CN202705371U - Mixed sugarcane juice phosphorizing liming synchronization direct proportion system - Google Patents
Mixed sugarcane juice phosphorizing liming synchronization direct proportion system Download PDFInfo
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- CN202705371U CN202705371U CN 201220188195 CN201220188195U CN202705371U CN 202705371 U CN202705371 U CN 202705371U CN 201220188195 CN201220188195 CN 201220188195 CN 201220188195 U CN201220188195 U CN 201220188195U CN 202705371 U CN202705371 U CN 202705371U
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Abstract
The utility model discloses a mixed sugarcane juice phosphorizing liming synchronization direct proportion system which plays a function of auxiliary clarification in a sugaring process. Firstly, mixed juice (phosphoric acid is not added, and lime is not added) flows into a buffering box to be temporarily buffered and stored (namely cache), by means of a pneumatic control valve, an electromagnetic flowmeter and a liquid level device combined detection and control piece, flow of the mixed juice out from the buffering box is controlled to be relatively balanced, and the flow is accurately calculated. Secondly, flow of the phosphoric acid and flow of lime milk which are added later are both added into the mixed juice in synchronous proportion integration differentiation (PID) mode according to the mixed juice flow which is already detected on line. At last, the three materials are mixed together to enter a reactor for achieving high-efficiency mixing reaction, and then the materials enter a squeezing mixed juice box pump to a refining workshop to be processed. The mixed sugarcane juice phosphorizing liming synchronization direct proportion system resolves the problems that in the prior art, the phosphoric acid value in mixed sugarcane juice is not uniform, the potential of hydrogen (pH) value of the mixed sugarcane juice is not stable, and the qualification rate is low, reduces dosage of the phosphoric acid and the lime milk, and saves production cost.
Description
Technical field
The utility model relates to the auxiliary clarification system in a kind of sugar refining technology, be specifically related to a kind of mix sugarcane juice phosphorate the ash system.
Background technology
In present sugarcane phosphoric acid-sulfurous acid fining process sugar refining technology flow process (PFD figure sees accompanying drawing Fig. 1 for details), phosphoric acid and milk of lime, sulfurous gas are three kinds of most important and crucial clarification process auxiliary materials (medicament), most sugar refinery all is the mode of production of taking to add phosphoric acid (phosphoric acid amount is to add quantity take its certain proportion calculated amount to sugarcane-squeezing amount as fixing) in the mixing juice of milling shop and adding in advance milk of lime, to play important auxiliary clarification.The flow rate fluctuation of the mixing sugarcane juice that cane sugar factory squeezes out (hereinafter referred to as mixing juice, being generally the mixing juice after the filtration) is large, be unbalanced, and because of the temporary derangement of squeezing of short duration cutout appears sometimes.
Prior art scheme one: corresponding PID figure sees accompanying drawing Fig. 2 for details, as fixed data with productive capacity press for extracting juice amount, the phosphoric acid amount of adding is so that sugarcane is added in the mixing juice as a laggard pedestrian worker of fixed amount or volume pump (or under meter) than conversion, adding the some position is before mixing juice enters the squeezing mixed juice case or in mixed juice case, mixing juice does not measure its flow; Add ash and be the variation that adds phosphoric acid, adds the sampling pH value (manual detection or automatic control pH value meter) of the mixing juice behind the ash and adjust conversely ash load, perhaps adding amount of lime is to add in the mixing juice so that the sugarcane ratio is carried out the manual shift valve as a fixed amount.
Prior art scheme two: corresponding PID figure sees accompanying drawing Fig. 3 for details, be at the pipeline behind the squeezing mixing juice pump under meter (going between the system refining) to be installed, feed back the automatic control of indication volume pump (or under meter+variable valve) with the mixing juice data on flows of this mixing juice under meter and add in the mixed juice case of phosphoric acid amount before the mixing juice pump; Add ash and be the variation that adds phosphoric acid, adds the mixing juice pH value (automatic control pH value meter) behind the ash and adjust ash load, perhaps feed back indication (lime variable valve+under meter) combination observing and controlling part with the mixing juice flow meter data and carry out automatic control and add in the mixed juice case of milk of lime amount before the mixing juice pump.
