CN104831002B - A kind of sugar clarification production line - Google Patents

A kind of sugar clarification production line Download PDF

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CN104831002B
CN104831002B CN201510204213.0A CN201510204213A CN104831002B CN 104831002 B CN104831002 B CN 104831002B CN 201510204213 A CN201510204213 A CN 201510204213A CN 104831002 B CN104831002 B CN 104831002B
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sugar
ceramic membrane
juice
outlet
baffle
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CN104831002A (en
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李凯
李文
杭方学
陆海勤
谢彩锋
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Guangxi University
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Guangxi University
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    • CCHEMISTRY; METALLURGY
    • C13SUGAR INDUSTRY
    • C13BPRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
    • C13B20/00Purification of sugar juices
    • CCHEMISTRY; METALLURGY
    • C13SUGAR INDUSTRY
    • C13BPRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
    • C13B20/00Purification of sugar juices
    • C13B20/02Purification of sugar juices using alkaline earth metal compounds
    • C13B20/04Purification of sugar juices using alkaline earth metal compounds followed by saturation
    • C13B20/06Purification of sugar juices using alkaline earth metal compounds followed by saturation with carbon dioxide or sulfur dioxide
    • CCHEMISTRY; METALLURGY
    • C13SUGAR INDUSTRY
    • C13BPRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
    • C13B20/00Purification of sugar juices
    • C13B20/16Purification of sugar juices by physical means, e.g. osmosis or filtration
    • CCHEMISTRY; METALLURGY
    • C13SUGAR INDUSTRY
    • C13BPRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
    • C13B20/00Purification of sugar juices
    • C13B20/16Purification of sugar juices by physical means, e.g. osmosis or filtration
    • C13B20/165Purification of sugar juices by physical means, e.g. osmosis or filtration using membranes, e.g. osmosis, ultrafiltration

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

A kind of sugar clarification production line, including sequentially connected mixed juice case, Horizontal helical type centrifuge, first heater, stove drying device, secondary heating mechanism, multistage ceramic membrane ultrafitration system and plate and frame filter press.The present invention only with the addition of a small amount of lime and SO in Cane Mixed Juice clarifying process2, by the SO added2Less, sulfur content is few in gained commerieal sugar, and colour is low, purity is high, ash content is low, so as to ensure that commerieal sugar can meet the needs of high-end customer.In addition, ceramic membrane ultrafitration clarification is employed in sugar cane juice clarification process, since membrane resistance caused by fouling on ceramic membrane is smaller, therefore the film permeation flux of ceramic membrane filter sugar-cane juice is larger, and the pottery membrane flux rate of decay is slow, higher membrane flux can be maintained to filter, so as to extend the Membrane cleaning cycle and reduce cleaning frequency membrane.

Description

A kind of sugar clarification production line
Technical field
The present invention relates to Sugar Engineering technical field, is specifically a kind of sugar clarification production line.
Background technology
China is the third-largest Chan Tang big countries in the world, produces white granulated sugar per year more than 10,000,000 tons.At present, according to sugar clarification The difference of technique, the method for production arable land white granulated sugar mainly have two kinds:First is sulfurous method, and second is carbonatation process.Both Although method can produce the white granulated sugar for meeting state quality standard, whether sulfurous method or carbonatation process all exist More or less shortcoming.Sulfurous method adds more SO in clarifying process2As fining agent, cause to have in commerieal sugar The residual of more sulphur, has some limitations for high-end customer;And carbonic acid rule needs substantial amounts of lime as clear Clear agent, and produce substantial amounts of strong basicity filter mud and be difficult to handle, it is unfavorable for ecological, environmental protective.This is also to cause domestic in recent years one The reason for a little sugar refinery are using " two step method " production high-quality white granulated sugar, still " two step method " technological process of production is longer, and equipment is thrown It is big to provide cost, high energy consumption, it is impossible to be widely adopted.
