CN102492780A - Method for removing impurities from sorgo - Google Patents
Method for removing impurities from sorgo Download PDFInfo
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- CN102492780A CN102492780A CN201110379720XA CN201110379720A CN102492780A CN 102492780 A CN102492780 A CN 102492780A CN 201110379720X A CN201110379720X A CN 201110379720XA CN 201110379720 A CN201110379720 A CN 201110379720A CN 102492780 A CN102492780 A CN 102492780A
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Abstract
The invention provides a method for removing impurities from sorgo. The method comprises the following steps of: cutting: cutting sorgo straws into 10-30cm; dry-cleaning: conveying the cut material into a disperser for dispersing and extracting at negative pressure at the same time; water-cleaning: conveying the dried-cleaned material by a link plate, wherein the dried-cleaned material is sprayed and rinsed 3-4 times according to the water volume of 0.05-0.3t in each ton of straws; squeezing: squeezing the rinsed material to produce mixed sugar juice; and flocculating: adding a flocculating agent to the mixed sugar juice for carrying out flocculating reaction, and feeding the flocculated supernatant juice into a subsequent working section. The method disclosed by the invention realizes removal of the impurities in the sorgo straws with a simple and efficient method, is beneficial to reducing the influence on the subsequence process, has a simple process and greatly-reduced operation cost and ensures that relative loss of sugars in the materials is little.
Description
Technical field
The present invention relates to a kind of sweet sorghum Impurity removal method, specifically a kind of simple efficient little sweet sorghum Impurity removal method of sugar loss.
Background technology
Sweet sorghum is as a kind of non-grain crop, and its stalk can be used as the raw material of producing alcohol fuel, for the development clean energy has been opened up new road; And in harvesting and transportation, can inevitably introduce silt, bring very big difficulty to subsequent production, as: (1) quantity of sand and mud is big, and equipment loss is serious; (2) a large amount of silts can cause line clogging, influence subsequent production etc.Simultaneously, sugared content is low in sweet sorghum leaf, the leaf sheath, extract to be worth for a short time, and equipment loss is big during squeezing.Therefore, seek a kind of economy, treatment process simple, efficient, removal sweet sorghum stalk impurity that sugar loss is few has important and practical meanings.
Summary of the invention
The objective of the invention is to remove sweet sorghum stalk impurity with pre-treatment-flocculation-solid-liquid isolation method; Like leaf, leaf sheath, chip, silt etc.; Reduce influence to subsequent production technology, like equipment loss, line clogging etc.; Reduced sugar loss to greatest extent, the production of units that has improved the raw material sweet sorghum stalk is worth and proposes a kind of sweet sorghum Impurity removal method.
Invention thinking of the present invention is:
In order to improve the big problem of the not high sugar loss of removal of impurity in the prior art; Especially the excessive problem of energy consumption, the present invention effectively utilizes pre-treatment, as vibrates and tentatively remove sand; And throw method such as the negative pressure absorption of loosing after the follow-up cutting; Under the situation that guarantees the sugar loss minimum, effectively removed sweet sorghum stalk impurity, and practiced thrift energy consumption greatly.
In order to realize the object of the invention, the present invention adopts following concrete technical scheme:
A kind of sweet sorghum Impurity removal method, said method comprises the steps:
(1) cutting: sweet sorghum stalk is cut into 10～30cm;
(2) dry-cleaning: the mass transport after will cutting is thrown the negative pressure extracting simultaneously that looses to throwing the machine that looses;
(3) washing: the material after the dry-cleaning is carried through carrier bar, during utilize the water yield spray irrigation three to four times of 0.05～0.3 ton of water of stalk per ton;
(4) squeezing: the material after the washing squeezes to produce and mixes syrup;
(5) flocculation precipitation: in mixing syrup, add the agent of wadding a quilt with cotton with fixed attention and coagulate the wadding reaction, the supernatant juice that coagulates after wadding a quilt with cotton gets into follow-up workshop section.
Also comprise vibrating before said step (1) cutting and remove sand, sweet sorghum stalk is vibrated said Vibrationsifter aperture 80～100mm through Vibrationsifter.
Said step (1) cutting is the section that sweet sorghum stalk is cut into 10cm, and otch does not neatly have breakage.
Dry-cleaning in the said step (2) is to be that 20～50% carrier bar is carried with the material after the cutting through percentage of open area, and conveying belt tilts 15 °～45 °, and conveying belt is terminal to be connected and throw loose machine and negative pressure extracting equipment material is thrown when loosing through negative pressure extracting.