The shortcoming of prior art scheme one and scheme two mainly all is that the phosphoric acid value of making in the front mixing juice of refining is inhomogeneous, simultaneously mixing juice pH value also very unstable, compliance rate is relatively poor, various physical-chemical reactions are inhomogeneous, cause phosphorating and preliming after the reactivity weak effect, these all can have a strong impact on follow-up clarifying effect.This two schemes can cause all that the phosphoric acid amount of relative consumption is more in addition, milk of lime is also more and cause high expensive.Doing concrete analysis with scheme two is described as follows: it is (mixing juice generally has the residence time about 0.5～2 minute in the case) in the mixed juice case before the mixing juice under meter that phosphoric acid adds point, have larger retardation time, phosphoric acid flow, milk of lime flow and mixing juice flow can not become synchronous timing and the corresponding relation of direct ratio; In addition, because under meter is mounted on the pipeline behind the mixing juice pump, be subjected to the impact of liquid level and pump pressure in the case, the mixing juice flow rate fluctuation is large and accuracy is relatively poor, meaning namely causes its feedback indication phosphoric acid flow and the fluctuation of milk of lime fluctuations in discharge are also large and accuracy is also relatively poor; Therefore phosphoric acid amount and mixing juice amount be can not really reach processing requirement to the sugarcane unit rate of flow, the mixing juice phosphoric acid amount is more and the very inhomogeneous situation of the phosphoric acid value in less, the mixing juice is more sometimes in the time of can having, and this can have a strong impact on follow-up clarifying effect; In order to reduce mixing juice phosphoric acid value situation on the low side, most of factory utilizes increases the way that phosphoric acid amount is compromised and shakeout, and effect has institute and takes a turn for the better, but this has just increased unnecessary phosphoric acid addition virtually, has also just increased production cost.On the other hand, the squeezing this milk of lime mode that adds in advance, its mixing juice pH value that obtains also very unstable, compliance rate is relatively poor, this also has a strong impact on follow-up clarifying effect.
Cane sugar factory is at present after squeezing mixes sugarcane juice processing industry phosphoric acid (being called for short " phosphorating ") and adds milk of lime (being called for short " adding ash "), the mixing sugarcane juice phosphoric acid value that present production technology scheme obtains inhomogeneous and also mix sugarcane juice pH value also very unstable, compliance rate is relatively poor, to unfavorable with operation in the follow-up clarification, cause that clarifying effect is not good; And it is relative with the milk of lime amount on the high side to consume the industrial phosphoric acid amount.The present invention transforms for the shortcoming of prior art, the mixing juice phosphoric acid value uniform and stable to get, that compliance rate is high and mixing juice pH value, for follow-up obtain good clarifying efficiency lay good basis, to improve the quality of products and to improve sugar yield; Simultaneously can relatively reduce phosphoric acid consumption and milk of lime consumption, save production cost.
The utility model content
The technical problems to be solved in the utility model is: for deficiency of the prior art, provide a kind of mix sugarcane juice phosphorate the ash system, in the utility model, the mixing juice flow before the inflow reactor must be balanced and be accurate measurement, phosphoric acid flow and milk of lime flow must be synchronously and be proportional to this mixing juice flow and automatic control is regulated and added in the mixing juice.