With the development of society and the continuous progress of science and technology, this physical separating process of membrane separation technique starts to draw The extensive concern of sugaring personage is played.Seperation film can be divided into two kinds of inoranic membrane and organic film according to the difference of its manufacture material.Base In inorganic ceramic membrane have mechanical strength is big, chemical stability is high, high temperature resistant, corrosion-resistant, resistance to oxidation, anti-microbe ability are strong, The advantages that separating high precision and easy cleaning, therefore it is widely regarded as being most suitable for the membrane material that sugar industry metaplasia is produced.
According to pertinent literature, there is cane sugar factory by mixed juice (sugar-cane juice) successively by adding ash, coarse filtration, ceramic membrane ultrafitration The clarified sugar cane juice obtained after clarification sends to evaporation, boils sugar.Ceramic membrane is directly filtered sugar-cane juice and obtains subsider juice by this method, The clarification process that sugaring process adds a series of complex such as sulphur plus ash, precipitation is eliminated, so as to substantially reduce whole sugar refining technology Flow, but this method still has more shortcoming:(1) although in this method can obtain color and luster it is limpid it is transparent, turbidity is minimum Sugarcane subsider juice, but since ceramic membrane ultrafitration is difficult the retention less pigment of number molecular weight, and these small molecule pigments It is a kind of pigment for being easily attached to sucrose crystal surface in sugar crystal process, therefore the white sand fried sugar that this method is produced Value is higher, its colour is extremely difficult to the requirement of country-level white granulated sugar colour (≤150IU) between 500~600IU;(2) exist In traditional sulfurous method clarification process of sugar production, although its removal rate to coloring matter is also smaller, due to its introducing SO2Pigment in sugar products bleaches it by the effect of redox reaction, thus inhibits sugaring crystallization process small molecule Pigment sucrose crystal surface attachment, and in syrup amino acid and reduced sugar easily occur Maillard reaction generation Mei Lade Pigment, Mei Lade pigments are also a kind of easily in the pigment of sucrose crystal surface attachment, and the presence of sulphur can suppress Mei Lade The generation of reaction, therefore the colour of the white granulated sugar obtained by traditional sulfurous method clarification process of sugar production clarifies work than above-mentioned embrane method Skill is much lower.Therefore, the sugar that this method obtains can only could obtain high-quality as raw sugar by the refining further walked Sugar, but this must considerably increase production cost, not receive generally for sugar refinery.
In order to enable the sugarcane subsider juice that membrane filtration obtains to process the preferable white granulated sugar of mass, patent of invention CN In 103725802A, inventor is by sugar-cane juice successively by coarse filtration, the smart filtering of ceramic membrane, organic film pre-concentration, ion exchange The decoloration of resin desalination, MVR are concentrated by evaporation, obtain refined sugar after crystallization.It is preferably refined that although this method can obtain quality Sugar, but its also there is more problem:(1) pH value of sugar-cane juice shows acidity, the unused lime of inventor generally 5.6 or so Newborn (or other materials) are reprocessed after the pH of sugar-cane juice is adjusted to neutrality left and right, this can cause sucrose seriously to turn in process Change loss, so as to reduce the rate of recovery of sucrose;(2) use organic nanofiltration or organic reverse osmosis membrane concentrated sugarcane juice, flux compared with It is small, cycles of concentration is low, easy to pollute, this not only adds sucrose processing time, cause sucrose inversion more, and add and set Standby cost of investment;(3) ion-exchange resin decolorization belongs to smart decoloration, and the colour of sugar-cane juice is generally in 1500~2500IU, color Value is higher, and the load this not only adds ion exchange resin also reduces the service life of ion exchange resin, and resin stain It hurry up, regeneration is more difficult;(4) in 3000~6000us/cm, the salinity in sugar-cane juice is removed to be caused the electrical conductivity of sugar-cane juice The load of desalination resin is larger, and equipment investment cost is larger, and the electrical conductivity of sugar-cane juice is although larger, but it was to refining sugar Journey influences smaller, it is not necessary to spends great number cost to be removed;(5) evaporation section is to heat sugarcane juice with steam, after sugarcane juice is seethed with excitement, Moisture evaporation, achievees the purpose that concentration, and generally using five effect pressure vacuum vapo(u)rization systems, becoming syrup from juice will in sugar refinery at present The moisture of evaporation is about 65%~80%, it is necessary to consume more steam, while also produces substantial amounts of indirect steam (juice vapour), this The indirect steam temperature produced a bit is also very high, is heated for syrup or boils sugared use, therefore evaporation section is both disappearing for steam Fei Zhe, and be the supply station of low-pressure steam, while other department's hot water of sugar refinery are also supplied, therefore have the title of the second boiler of sugar refinery, MVR Although the five effect pressure vacuum evaporations that evaporator instead of traditional sugaring process can obtain relatively low evaporating temperature, so as to obtain The preferable syrup of quality, but the temperature of MVR evaporations is relatively low, the pressure and temperature of its indirect steam produced is all than five effect pressure Be evaporated in vacuo it is much lower, it is available less efficient, if directly take out by the use of the steam exhaust from boiler cooling decompression as heat or Sugar vapour is boiled, energy consumption can be very high.