Water after said step (3) washing is collected, and recirculated water after filtering gets into step (3) once more and carries out water-washing step.The spray washing is four times in the said step (3), and recirculated water is used in first three time, uses primary water for the last time.
The agent of wadding a quilt with cotton with fixed attention that said step (5) is used is: cationic polyacrylamide, chitosan and/or n-trimethyl chitosan chloride, the said agent dosage of wadding a quilt with cotton with fixed attention are that 0.5～5mg/L sweet sorghum mixes syrup.
The agent of wadding a quilt with cotton with fixed attention that said step (5) is used is: cationic polyacrylamide, chitosan and n-trimethyl chitosan chloride mix the agent of wadding a quilt with cotton with fixed attention, and three's blended weight ratio is 3: 2: 1.
Carry out solid-liquid separation after said step (5) coagulated the recycling precipitate behind the wadding, supernatant juice is mixed into subsequent step with the syrup of mixing after said step (4) is squeezed.
Beneficial effect of the present invention:
(1) realized the removal of sweet sorghum stalk impurity with the advantages of simplicity and high efficiency method, reduced influence subsequent technique;
(2) compare the removal of prior art impurity, technology is simple, and running cost reduces significantly;
(3) the most of realization of spray water recycle in the water washing process has reduced water consumption;
(4) mixing juice need not heating in the clarifying process, saves steam, has reduced cost;
(5) flocculant dosage is little, and residual quantity is also minimum, and the sugar relative loss is very little in the material.
Description of drawings
Fig. 1 is a schema of the present invention.
Embodiment
The equipment source that uses in the present embodiment is seen table 1:
Table 1
| Equipment | Buy producer |
| The sweet sorghum cutting machine | In the emerging energy (Inner Mongol) ltd |
| Vibrationsifter | In the emerging energy (Inner Mongol) ltd |
| Cyclonic separator | Gold ancient cooking vessel machinery |
| Three-roll press machine | In high sugared machine |
| The plate and frame filter | Holy prosperous environmental protection |
The sugar measuring method:
The clear juice of getting the about 30cm of mixing juice place with sampling thief is in the 50mL color-comparison tube, and vibration shakes up, and makes reference with zero(ppm) water, surveys its absorbancy in the 680nm place with 722 type spectrophotometers, and processing data is also analyzed the result is discussed; Reducing sugar is pressed GBT5009.7-2008 and is measured.
The calculating of flocculating rate:
Flocculating rate (%)=(A-B)/A * 100
The absorbance that A records when wavelength 680nm for contrast liquid; B is the absorbance that sample liquid records when wavelength 680nm.
The sweet sorghum squeezing process is this area routine techniques, and present embodiment adopts cane milling technology, i.e. five groups of three-roll press machine series connection are squeezed, and in expressing process, add wet water, to make things convenient for the extraction of syrup.
Embodiment 1 sweet sorghum stalk impurity-removing method
(1) cutting: sweet sorghum stalk is cut into the segment of 10cm, guarantees that otch does not neatly have breakage;
(2) dry-cleaning: the material after will cutting is carried by carrier bar, 15 ° at conveying belt angle of inclination, and the terminal machine that looses of throwing that connects is thrown the machine that looses and material is thrown (throw highly unrestrictedly material to be thrown to loose and get final product), and port is provided with the removal that negative pressure extracting is realized the small-particle sand;
(3) washing: the material after wind is washed is that 20% carrier bar is carried through percentage of open area, during utilize the water yield spray water of 0.05 ton of water of stalk per ton to give a baby a bath on the third day after its birth time; After water after the spray washing was collected by collection device, after clarifying filter filtered fast, silt was transported, and recirculated water gets into step (3) once more and carries out water-washing step.
(4) squeezing: the material after the flushing squeezes to produce and mixes syrup; The squeezing step can be used in the prior art sweet sorghum stalk syrup pressing method is squeezed.
(5) flocculation precipitation: in mixing syrup, add the agent of wadding a quilt with cotton with fixed attention and coagulate the wadding reaction, the agent of wadding a quilt with cotton with fixed attention is cationic polyacrylamide (CPAM), the agent dosage 1.5mg/L that wads a quilt with cotton with fixed attention, and the supernatant juice behind the flocculation precipitation gets into follow-up workshop section.
