CN103849692A - Ultrasonic thermo-crosslinkage sterilization enhanced sugar reparation process - Google Patents

Ultrasonic thermo-crosslinkage sterilization enhanced sugar reparation process Download PDF

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Publication number
CN103849692A
CN103849692A CN201410094144.8A CN201410094144A CN103849692A CN 103849692 A CN103849692 A CN 103849692A CN 201410094144 A CN201410094144 A CN 201410094144A CN 103849692 A CN103849692 A CN 103849692A
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China
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ultrasonic
juice
sugar
sugarcane
storage
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CN201410094144.8A
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Chinese (zh)
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杭方学
李凯
徐勇士
邓立高
陆海勤
谢彩锋
李红
李大成
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Guangxi University
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Guangxi University
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Abstract

The invention discloses an ultrasonic thermo-crosslinkage sterilization enhanced sugar reparation process. The process comprises the following steps: (1) squeezing sugarcane, sending sugarcane juice flowing out of a squeezer to an ultrasonic juice storage tank, performing an ultrasonic treatment and sterilizing for the first time; (2) filtering the sugarcane juice which is sterilized for the first time by use of a curved sieve; (3) heating the sugarcane juice which is filtered by virtue of the curved sieve at a heating temperature of 30 DEG C to 60 DEG C; (4) conveying the juice which is heated to 30 DEG C to 60 DEG C to the juice storage tank, simultaneously adding lime milk and phosphoric acid, and performing the ultrasonic treatment for 3-20 minutes. The process disclosed by the invention has the advantages of greatly reducing the harms caused by microorganisms, reducing the loss of sugar, increasing the sugar yield, lowering the production cost and providing good economic benefit for a sugar plant; moreover, the reaction between the mixed juice and the lime milk can be promoted by the ultrasonic effect, appearance of a delayed reaction in the sugar juice solution is inhibited, a conventional sugar preparation process is improved, and the production of the sugar is promoted.