Therefore, as can traditional sulfurous method clarification process of sugar production is coupled with membrane separation technique, enter in sugar-cane juice and make pottery The pH value of sugar-cane juice is first adjusted to neutrality meta-alkali before porcelain film, sugar-cane juice is then subjected to low intensive stove drying again, makes sugarcane The intensity of sulfitation of juice is 4~6mL, enters back into ceramic membrane ultrafitration and clarifies to obtain sugarcane subsider juice, finally again send sugarcane subsider juice Devaporation concentration, cane sugar boiling and crystal, you can obtain the preferable white granulated sugar of quality.The sugar-cane juice that this method obtains is because there is a small amount of sulphur Color protection, can suppress the generation of Mei Lade pigments and prevent small molecule pigment that produces is sweet in sucrose crystal surface attachment Sugarcane subsider juice colour is low, purity is high, turbidity is low, can finally obtain the arable land white granulated sugar of high-quality to compare favourably with carbonatation process.
The content of the invention
The object of the present invention is to provide a kind of sugar clarification production line, solves traditional sulfurous method clarification process of sugar production The finished product that clarifying effect is poor, gained commerieal sugar sulfur content is high, quality is low and traditional membrane separation technique processing sugar-cane juice obtains The high technical problem of fried sugar value.
To achieve these goals, present invention employs following technical scheme:
A kind of sugar clarification production line, including sequentially connected mixed juice case, Horizontal helical type centrifuge, first heater, Stove drying device, secondary heating mechanism, multistage ceramic membrane ultrafitration system and plate and frame filter press.
The first baffle-box, stove drying device and the second heating are connected between the Horizontal helical type centrifuge and first heater The second baffle-box is connected between device, the 3rd buffering is connected between secondary heating mechanism and multistage ceramic membrane ultrafitration system Case.
Mixed juice case import is connected with cane sugar factory squeeze juice extracting workshop section and lime white tank, mixed juice case outlet and horizontal helical type Centrifuge import connects, and Horizontal helical type centrifuge outlet is connected with the first baffle-box import, the outlet of the first baffle-box and the first heating Device portal connects, and first heater outlet is connected with stove drying device massecuite inlet, and the outlet of stove drying device syrup is delayed with second Tank inlet connection is rushed, the outlet of the second baffle-box is connected with secondary heating mechanism entrance, secondary heating mechanism outlet and the 3rd buffering Tank inlet connects, and the outlet of the 3rd baffle-box is connected with multistage ceramic membrane ultrafitration system entry, and multistage ceramic membrane ultrafitration system passes through Liquid outlet is connected with sugarcane subsider juice storage tank entrance, and the outlet of sugarcane subsider juice storage tank is with being concentrated by evaporation, cane sugar boiling and crystal workshop section is connected, Multistage ceramic membrane ultrafitration system concentrated solution outlet is connected with plate and frame filter press entrance, and plate and frame filter press filtrate (liquid is connected to first Buffer tank inlet.
The first heater includes the first tubular heat exchanger, the second tubular heat exchanger and the 3rd row of series connection Pipe heat exchanger, wherein having a heater to play wheel washes replacement.
The secondary heating mechanism includes the 4th tubular heat exchanger, the 5th tubular heat exchanger and the 6th row of series connection Pipe heat exchanger, wherein having a heater to play wheel washes replacement.