Experimental result: good to the removal effect of sweet sorghum stalk impurity with aforesaid method, and the CPAM dosage is when being 1.5mg/L, sediment charge is that the impurity flocculating rate of 1% sweet sorghum material surpasses 92%; The relative sugar loss of mixing juice is less than 0.5% in the treating processes.
Embodiment 2 sweet sorghum stalk impurity-removing methods
(1) vibration is removed sand: sweet sorghum stalk is first through Vibrationsifter, and 2 meters of Vibrationsifter length overalls, Vibrationsifter aperture 100mm removes impurity such as chip silt;
(2) cutting: sweet sorghum stalk is cut into the segment of 15cm, guarantees that otch does not neatly have breakage;
(3) dry-cleaning: the material after will cutting is carried by carrier bar, 45 ° at conveying belt angle of inclination, and the terminal machine that looses of throwing that connects is thrown the machine that looses material is thrown, and port is provided with negative pressure extracting, realizes the removal of small-particle sand, leaf sheath, blade;
(4) washing: the material after wind is washed is that 30% carrier bar is carried through percentage of open area, during utilize the water yield spray washing four times of 0.1 ton of water of stalk per ton; Recirculated water washing is used in first three time that sprays washing, and the 4th time the use primary water sprays washing; Recirculated water is: after the water after the spray washing was collected by collection device, after clarifying filter filtered fast, silt was transported, and recirculated water gets into step (3) once more and carries out water-washing step;
(5) squeezing: the material after the flushing squeezes to produce and mixes syrup; The squeezing step can be used in the prior art sweet sorghum stalk syrup pressing method is squeezed.
(6) coagulate wadding: in mixing syrup, add the agent of wadding a quilt with cotton with fixed attention and coagulate the wadding reaction, the agent of wadding a quilt with cotton with fixed attention is a chitosan, and the agent dosage 2mg/L that wads a quilt with cotton with fixed attention carries out flocculation precipitation, and the supernatant juice behind the flocculation precipitation gets into follow-up workshop section.
(7) the throw out silt in the flocculating settling pond is moisture more; Wherein sugar degree is also many; During not wasting; Mud juice (solidliquid mixture after the washing part silt do not removed of workshop section and impurity are by coagulating sedimentation) gets into solid-liquid separation, and solid-liquid separating equipment can be selected plate and frame(type)filter press for use, crouch whiz scheming, band filter etc., and the supernatant juice of supernatant juice after treatment behind step (6) flocculation precipitation also gets into follow-up workshop section.
Experimental result: good with aforesaid method to the removal effect of sweet sorghum stalk impurity, and the agent dosage of wadding a quilt with cotton with fixed attention is when being 2mg/L, the impurity flocculating rate of sweet sorghum material is all above 93%; The relative sugar loss of mixing juice is less than 0.3% in the treating processes.
Embodiment 3 sweet sorghum stalk impurity-removing methods
(1) vibration is removed sand: sweet sorghum stalk is first through Vibrationsifter, and 3 meters of Vibrationsifter length overalls, Vibrationsifter aperture 100mm removes impurity such as a large amount of chip silts;
(2) cutting: sweet sorghum stalk is cut into the segment of 30cm, guarantees that otch does not neatly have breakage;
(3) dry-cleaning: the material after will cutting is carried by carrier bar, 30 ° at conveying belt angle of inclination, and the terminal machine that looses of throwing that connects is thrown the machine that looses material is thrown, and port is provided with negative pressure extracting, realizes the removal of small-particle sand, leaf sheath, blade;
(4) washing: the material after wind is washed is that 50% carrier bar is carried through percentage of open area, during utilize the water yield spray washing four times of 0.3 ton of water of stalk per ton; Recirculated water washing is used in first three time that sprays washing, and the 4th time the use primary water sprays washing; Recirculated water is: after the water after the spray washing was collected by collection device, after clarifying filter filtered fast, silt was transported, and recirculated water gets into step (3) once more and carries out water-washing step;
(5) squeezing: the material after the flushing squeezes to produce and mixes syrup; The squeezing step can be used in the prior art sweet sorghum stalk syrup pressing method is squeezed;
(6) coagulate wadding: in mixing syrup, add the agent of wadding a quilt with cotton with fixed attention and coagulate the wadding reaction, the agent of wadding a quilt with cotton with fixed attention is a n-trimethyl chitosan chloride, and the agent dosage 5mg/L that wads a quilt with cotton with fixed attention carries out flocculation precipitation, and the supernatant juice behind the flocculation precipitation gets into follow-up workshop section.