Description

A kind of ultrasonic heat connection sterilizing strengthening sugar refining technology
Technical field
The present invention relates to sugar refining technology intensifying technology field, sugar refinery, particularly a kind of ultrasonic heat connection sterilizing strengthening sugar refining technology.
Background technology
In cane sugar manufacture process, microorganism is the main harm that reduces the sucrose rate of recovery.Microorganism is mainly in expressing process to the harm of sugaring, and sugarcane raw material brings to sugar refinery a large amount of microorganisms that live, and wherein great majority enter the sugarcane juice of squeezing out, and the microorganism detecting has bacterium, yeast, mould.At squeezing section, all optimal growth conditions in microorganism of the temperature of sugarcane juice and pH value, microorganism amount reproduction, consumes a large amount of sucrose, also can produce the objectionable impuritiess such as acetic acid, lactic acid, alcohol simultaneously; In addition some bacterium especially goldbeater's skin beading bacterium except consuming sucrose, also can produce the material-dextran of high viscosity, be commonly called as " sugarcane meal ", this is larger to the hazardness of producing, and dextran harm mainly contains: increase cane juice clarification burden, body refuse settling velocity is slowed down, improve massecuite viscosity, suppress sucrose crystal growth, promote pseudo-brilliant generation, low-grade sugar purging difficulty, molasses purity are high, reduce the quality of commerieal sugar etc.
Ultrasonic wave refers to that frequency is greater than the mechanical wave of 20kHz, and when ultrasonic wave is propagated in medium, medium molecule will do simple harmonic oscillation centered by equilibrium theory of tide, and in negative pressure phase, intermolecular distance increases, malleation phase, and intermolecular distance reduces.In the time that the ultrasonic wave sound intensity of propagating in liquid is enough large, in the negative pressure semi-period, the solution gas that is present in the bubble of small gas (vapour) in liquid or separate out in liquid tiny area is known from experience and is increased rapidly, the sound wave malleation coming one after the other mutually in, bubble collapses because of compression again, collapse moment, in liquid, form hot localised points, hot(test)-spot temperature is up to more than 5000K, and more than pressure reaches 1000atm, focus rate of cooling reaches 1010Ks -1, and in liquid, be attended by powerful shockwave and 200ms -1microjet and Discharge illuminating effect harmony cause radical effect.Hyperacoustic a series of violent effect has been destroyed microbial cell wall and cytolemma, causes bacteria lysis, tenuigenin stripping, inactivation, thus reach the object of kill microorganisms.But simple supersonic killing microorganism limited in one's ability, is difficult to meet the demand of production practice.
Summary of the invention
The object of the invention is, in order to kill the microorganism in sugarcane juice, to prevent the conversion of sucrose, reduce sucrose loss, strengthening sugar refining technology, improves sugar refinery economic benefit.For achieving the above object, the present invention intends adopting following technical scheme:
The present invention relates to a kind of ultrasonic heat connection sterilizing strengthening sugar refining technology, it is characterized in that comprising the steps:
(1) cane milling, the sugarcane juice that squeezing machine is flowed out flows into ultrasonic storage juice case, and ultrasonication, carries out sterilization for the first time;
(2) sieve of the sugarcane juice march after sterilization for the first time filters;
(3) sugarcane juice that bent sieve filters heats, 30~65 ℃ of Heating temperatures;
(4) be heated to the sugarcane juice of 30~65 ℃ and be transported to storage juice case, add milk of lime and phosphoric acid, supersound process 3~20 minutes simultaneously.
In a preferred embodiment of the present invention, stirring rake is installed in described ultrasonic storage juice case central shaft position when ultrasonic for the first time, on storage juice case bottom, surrounding outer wall, some ultrasonic transducers are installed, the some insert ultrasonic devices of the inner installation of storage juice case, insert ultrasonic device is symmetrical around stirring rake, described insert ultrasonic device is made up of an open tube and the some ultrasonic transducers that are arranged on its surrounding inwall, described ultrasonic transducer is connected with ultra-sonic generator by cable, and described stirring rake is driven by agitator motor.
In another preferred embodiment of the present invention, stirring rake is installed in described ultrasonic storage juice case central shaft position when ultrasonic for the second time, on storage juice case bottom, surrounding outer wall, some ultrasonic transducers are installed, the some insert ultrasonic devices of the inner installation of storage juice case, insert ultrasonic device is symmetrical around stirring rake, described insert ultrasonic device is made up of an open tube and the some ultrasonic transducers that are arranged on its surrounding inwall, described ultrasonic transducer is connected with ultra-sonic generator by cable, and described stirring rake is driven by agitator motor
In another preferred embodiment of the present invention, the mixing juice after supersound process is transported to system refining workshop for the second time, makes commerieal sugar, and described system refining workshop is conventional system refining workshop, sugar refinery.
Beneficial effect of the present invention: the sugarcane juice that squeezing machine flows out carries out ultrasonic sterilization for the first time, average lethality rate has reached more than 67%; Twice ultrasonic sterilizing after heating, average lethality rate, up to more than 99%, greatly reduces the harm of microorganism, has reduced sugar loss, has improved sugar yield, reduces production costs, for having brought good economic benefit in sugar refinery; And ultrasonication can promote reacting of mixing juice and milk of lime, suppress the generation of after reaction in syrup solution, strengthen traditional sugar refining technology, promote Closed Circulation in Sugar Production.
Accompanying drawing explanation
Fig. 1 is the method process route chart of a kind of ultrasonic heat connection sterilizing strengthening sugar refining technology of the present invention;
In figure: 1 # squeezing machine 1,2# squeezing machine 2,3# squeezing machine 3,4# squeezing machine 4,5# squeezing machine 5, the ultrasonic storage juice of 5# squeezing machine case 6, the ultrasonic storage juice of 4# squeezing machine case 7, the ultrasonic storage juice of 3# squeezing machine case 8,1# squeezing machine and 2# squeezing machine storage juice case 9, bent sieve 10, well heater 11, ultrasonic storage juice case 12.