The stove drying device includes the first vertical sulfitator and the second vertical sulfitator in parallel, wherein there is a sulfitator Play wheel and wash replacement.
The sulphur gas entrance of the stove drying device is connected with sulfur dioxide air supply source.
The multistage ceramic membrane ultrafitration system is the ceramic super-filtering film of Pyatyi parallel connection, and every grade of ceramic membrane is by two membrane module groups Into wherein having level-one to play wheel washes replacement.
Compared with prior art, the beneficial effect that the present invention possesses:
(1) a small amount of lime and SO only be with the addition of in Cane Mixed Juice clarifying process2, by the SO added2It is less, institute It is few to obtain sulfur content in commerieal sugar, and colour is low, purity is high, ash content is low, so as to ensure that commerieal sugar disclosure satisfy that high-end customer Demand.In addition, ceramic membrane ultrafitration clarification is employed in sugar cane juice clarification process, due to membrane resistance caused by fouling on ceramic membrane It is smaller, therefore the film permeation flux of ceramic membrane filter sugar-cane juice is larger, and the pottery membrane flux rate of decay is slow, can maintain higher Membrane flux filters, so as to extend the Membrane cleaning cycle and reduce cleaning frequency membrane.
(2) the multistage ceramic membrane ultrafitration system being made of the ceramic super-filtering film of Pyatyi parallel connection is employed, every grade by two films Component forms, and has level-one to play replacement wheel and washes, ensure that ceramic membrane ultrafitration system is capable of the operation of long-time stable.
(3) Horizontal helical type centrifuge coarse filtration sugar-cane juice is employed, relative to the coarse filtration equipment rotary screen of conventional sugarcane juice, bent sieve And vibrating screen etc., Horizontal helical type centrifuge have the advantages that compact-sized, separative efficiency is high, output capacity is big, auxiliary device is few.
(4) before sugar-cane juice enters the clarification of ceramic membrane ultrafitration system, first the pH value of sugar-cane juice is adjusted to 7.5~7.8, Then low intensive stove drying is carried out to sugar-cane juice again, the intensity of sulfitation of sugar-cane juice is controlled between 4~6mL, it has as follows Benefit:A. the pH value for adding sugarcane juice after milk of lime is adjusted is alkalescence, after the processes such as stove drying, heating, ultrafiltration, its pH value meeting 7.0~7.2 are dropped to, the sugar-cane juice after clarification is then sent into evaporation and concentration, cane sugar boiling and crystal again, so that sugarcane can be prevented Juice causes the more technical problem of sucrose inversion since pH is relatively low in process;B. in traditional sulfurous method sugar clarification work Need to add more SO in skill2(intensity of sulfitation is 25~30mL) generates more CaSO with milk of lime reaction3Precipitate to adsorb Non-sugar impurities in sugarcane juice, to achieve the purpose that clarified sugar cane juice, often leads in final finished sugar since the sulphur of addition is more The residual of sulphur is more, so that the quality of commerieal sugar is have impact on, and the present invention is in the base of existing sulfurous method clarification process of sugar production On plinth, most non-sugar impuritiess are removed in sugarcane juice with ceramic super-filtering film, and toward adding a small amount of SO in sugar-cane juice2, sugarcane Juice can suppress the generation of Mei Lade pigments and prevent small molecule pigment in sucrose crystal surface attachment, life because there is sulfur to protecting color The sugarcane subsider juice colour of output is low, purity is high, turbidity is low, can finally obtain the arable land of high-quality to compare favourably with carbonatation process White granulated sugar.
(5) by film concentrate after plate and frame filter press is handled, then it is back in coarse filtration sugar-cane juice storage bin, avoids concentrating Liquid directly exhausts, wasting problem.
Brief description of the drawings
Fig. 1 is the schematic diagram of sugar clarification production line of the present invention.