(7) the throw out silt in the flocculating settling pond is moisture more; Wherein sugar degree is also many; During not wasting; Mud juice (solidliquid mixture after the washing part silt do not removed of workshop section and impurity are by coagulating sedimentation) gets into solid-liquid separation, and solid-liquid separating equipment can be selected plate and frame(type)filter press for use, crouch whiz scheming, band filter etc., and the supernatant juice of supernatant juice after treatment behind step (6) flocculation precipitation also gets into follow-up workshop section.
Experimental result: good with aforesaid method, and the agent dosage of wadding a quilt with cotton with fixed attention is when being 5mg/L to the removal effect of sweet sorghum stalk impurity, the impurity flocculating rate of sweet sorghum material surpass 95%; The relative sugar loss of mixing juice is less than 0.2% in the treating processes.
Embodiment 4 sweet sorghum stalk impurity-removing methods
(1) vibration is removed sand: sweet sorghum stalk is first through Vibrationsifter, and 3 meters of Vibrationsifter length overalls, Vibrationsifter aperture 100mm removes impurity such as a large amount of chip silts;
(2) cutting: sweet sorghum stalk is cut into the segment of 10cm, guarantees that otch does not neatly have breakage;
(3) dry-cleaning: the material after will cutting is carried by carrier bar, 30 ° at conveying belt angle of inclination, and the terminal machine that looses of throwing that connects is thrown the machine that looses material is thrown, and port is provided with negative pressure extracting, realizes the removal of small-particle sand, leaf sheath, blade;
(4) washing: the material after wind is washed is that 50% carrier bar is carried through percentage of open area, during utilize the water yield spray washing four times of 0.3 ton of water of stalk per ton; Recirculated water washing is used in first three time that sprays washing, and the 4th time the use primary water sprays washing; Recirculated water is: after the water after the spray washing was collected by collection device, after clarifying filter filtered fast, silt was transported, and recirculated water gets into step (3) once more and carries out water-washing step;
(5) squeezing: the material after the flushing squeezes to produce and mixes syrup; The squeezing step can be used in the prior art sweet sorghum stalk syrup pressing method is squeezed;
(6) coagulate wadding: in mixing syrup, add the agent of wadding a quilt with cotton with fixed attention and coagulate the wadding reaction; The agent of wadding a quilt with cotton with fixed attention is that cationic polyacrylamide, chitosan and n-trimethyl chitosan chloride mix the agent of wadding a quilt with cotton with fixed attention; Three's part by weight is: 3: 2: 1; The agent dosage 2mg/L that wads a quilt with cotton with fixed attention carries out flocculation precipitation, and the supernatant juice behind the flocculation precipitation gets into follow-up workshop section.
(7) the throw out silt in the flocculating settling pond is moisture more; Wherein sugar degree is also many; During not wasting; Mud juice (solidliquid mixture after the washing part silt do not removed of workshop section and impurity are by coagulating sedimentation) gets into solid-liquid separation, and solid-liquid separating equipment can be selected plate and frame(type)filter press for use, crouch whiz scheming, band filter etc., and the supernatant juice of supernatant juice after treatment behind step (6) flocculation precipitation also gets into follow-up workshop section.
Experimental result: good with aforesaid method, and the agent dosage of wadding a quilt with cotton with fixed attention is when being 2mg/L to the removal effect of sweet sorghum stalk impurity, the impurity flocculating rate of sweet sorghum material surpass 96%; The relative sugar loss of mixing juice is less than 0.2% in the treating processes.
Embodiment 5 controlled trials
1. fresh sweet sorghum stalk is cut with cutting machine, the cutting size is about the bulk of 20cm, requires otch neat, and cutting can make most of leaf and stem stalk separate.
2. material is sent into squeezing process, the squeezing back produces mixes syrup.Mix syrup without flocculation sedimentation tank, directly get into follow-up workshop section.
Experimental result; In this process, seeming does not have direct sugar loss; Also reduced a lot of operations, but a large amount of silt has caused cutting, squeezing and fermentation equipment wearing and tearing, machine-spoiled rate is compared with the inventive method and has been raise 80%; The equipment amortization expense is decreased worker's incident rate 1,000,000 man-hours and is raise 50% than adopting technology of the present invention to increase by 100 yuan in the processing costs of ton stalk.