A kind of mixing sugarcane juice synchronously direct ratio system of ash that phosphorates, it is characterized in that comprising the synchronous direct ratio measurement and control unit that phosphorates, direct ratio adds grey measurement and control unit synchronously, accurately mix sugarcane juice flow measuring and controlling unit, mix sugarcane juice case liquid level controlling unit, wherein synchronously the direct ratio measurement and control unit that phosphorates comprises the second magnetic flow meter FE02, the first variable valve, stopping valve, direct ratio adds grey measurement and control unit and comprises the 3rd magnetic flow meter FE03 synchronously, the second variable valve FE02, the 5th gate valve, accurately mix sugarcane juice flow measuring and controlling unit and comprise mixing sugarcane juice baffle-box, the 3rd variable valve, butterfly valve, the first magnetic flow meter FE01, mix sugarcane juice case liquid level controlling unit and comprise the squeezing mixed juice case, the first gate valve, the second gate valve, the 3rd gate valve, the 4th gate valve, the first squeezing mixing juice pump, the second squeezing mixing juice pump, squeezing phosphoric acid case is by the first variable valve, stopping valve links to each other with the second magnetic flow meter FE02, the milk of lime header box is by the 6th gate valve, the second variable valve, the 5th gate valve links to each other with the 3rd magnetic flow meter FE03, mix the sugarcane juice baffle-box and comprise that mixing sugarcane juice cylinder song sieves and the first liquid level meter, mix the sugarcane juice baffle-box by the 3rd variable valve, butterfly valve links to each other with the first magnetic flow meter FE01, the first magnetic flow meter FE01, the second magnetic flow meter FE02, the 3rd magnetic flow meter FE03 links to each other with reactor, on the squeezing mixed juice case the second liquid level meter is installed, reactor links to each other with an end of squeezing mixed juice case, and the other end of squeezing mixed juice case is connected with the first gate valve, the second gate valve, the 3rd gate valve, the 4th gate valve, the first squeezing mixing juice pump, the second squeezing mixing juice pump.
The nominal diameter of the first variable valve and stopping valve all is 25mm, and the nominal diameter of the 6th gate valve is 100mm, and the nominal diameter of the second variable valve, the 5th gate valve all is 40mm, and the nominal diameter of the 3rd variable valve, butterfly valve all is 300mm.The first variable valve, the second variable valve, the 3rd variable valve are pneumatic adjusting valve.
Compare with scheme two with prior art scheme one, remarkable advantage of the present utility model be really accomplished " the mixing juice flow before the inflow reactor must be balanced and be accurate measurement, phosphoric acid flow and milk of lime flow must be synchronously and be proportional to this mixing juice flow and automatic control regulate add in the mixing juice ", the technical program obviously obtains mixing juice phosphoric acid value and the mixing juice pH value that better uniform and stable, compliance rate is high than existing technology, be more conducive in the follow-up clarification and operation, clarifying efficiency better; Simultaneously can relatively reduce phosphoric acid consumption and milk of lime consumption, save production cost.In addition since obtained the operation such as accurate flow measuring and controlling, the supporting ash that phosphorates with friendly operation interface and smooth software support, monitoring automatic control and and the computerized information networking of full factory (or workshop), will obtain timely, good production and administration effect, greatly reducing the production and administration cost, reduce labor force and labour intensity, is phosphorate grey production operation and the highest best production technology method of management automation degree of present sugarcane juice.At present the domestic flow that there is no before adding phosphoric acid and milk of lime first mixing juice cushions, relative adjustment is balanced and accurate measurement after the synchronous technical scheme and the example that add of direct ratio again.
Description of drawings
Fig. 1: the PFD figure of the ash that phosphorates in the sugar refining technology at present
Fig. 2: the PID figure of prior art scheme one
Fig. 3: the PID figure of prior art scheme two
Fig. 4: the PID figure that the utility model mixing sugarcane juice phosphorates grey
Embodiment
A kind of mixing sugarcane juice synchronously direct ratio system of ash that phosphorates, it is characterized in that comprising the synchronous direct ratio measurement and control unit that phosphorates, direct ratio adds grey measurement and control unit synchronously, accurately mix sugarcane juice flow measuring and controlling unit, mix sugarcane juice case liquid level controlling unit, wherein synchronously the direct ratio measurement and control unit that phosphorates comprises the second magnetic flow meter FE02, the first variable valve, stopping valve, direct ratio adds grey measurement and control unit and comprises the 3rd magnetic flow meter FE03 synchronously, the second variable valve FE02, the 5th gate valve, accurately mix sugarcane juice flow measuring and controlling unit and comprise mixing sugarcane juice baffle-box, the 3rd variable valve, butterfly valve, the first magnetic flow meter FE01, mix sugarcane juice case liquid level controlling unit and comprise the squeezing mixed juice case, the first gate valve, the second gate valve, the 3rd gate valve, the 4th gate valve, the first squeezing mixing juice pump, the second squeezing mixing juice pump, squeezing phosphoric acid case is by the first variable valve, stopping valve links to each other with the second magnetic flow meter FE02, the milk of lime header box is by the 6th gate valve, the second variable valve, the 5th gate valve links to each other with the 3rd magnetic flow meter FE03, mix the sugarcane juice baffle-box and comprise that mixing sugarcane juice cylinder song sieves and the first liquid level meter, mix the sugarcane juice baffle-box by the 3rd variable valve, butterfly valve links to each other with the first magnetic flow meter FE01, the first magnetic flow meter FE01, the second magnetic flow meter FE02, the 3rd magnetic flow meter FE03 links to each other with reactor, on the squeezing mixed juice case the second liquid level meter is installed, reactor links to each other with an end of squeezing mixed juice case, and the other end of squeezing mixed juice case is connected with the first gate valve, the second gate valve, the 3rd gate valve, the 4th gate valve, the first squeezing mixing juice pump, the second squeezing mixing juice pump.