Fig. 2 is the structural representation of the ultrasonic storage juice case of the method for a kind of ultrasonic heat connection sterilizing strengthening sugar refining technology of the present invention;
In figure: sugarcane juice entrance 1, agitator motor 2, stirring rake 3, insert ultrasonic device 4, insert ultrasonic device cable 5, ultrasonic transducer 6, sugarcane juice case 7, sugarcane juice outlet 8.
Embodiment:
Below in conjunction with drawings and Examples, the invention will be further described.
Embodiment 1
1. cane milling: cane milling is identical with conventional cane sugar factory cane milling method.
2. sugarcane juice ultrasonic sterilization for the first time: as shown in Figure 1, the sugarcane juice that the sugarcane juice that 1# squeezing machine 1 flows out and 2# squeezing machine 2 flow out flows into storage juice case 9, the sugarcane juice that 3# squeezing machine 3 flows out flows into storage juice case 8, and the sugarcane juice that 4# squeezing machine 4 flows out flows into storage juice case 7, and the sugarcane juice that 5# squeezing machine 5 flows out flows into storage juice case 6; As shown in Figure 2, ultrasonic transducer 6 and insert ultrasonic device 4 acting in conjunction sugarcane juices on storage juice case 7 outer walls, agitator motor 2 drives stirring rake 3 to rotate simultaneously, carries out sterilization for the first time.
3. the bent sieve of mixing juice filters: as shown in Figure 1, the sugarcane juice that 1 # squeezing machine 1 and 2# squeezing machine 2 are squeezed out flows into storage juice case 9, is pumped into bent sieve 10, filters hotchpotchs such as removing sugarcane bits, and described bent sieve is the conventional bent sieve in sugar refinery.
4. mixing juice heating: as shown in Figure 1, the sugarcane juice after filter is sent into well heater 11, is heated to 30~34 ℃ of temperature, and described well heater is sugar refinery conventional heating device.
5. reacting of ultrasonic sterilizing for the second time and ultrasound-enhanced milk of lime and mixing juice: as shown in Figure 1, the mixing juice that is heated to 30~34 ℃ is transported to ultrasonic storage juice case 12; As shown in Figure 2, mixing juice after heating enters sugarcane juice case 7 from sugarcane juice entrance 1, add milk of lime and phosphoric acid from sugarcane juice entrance 1 simultaneously, ultrasonic transducer 6 on storage juice case 7 outer walls and insert ultrasonic device 4 acting in conjunction sugarcane juice 20 minutes, agitator motor 2 drives stirring rake 3 to rotate simultaneously, surpass and kill reacting of sound bacterium and ultrasound-enhanced milk of lime and mixing juice, adding of described milk of lime and phosphoric acid adds identical with the conventional milk of lime in sugar refinery and phosphoric acid.
6. mixing juice after treatment is transported to system refining workshop: as shown in Figure 2, mixing juice after treatment flows out from sugarcane juice outlet 8, is transported to system refining workshop, makes commerieal sugar, and described system refining workshop is conventional system refining workshop, sugar refinery.The sugarcane juice that 1# squeezing machine and 2# squeezing machine, 3# squeezing machine, 4# squeezing machine and 5# squeezing machine flow out carries out for the first time after ultrasonic sterilization, and average lethality rate has reached respectively 69.5%, 68.7%, 68.8% and 67.4%; Twice ultrasonic sterilizing after heating, average lethality rate is up to 99.1%.
Embodiment 2
1. cane milling: cane milling is identical with conventional cane sugar factory cane milling method.
2. sugarcane juice ultrasonic sterilization for the first time: as shown in Figure 1, the sugarcane juice that the sugarcane juice that 1# squeezing machine 1 flows out and 2# squeezing machine 2 flow out flows into storage juice case 9, the sugarcane juice that 3# squeezing machine 3 flows out flows into storage juice case 8, and the sugarcane juice that 4# squeezing machine 4 flows out flows into storage juice case 7, and the sugarcane juice that 5# squeezing machine 5 flows out flows into storage juice case 6; As shown in Figure 2, ultrasonic transducer 6 and insert ultrasonic device 4 acting in conjunction sugarcane juices on storage juice case 7 outer walls, agitator motor 2 drives stirring rake 3 to rotate simultaneously, carries out sterilization for the first time.
3. the bent sieve of mixing juice filters: as shown in Figure 1, the sugarcane juice that 1 # squeezing machine 1 and 2# squeezing machine 2 are squeezed out flows into storage juice case 9, is pumped into bent sieve 10, filters hotchpotchs such as removing sugarcane bits, and described bent sieve is the conventional bent sieve in sugar refinery.
4. mixing juice heating: as shown in Figure 1, the sugarcane juice after filter is sent into well heater 11, is heated to 60~63 ℃ of temperature, and described well heater is sugar refinery conventional heating device.
5. reacting of ultrasonic sterilizing for the second time and ultrasound-enhanced milk of lime and mixing juice: as shown in Figure 1, the mixing juice that is heated to 30~34 ℃ is transported to ultrasonic storage juice case 12; As shown in Figure 2, mixing juice after heating enters sugarcane juice case 7 from sugarcane juice entrance 1, add milk of lime and phosphoric acid from sugarcane juice entrance 1 simultaneously, ultrasonic transducer 6 on storage juice case 7 outer walls and insert ultrasonic device 4 acting in conjunction sugarcane juice 4 minutes, agitator motor 2 drives stirring rake 3 to rotate simultaneously, surpass and kill reacting of sound bacterium and ultrasound-enhanced milk of lime and mixing juice, adding of described milk of lime and phosphoric acid adds identical with the conventional milk of lime in sugar refinery and phosphoric acid.
6. mixing juice after treatment is transported to system refining workshop: as shown in Figure 2, mixing juice after treatment flows out from sugarcane juice outlet 8, is transported to system refining workshop, makes commerieal sugar, and described system refining workshop is conventional system refining workshop, sugar refinery.The sugarcane juice that 1# squeezing machine and 2# squeezing machine, 3# squeezing machine, 4# squeezing machine and 5# squeezing machine flow out carries out for the first time after ultrasonic sterilization, and average lethality rate has reached respectively 67.8%, 68.9%, 69.5% and 67.9%; Twice ultrasonic sterilizing after heating, average lethality rate is up to 99.4%.
The above is the preferred embodiments of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of principle of the present invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (4)

