein
Principle and the embodiment of the present invention are set forth, the method that the explanation of above example is only intended to help to understand the present invention
And core concept.It should be pointed out that, for those skilled in the art, before without departing from the principle of the invention
Putting, it is also possible to the present invention is carried out some improvement and modification, these improve and modify the guarantor also falling into the claims in the present invention
In the range of protecting.
Claims (9)
1. an automatic method for manufacturing sugar, it is characterised in that including:
Step 1, rule of thumb works out the process curve of the relevant parameter boiling sugar, and sets in crystallizer according to described process curve
Technological parameter, described crystallizer is initialized, all relevant devices in described crystallizer is resetted and close
Valve, it is judged that all described valve closings and after not having fault, completes to initialize；
Step 2, opens vacuum switch valve, and described crystallizer is carried out evacuation, treats that the vacuum in described crystallizer reaches institute
After stating the vacuum stages unlatching regulation valve limit value in process curve, then open vacuum breaker, and described vacuum breaker is set
It is set to auto state, when the vacuum in described crystallizer arrives setting value or described vacuum breaker standard-sized sheet, closes described
Vacuum switch valve, completes the evacuation to described crystallizer；
Step 3, during the setting value that the level value at standard syrup can feeds more than permission, enters the superfast loading stage, opens mark
Quasi-syrup inlet valve and charging switch valve, input standard syrup to described crystallizer, and the liquid level in described crystallizer reaches dress
During the limit value of feed liquid position, close described standard syrup inlet valve and described charging switch valve；
Step 4, when the brix value in described crystallizer reaches to throw powder brix, carries out described crystallizer throwing powder, is observing
Graining reaches predetermined standard time, completes to throw powder, and the entrance die bond stage carries out die bond；
Step 5, enters feed phase after completing the described die bond stage, opens described standard syrup inlet valve, opens charging regulation
Valve, is set to change automatically according to the liquid level of different phase by described charging regulation valve, steam control valve, described vacuum breaker
It is changed, to ensure the supersaturation coefficient in the preset range in described crystallizer, when the liquid level in described crystallizer arrives
When reaching maximum feed supplement liquid level, feed phase terminates, and enters inspissation stage inspissation, close described standard syrup inlet valve and described enter
Material regulation valve, until the brix value of material reaches predetermined brix value, then carries out putting tank.
2. the automatic method for manufacturing sugar of Radix Betae as claimed in claim 1, it is characterised in that described rule of thumb formulation boils the relevant of sugar
The process curve of parameter, and set the technological parameter in crystallizer according to described process curve, including:
Crystallization principle according to sugar sets up model, combines and boils sugar experience and preset the process curve boiling sugared relevant parameter, and root
The ginseng of sugared different phase is being boiled according to the liquid level in the described process curve described crystallizer of setting, steam pressure, brix, vacuum
Numerical value.
3. the automatic method for manufacturing sugar of Radix Betae as claimed in claim 2, it is characterised in that the described level value at standard syrup can is big
In time allowing the setting value of charging, enter the superfast loading stage, open standard syrup inlet valve and charging switch valve, to described knot
Brilliant tank input standard syrup, when the liquid level in described crystallizer reaches charging liquid level limit value, closes described standard syrup inlet
Valve and described charging switch valve, including:
After having fed for the first time, if the liquid level of described crystallizer subtracts three less than described charging liquid level limit value, carry out second time
Charging.
4. the automatic method for manufacturing sugar of Radix Betae as claimed in claim 3, it is characterised in that on described superfast loading and described throwing powder rank
Also include between Duan:
After feeding described crystallizer, described steam control valve is set to auto state, and described steam control valve is along with liquid level
Change according to the folding limit function change of preassigned functional device.
5. the automatic method for manufacturing sugar of Radix Betae as claimed in claim 4, it is characterised in that also include in the described superfast loading stage:
When the liquid level in described crystallizer starts restriction more than agitator liquid level, start described agitator and be stirred.
6. the automatic method for manufacturing sugar of Radix Betae as claimed in claim 5, it is characterised in that described complete to throw powder after, described in enter
Enter the die bond stage carry out die bond before also include:
When finding pseudo-brilliant, open described standard syrup switch injection standard syrup or open hot-water switch and inject hot water and eliminate institute
State pseudo-brilliant.
7. the automatic method for manufacturing sugar of Radix Betae as claimed in claim 6, it is characterised in that also include: control described steam cock valve
With the described vacuum switch valve vapour pressure when carrying out throwing powder described in the vapour pressure in described die bond stage and vacuum are and vacuum
Value.
8. the automatic method for manufacturing sugar of Radix Betae as claimed in claim 7, it is characterised in that described in put tank and include: close described vacuum
Switch valve, close described steam cock valve, stop described machine agitator, open vacuum breaker steam valve, discharge valve carries out discharging.
9. the automatic method for manufacturing sugar of Radix Betae as claimed in claim 8, it is characterised in that described put tank after, also include cleaning of evaporator,
Described cleaning of evaporator includes:
Open described vacuum breaker steam valve and vapour washes switch valve, charging regulation valve is reached 50%, the temperature in described crystallizer
Degree is when reaching cleaning of evaporator temperature limit, and cleaning of evaporator terminates, and closes described vacuum breaker steam valve, described vapour washes switch valve and described charging is adjusted
Joint valve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610670079.8A CN106191323A (en) | 2016-08-15 | 2016-08-15 | A kind of method for manufacturing sugar automatically |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610670079.8A CN106191323A (en) | 2016-08-15 | 2016-08-15 | A kind of method for manufacturing sugar automatically |
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| CN201610670079.8A Pending CN106191323A (en) | 2016-08-15 | 2016-08-15 | A kind of method for manufacturing sugar automatically |
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| CN107551597A (en) * | 2017-09-05 | 2018-01-09 | 广州百兴网络科技有限公司 | A kind of cerium sulphate crystal method |
| CN111235325A (en) * | 2020-03-27 | 2020-06-05 | 钦州华成自控设备有限公司 | Automatic sugar boiling control system and method for sugar refinery |
| CN111676329A (en) * | 2020-06-09 | 2020-09-18 | 中粮糖业辽宁有限公司 | Automatic sugar boiling method for intermittent crystallizing tank |
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