The nominal diameter of the first variable valve and stopping valve all is 25mm, and the nominal diameter of the 6th gate valve is 100mm, and the nominal diameter of the second variable valve, the 5th gate valve all is 40mm, and the nominal diameter of the 3rd variable valve, butterfly valve all is 300mm.The first variable valve, the second variable valve, the 3rd variable valve are pneumatic adjusting valve.
The phosphorate ultimate principle of grey method of the utility model mixing sugarcane juice is at first mixing juice (do not add phosphoric acid, do not add ash) will be flow into the temporary transient buffering that baffle-box carried out 1～2 minute to store (being buffer memory), adopting pneumatic adjusting valve and Electromagnetic Flow to take into account liquid level meter combination observing and controlling part will be from baffle-box mixing juice flow control relative equilibrium and its flow of accurate measurement (owing to be from stream mode, the metering result precision of under meter is very high) out; The phosphoric acid that adds subsequently and the flow of milk of lime all are that the mixing juice flow according to above online monitoring method carries out synchronous PID and adds in the mixing juice; The three is mixed and jointly enters a reactor afterwards, carries out high efficiency hybrid reaction, enters squeezing mixed juice case, pump again and goes the former flow process in system refining workshop.
The flow of mixing juice be according to press figureofmerit carry out relatively stable (relatively stable its initial opening of magnetic flow meter FE01 observing and controlling information feedback indication variable valve) after to process calculation, and again by baffle-box liquid level meter indication variable valve, interlock indication magnetic flow meter carries out a small amount of automatic control fine setting (liquid level is higher then to strengthen control valve opening relatively, namely strengthen the mixing juice flow, otherwise then corresponding reducing) again; Synchronously, be proportional to the phosphoric acid flow of mixing juice flow and milk of lime flow all be carry out in advance corresponding accurate technological design and calculating and carry out drawing, input after the shop experiment carry out in the computer system that radix is set, during actual production again by computer automatic controlled adjusting; Mixing juice adds the milk of lime ratio, can because of the concentration difference of milk of lime, the equal ratio difference of different times quality of mixing juice, will carry out drawing after the artificial shop experiment at each order of classes or grades at school for this reason.Simultaneously design compilation computer software system and computation interface, with friendly operation interface and smooth software support, the monitoring automatic control operations such as ash that phosphorate, the information of native system can be coupled together with the computer production operation command system of clarifying workshop section and full factory simultaneously, monitor whenever and wherever possible, analyze, command.