1. a ultrasonic heat connection sterilizing strengthening sugar refining technology, is characterized in that comprising the steps:
(1) cane milling, the sugarcane juice that squeezing machine is flowed out flows into ultrasonic storage juice case, and ultrasonication, carries out sterilization for the first time;
(2) sieve of the sugarcane juice march after sterilization for the first time filters;
(3) sugarcane juice that bent sieve filters heats, 30~65 ℃ of Heating temperatures;
(4) be heated to the sugarcane juice of 30~65 ℃ and be transported to storage juice case, add milk of lime and phosphoric acid, supersound process 3~20 minutes simultaneously.
2. sugar refining technology according to claim 1, stirring rake is installed in described ultrasonic storage juice case central shaft position when ultrasonic for the first time, on storage juice case bottom, surrounding outer wall, some ultrasonic transducers are installed, the some insert ultrasonic devices of the inner installation of storage juice case, insert ultrasonic device is symmetrical around stirring rake, described insert ultrasonic device is made up of an open tube and the some ultrasonic transducers that are arranged on its surrounding inwall, described ultrasonic transducer is connected with ultra-sonic generator by cable, and described stirring rake is driven by agitator motor.
3. sugar refining technology according to claim 1 and 2, stirring rake is installed in described ultrasonic storage juice case central shaft position when ultrasonic for the second time, on storage juice case bottom, surrounding outer wall, some ultrasonic transducers are installed, the some insert ultrasonic devices of the inner installation of storage juice case, insert ultrasonic device is symmetrical around stirring rake, described insert ultrasonic device is made up of an open tube and the some ultrasonic transducers that are arranged on its surrounding inwall, described ultrasonic transducer is connected with ultra-sonic generator by cable, and described stirring rake is driven by agitator motor.
4. according to the sugar refining technology described in claim 1-3 any one, the mixing juice after supersound process is transported to system refining workshop for the second time, makes commerieal sugar, and described system refining workshop is conventional system refining workshop, sugar refinery.
CN201410094144.8A 2014-03-13 2014-03-13 Ultrasonic thermo-crosslinkage sterilization enhanced sugar reparation process Pending CN103849692A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106213115A (en) * 2016-07-27 2016-12-14 浙江大学 A kind of method effectively killing the sublethal damage bacterium produced in heat-sterilization process
CN107245535A (en) * 2017-07-20 2017-10-13 白教法 A kind of method that can improve cane milling sucrose extraction
CN109576400A (en) * 2018-11-21 2019-04-05 德宏州制糖工业研究所 A method of reducing sugar loss before sugarcane is squeezed

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106213115A (en) * 2016-07-27 2016-12-14 浙江大学 A kind of method effectively killing the sublethal damage bacterium produced in heat-sterilization process
CN107245535A (en) * 2017-07-20 2017-10-13 白教法 A kind of method that can improve cane milling sucrose extraction
CN109576400A (en) * 2018-11-21 2019-04-05 德宏州制糖工业研究所 A method of reducing sugar loss before sugarcane is squeezed

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Application publication date: 20140611