In figure:Cane sugar factory squeeze juice extracting workshop section 1;Lime white tank 2;Mixed juice case 3;Horizontal helical type centrifuge 4;First buffering Case 5;First tubular heat exchanger 6;Second tubular heat exchanger 7;3rd tubular heat exchanger 8;First vertical sulfitator 9;The Two vertical sulfitators 10;Second baffle-box 11;4th tubular heat exchanger 12;5th tubular heat exchanger 13;6th shell and tube Heat exchanger 14;3rd baffle-box 15;Multistage ceramic membrane ultrafitration system 16;Sugarcane subsider juice storage tank 17;Plate and frame filter press 18;Evaporation Concentration, cane sugar boiling and crystal workshop section 19;Sulfur dioxide air supply source 20.
Embodiment
Technical scheme is further elaborated below by embodiment.
Embodiment 1
A kind of sugar clarification production line, including sequentially connected mixed juice case 3, Horizontal helical type centrifuge 4, first heating dress Put, stove drying device, secondary heating mechanism, multistage ceramic membrane ultrafitration system 16 and plate and frame filter press 18.
The first baffle-box 5 is connected between the Horizontal helical type centrifuge 4 and first heater, stove drying device and second add The second baffle-box 11 is connected between thermal, it is slow to be connected with the 3rd between secondary heating mechanism and multistage ceramic membrane ultrafitration system Rush case 15.
3 import of mixed juice case is connected with cane sugar factory squeeze juice extracting workshop section 1 and lime white tank 2, and the outlet of mixed juice case 3 is with crouching 4 import of spiral shell formula centrifuge connect, Horizontal helical type centrifuge 4 outlet be connected with 5 import of the first baffle-box, the first baffle-box 5 export and First heater entrance connects, and first heater outlet is connected with stove drying device massecuite inlet, the outlet of stove drying device syrup It is connected with 11 entrance of the second baffle-box, the outlet of the second baffle-box 11 is connected with secondary heating mechanism entrance, and secondary heating mechanism goes out Mouth is connected with 15 entrance of the 3rd baffle-box, and the outlet of the 3rd baffle-box 15 is connected with multistage 16 entrance of ceramic membrane ultrafitration system, multistage The outlet of 16 permeate of ceramic membrane ultrafitration system is connected with 17 entrance of sugarcane subsider juice storage tank, the outlet of sugarcane subsider juice storage tank 17 and steaming Hair concentration, cane sugar boiling and crystal workshop section 19 connect, and multistage 16 concentrated solution outlet of ceramic membrane ultrafitration system connects with 18 entrance of plate and frame filter press Connect, 18 filtrate (liquid of plate and frame filter press is connected to 5 entrance of the first baffle-box.
The first heater includes the first tubular heat exchanger 6 of series connection, the second tubular heat exchanger 7 and the 3rd Tubular heat exchanger 8, wherein having a heater to play wheel washes replacement.
The secondary heating mechanism includes the 4th tubular heat exchanger 12 of series connection, the 5th tubular heat exchanger 13 and the Six tubular heat exchangers 14, wherein having a heater to play wheel washes replacement.
The stove drying device includes the first vertical 9 and second vertical sulfitator 10 of sulfitator in parallel, wherein there is a sulphur Smoked device plays wheel and washes replacement.
The sulphur gas entrance of the stove drying device is connected with sulfur dioxide air supply source 20.
The multistage ceramic membrane ultrafitration system 16 is the ceramic super-filtering film of Pyatyi parallel connection, and every grade of ceramic membrane is by two film groups Part forms, wherein having level-one to play wheel washes replacement.