Claims (9)
1. a sweet sorghum Impurity removal method is characterized in that said method comprises the steps:
(1) cutting: sweet sorghum stalk is cut into 10～30cm;
(2) dry-cleaning: the mass transport after will cutting is thrown the negative pressure extracting simultaneously that looses to throwing the machine that looses;
(3) washing: the material after the dry-cleaning is carried through carrier bar, during utilize the water yield spray irrigation three to four times of 0.05～0.3 ton of water of stalk per ton;
(4) squeezing: the material after the washing squeezes to produce and mixes syrup;
(5) flocculation precipitation: in mixing syrup, add the agent of wadding a quilt with cotton with fixed attention and coagulate the wadding reaction, the supernatant juice that coagulates after wadding a quilt with cotton gets into follow-up workshop section.
2. sweet sorghum Impurity removal method according to claim 1 is characterized in that, also comprises vibrating before said step (1) cutting and removes sand, and sweet sorghum stalk is vibrated said Vibrationsifter aperture 80～100mm through Vibrationsifter.
3. sweet sorghum Impurity removal method according to claim 1 and 2 is characterized in that, said step (1) cutting is the section that sweet sorghum stalk is cut into 10cm, and otch does not neatly have breakage.
4. sweet sorghum Impurity removal method according to claim 1; It is characterized in that; Dry-cleaning in the said step (2) is to be that 20～50% carrier bar is carried with the material after the cutting through percentage of open area; Conveying belt tilts 15 °～45 °, and conveying belt is terminal to be connected and throw loose machine and negative pressure extracting equipment material is thrown when loosing through negative pressure extracting.
5. sweet sorghum Impurity removal method according to claim 1 is characterized in that, the water after said step (3) washing is collected, and recirculated water after filtering gets into step (3) once more and carries out water-washing step.
6. sweet sorghum Impurity removal method according to claim 5 is characterized in that, the spray washing is four times in the said step (3), and recirculated water is used in first three time, uses primary water for the last time.
7. sweet sorghum Impurity removal method according to claim 1; It is characterized in that; The agent of wadding a quilt with cotton with fixed attention that said step (5) is used is: cationic polyacrylamide, chitosan and/or n-trimethyl chitosan chloride, the said agent dosage of wadding a quilt with cotton with fixed attention are that 0.5～5mg/L sweet sorghum mixes syrup.
8. sweet sorghum Impurity removal method according to claim 7 is characterized in that, the agent of wadding a quilt with cotton with fixed attention that said step (5) is used is: cationic polyacrylamide, chitosan and n-trimethyl chitosan chloride mix the agent of wadding a quilt with cotton with fixed attention, and three's adding proportion is 3: 2: 1.
9. according to claim 1 or 7 or 8 described sweet sorghum Impurity removal methods, it is characterized in that, carry out solid-liquid separation after said step (5) is coagulated the recycling precipitate behind the wadding, supernatant juice is mixed into subsequent step with the syrup of mixing after said step (4) is squeezed.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103710467A (en) * | 2013-12-23 | 2014-04-09 | 广西丰浩糖业集团有限公司 | Process for making sugar by using sorgo |
| CN104324887A (en) * | 2014-11-04 | 2015-02-04 | 中国轻工业南宁设计工程有限公司 | Method and equipment for clearing away sediment from stalks of sweet sorghums |
| CN104480226A (en) * | 2014-12-15 | 2015-04-01 | 广西科技大学 | Syrup clarifying technology with quicklime process |
| CN109295786A (en) * | 2018-09-30 | 2019-02-01 | 天长市禾盛生物质能源科技有限公司 | A method of removal rice husk impurity |
| CN110694886A (en) * | 2019-10-25 | 2020-01-17 | 南宁科泰机械设备有限公司 | Impurity removal system for pretreatment of raw material sugarcane |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103710467A (en) * | 2013-12-23 | 2014-04-09 | 广西丰浩糖业集团有限公司 | Process for making sugar by using sorgo |
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| CN109295786A (en) * | 2018-09-30 | 2019-02-01 | 天长市禾盛生物质能源科技有限公司 | A method of removal rice husk impurity |
| CN110694886A (en) * | 2019-10-25 | 2020-01-17 | 南宁科泰机械设备有限公司 | Impurity removal system for pretreatment of raw material sugarcane |
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Effective date of registration: 20140611 Address after: 100029 Beijing city Chaoyang District Yumin Road No. 12 block E3 Patentee after: ZONERGY COMPANY LIMITED Address before: 015100 the Inner Mongolia Autonomous Region Bayannaoer Wuyuan County Industrial Park ZTE energy (Inner Mongolia) Technology Co. Ltd. Patentee before: ZTE Energy Co., Ltd. |