Claims (3)
1. one kind is mixed the sugarcane juice synchronously direct ratio system of ash that phosphorates, it is characterized in that comprising the synchronous direct ratio measurement and control unit that phosphorates, direct ratio adds grey measurement and control unit synchronously, accurately mix sugarcane juice flow measuring and controlling unit, mix sugarcane juice case liquid level controlling unit, wherein synchronously the direct ratio measurement and control unit that phosphorates comprises the second magnetic flow meter FE02, the first variable valve, stopping valve, direct ratio adds grey measurement and control unit and comprises the 3rd magnetic flow meter FE03 synchronously, the second variable valve FE02, the 5th gate valve, accurately mix sugarcane juice flow measuring and controlling unit and comprise mixing sugarcane juice baffle-box, the 3rd variable valve, butterfly valve, the first magnetic flow meter FE01, mix sugarcane juice case liquid level controlling unit and comprise the squeezing mixed juice case, the first gate valve, the second gate valve, the 3rd gate valve, the 4th gate valve, the first squeezing mixing juice pump, the second squeezing mixing juice pump, squeezing phosphoric acid case is by the first variable valve, stopping valve links to each other with the second magnetic flow meter FE02, the milk of lime header box is by the 6th gate valve, the second variable valve, the 5th gate valve links to each other with the 3rd magnetic flow meter FE03, mix the sugarcane juice baffle-box and comprise that mixing sugarcane juice cylinder song sieves and the first liquid level meter, mix the sugarcane juice baffle-box by the 3rd variable valve, butterfly valve links to each other with the first magnetic flow meter FE01, the first magnetic flow meter FE01, the second magnetic flow meter FE02, the 3rd magnetic flow meter FE03 links to each other with reactor, on the squeezing mixed juice case the second liquid level meter is installed, reactor links to each other with an end of squeezing mixed juice case, and the other end of squeezing mixed juice case is connected with the first gate valve, the second gate valve, the 3rd gate valve, the 4th gate valve, the first squeezing mixing juice pump, the second squeezing mixing juice pump.
2. a kind of mixing sugarcane juice as claimed in claim 1 synchronously direct ratio system of ash that phosphorates, the nominal diameter that it is characterized in that the first variable valve and stopping valve all is 25mm, the nominal diameter of the 6th gate valve is 100mm, the nominal diameter of the second variable valve, the 5th gate valve all is 40mm, and the nominal diameter of the 3rd variable valve, butterfly valve all is 300mm.
3. a kind of mixing sugarcane juice as claimed in claim 1 or 2 synchronously direct ratio system of ash that phosphorates is characterized in that the first variable valve, the second variable valve, the 3rd variable valve are pneumatic adjusting valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220188195 CN202705371U (en) | 2012-04-28 | 2012-04-28 | Mixed sugarcane juice phosphorizing liming synchronization direct proportion system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220188195 CN202705371U (en) | 2012-04-28 | 2012-04-28 | Mixed sugarcane juice phosphorizing liming synchronization direct proportion system |
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| CN202705371U true CN202705371U (en) | 2013-01-30 |
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| CN 201220188195 Expired - Fee Related CN202705371U (en) | 2012-04-28 | 2012-04-28 | Mixed sugarcane juice phosphorizing liming synchronization direct proportion system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103160621A (en) * | 2013-03-29 | 2013-06-19 | 彭思云 | Grey phosphorus sink-and-float separation method of sugaring mixed juice |
| CN105274260A (en) * | 2015-11-12 | 2016-01-27 | 南宁糖业股份有限公司 | Constant flow control system for flow of mixed juice and neutralized juice in sulfitation process |
| CN105779662A (en) * | 2016-04-29 | 2016-07-20 | 广西农垦糖业集团良圻制糖有限公司 | Device for fast sedimentation of filtered juice of sugar refinery and control method of device |
| CN110205408A (en) * | 2019-07-12 | 2019-09-06 | 广东省生物工程研究所（广州甘蔗糖业研究所） | The automatic control system and method for phosphoric acid value in a kind of sugar-cane juice |
-
2012
- 2012-04-28 CN CN 201220188195 patent/CN202705371U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103160621A (en) * | 2013-03-29 | 2013-06-19 | 彭思云 | Grey phosphorus sink-and-float separation method of sugaring mixed juice |
| CN105274260A (en) * | 2015-11-12 | 2016-01-27 | 南宁糖业股份有限公司 | Constant flow control system for flow of mixed juice and neutralized juice in sulfitation process |
| CN105779662A (en) * | 2016-04-29 | 2016-07-20 | 广西农垦糖业集团良圻制糖有限公司 | Device for fast sedimentation of filtered juice of sugar refinery and control method of device |
| CN110205408A (en) * | 2019-07-12 | 2019-09-06 | 广东省生物工程研究所（广州甘蔗糖业研究所） | The automatic control system and method for phosphoric acid value in a kind of sugar-cane juice |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20150428 |
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| EXPY | Termination of patent right or utility model |