Embodiment 2
The present embodiment is the example that actual production is carried out using sugar clarification production line described in embodiment 1, specific behaviour It is as follows to make step:
(1) it is plus grey:It is 8.0 ° of Be milk of limes that concentration is added into the mixed juice of cane sugar factory, adjust the pH value of sugar-cane juice to 7.6, prevent the sucrose in sugar-cane juice from converting in acid condition, cause Sucrose to lose, obtain adding grey sugar-cane juice;
(2) coarse filtration:Filtered using the Horizontal helical type centrifuge pair plus grey sugar-cane juice that aperture is 50.0 μm, it is sweet to obtain coarse filtration Sugarcane juice;
(3) heat for the first time:Coarse filtration sugar-cane juice is heated to 55 DEG C with tubular heat exchanger, beneficial to next step stove drying process Sugarcane juice is to SO2Absorption, obtain for the first time heating sugar-cane juice;
(4) stove drying:Stove drying is carried out to first time heating sugar-cane juice using stove drying device, obtains the sulphur that intensity of sulfitation is 4mL Smoked sugar-cane juice;
(5) heat for second:Stove drying sugar-cane juice is heated to 80~90 DEG C with tubular heat exchanger, obtains second of heating Sugar-cane juice;
(6) ceramic membrane ultrafitration is clarified:It is sweet to heating for the second time as 0.05 μm of multistage ceramic membrane ultrafitration system using membrane aperture Sugarcane juice carries out ultra filtering clarifying, obtains clarified sugar cane juice and film concentrate;
(7) evaporate, crystallize:Clarified sugar cane juice is after evaporation and concentration and cane sugar boiling and crystal, you can obtains white granulated sugar;
(8) film concentrate recycles:Film concentrate is filtered using plate and frame filter press, and by filtered fluid and coarse filtration sugarcane Juice mixes, repeat step (3)~(7).
Stove drying device described in step (4) is two vertical sulfitators in parallel, is washed more wherein there is a sulfitator to play wheel The effect of changing.
The operating parameter of ceramic membrane described in step (6) is as follows:Transmembrane pressure is 0.1~0.3Mpa, crossflow velocity for 4~ 5m/s, filtration temperature are 80~90 DEG C.
Multistage ceramic membrane ultrafitration system described in step (6) is the ceramic super-filtering film of Pyatyi parallel connection, and every grade of ceramic membrane is by two A membrane module composition, wherein having level-one to play wheel washes replacement.
Plate and frame filter press described in step (8) needs diatomite drainage.
Each physical and chemical index of white granulated sugar that embodiment 2 processes is as shown in the table:
*National Standard of the People's Republic of China GB317-2006
Embodiment 3
The present embodiment is another example that actual production is carried out using sugar clarification production line described in embodiment 1, specifically Operating procedure is as follows:
(1) it is plus grey:It is 8.5 ° of Be milk of limes that concentration is added into the mixed juice of cane sugar factory, adjust the pH value of sugar-cane juice to 7.5, prevent the sucrose in sugar-cane juice from converting in acid condition, cause Sucrose to lose, obtain adding grey sugar-cane juice;
(2) coarse filtration:Filtered using the Horizontal helical type centrifuge pair plus grey sugar-cane juice that aperture is 150.0 μm, obtain coarse filtration Sugar-cane juice;
(3) heat for the first time:Coarse filtration sugar-cane juice is heated to 65 DEG C with tubular heat exchanger, beneficial to next step stove drying process Sugarcane juice is to SO2Absorption, obtain for the first time heating sugar-cane juice;
(4) stove drying:Stove drying is carried out to first time heating sugar-cane juice using stove drying device, obtains the sulphur that intensity of sulfitation is 6mL Smoked sugar-cane juice;
(5) heat for second:Stove drying sugar-cane juice is heated to 80~90 DEG C with tubular heat exchanger, obtains second of heating Sugar-cane juice;
(6) ceramic membrane ultrafitration is clarified:It is sweet to heating for the second time as 0.10 μm of multistage ceramic membrane ultrafitration system using membrane aperture Sugarcane juice carries out ultra filtering clarifying, obtains clarified sugar cane juice and film concentrate;
(7) evaporate, crystallize:Clarified sugar cane juice is after evaporation and concentration and cane sugar boiling and crystal, you can obtains white granulated sugar;
(8) film concentrate recycles:Film concentrate is filtered using plate and frame filter press, and by filtered fluid and coarse filtration sugarcane Juice mixes, repeat step (3)~(7).
Stove drying device described in step (4) is two vertical sulfitators in parallel, is washed more wherein there is a sulfitator to play wheel The effect of changing.
The operating parameter of ceramic membrane described in step (6) is:Transmembrane pressure is 0.1~0.3MPa, crossflow velocity be 4~ 5m/s, filtration temperature are 80~90 DEG C.
Multistage ceramic membrane ultrafitration system described in step (6) is the ceramic super-filtering film of Pyatyi parallel connection, and every grade of ceramic membrane is by two A membrane module composition, wherein having level-one to play wheel washes replacement.
Plate and frame filter press described in step (8) needs diatomite drainage.
Each physical and chemical index of white granulated sugar that embodiment 3 processes is as shown in the table:
*National Standard of the People's Republic of China GB317-2006.

Claims (6)

1. a kind of sugar clarification production line, it is characterised in that including sequentially connected mixed juice case, Horizontal helical type centrifuge, first Heating unit, stove drying device, secondary heating mechanism, multistage ceramic membrane ultrafitration system and plate and frame filter press;
The first baffle-box, stove drying device and secondary heating mechanism are connected between the Horizontal helical type centrifuge and first heater Between be connected with the second baffle-box, be connected with the 3rd baffle-box between secondary heating mechanism and multistage ceramic membrane ultrafitration system;
Mixed juice case import is connected with cane sugar factory squeeze juice extracting workshop section and lime white tank, and mixed juice case outlet is centrifuged with horizontal helical type Machine import connects, and Horizontal helical type centrifuge outlet is connected with the first baffle-box import, the outlet of the first baffle-box and first heater Entrance connects, and first heater outlet is connected with stove drying device massecuite inlet, the outlet of stove drying device syrup and the second baffle-box Entrance connects, and the outlet of the second baffle-box is connected with secondary heating mechanism entrance, and secondary heating mechanism outlet enters with the 3rd baffle-box Mouth connection, the outlet of the 3rd baffle-box are connected with multistage ceramic membrane ultrafitration system entry, and multistage ceramic membrane ultrafitration system permeate goes out Mouth is connected with sugarcane subsider juice storage tank entrance, and the outlet of sugarcane subsider juice storage tank is with being concentrated by evaporation, cane sugar boiling and crystal workshop section is connected, multistage Ceramic membrane ultrafitration system concentrated solution outlet is connected with plate and frame filter press entrance, and plate and frame filter press filtrate (liquid is connected to the first buffering Tank inlet.
2. sugar clarification production line as claimed in claim 1, it is characterised in that the first heater includes the first of series connection Tubular heat exchanger, the second tubular heat exchanger and the 3rd tubular heat exchanger, wherein having a heater to play wheel washes replacement Effect.
3. sugar clarification production line as claimed in claim 1, it is characterised in that the secondary heating mechanism includes the 4th of series connection Tubular heat exchanger, the 5th tubular heat exchanger and the 6th tubular heat exchanger, wherein having a heater to play wheel washes replacement Effect.
4. sugar clarification production line as claimed in claim 1, it is characterised in that it is vertical that the stove drying device includes in parallel first Sulfitator and the second vertical sulfitator, wherein having a sulfitator to play wheel washes replacement.
5. sugar clarification production line as claimed in claim 1, it is characterised in that the sulphur gas entrance and titanium dioxide of the stove drying device Sulphur air supply source connects.
6. sugar clarification production line as claimed in claim 1, it is characterised in that the multistage ceramic membrane ultrafitration system for Pyatyi simultaneously The ceramic super-filtering film of connection, every grade of ceramic membrane are made of two membrane modules, wherein having level-one to play wheel washes replacement.
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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105331750A (en) * 2015-10-30 2016-02-17 吴苏文 Clarifying method for sugaring mixed juice
CN105886669A (en) * 2016-04-29 2016-08-24 广西尚唐高科技有限公司 Device and process for treating membrane filtration concentrated liquor generated in membrane based sugar production
CN106868228A (en) * 2017-03-23 2017-06-20 广西大学 A kind of processing equipment of embrane method sugaring concentrate
CN107937628A (en) * 2017-05-23 2018-04-20 中国科学院过程工程研究所 The cane sugar manufacture system and its processing method that a kind of full constituent utilizes
CN110731434B (en) * 2019-11-26 2024-01-30 广西叶茂机电自动化有限责任公司 Pretreatment system and pretreatment process before cane juice film passing

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