CN212293612U - Online continuous calcium system that removes of xylose mother liquor - Google Patents
Online continuous calcium system that removes of xylose mother liquor Download PDFInfo
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- CN212293612U CN212293612U CN202020806908.2U CN202020806908U CN212293612U CN 212293612 U CN212293612 U CN 212293612U CN 202020806908 U CN202020806908 U CN 202020806908U CN 212293612 U CN212293612 U CN 212293612U
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Abstract
The utility model relates to an online continuous decalcification system of wood sugar mother liquor, including the preceding jar of decalcification, sodium carbonate solution storage tank, the line mixer, the decalcification jar and the pH that is provided with online pH meter detect the buffer tank, jar and line mixer intercommunication before the decalcification, sodium carbonate solution storage tank also communicates with the line mixer, the line mixer is linked together with the decalcification jar, the decalcification jar communicates to lower process through going out the liquid pipe, pH detects the buffer tank setting in going out the liquid pipe, still set up backflow pipeline and another inlet intercommunication of decalcification jar on going out the liquid pipe, backflow pipeline's interface setting is at the rear portion of pH detection buffer tank, set up the backward flow valve on backflow pipeline, set up out the liquid valve on going out the liquid pipe, go out the liquid valve setting at the rear portion of backflow pipeline interface, online pH meter simultaneous control backward flow valve and the switching that goes out. The utility model discloses an add sodium carbonate to full back xylose mother liquor and carry out online automatic decalcification and handle, reduce calcium ion concentration in the xylose mother liquor.
Description
Technical Field
The utility model belongs to the technical field of the utilization of xylose mother liquor, in particular to online continuous calcium removal system for xylose mother liquor.
Background
The xylose mother liquor is a material left after the corncob hydrolysate is centrifugally purified, the xylose content in the xylose mother liquor reaches 40-50%, and the xylose mother liquor can be purified and reused after being subjected to chromatographic separation. Because of impurity enrichment in the xylose mother liquor, the impurity removal task can not be effectively completed by pure plate-and-frame filtration, and in order to increase the impurity removal effect, the xylose mother liquor is subjected to full-filling flocculation pretreatment by a carbonic acid method in the sugar industry, so that the impurity removal effect is improved. Although the saturation impurity removal can greatly improve the impurity removal efficiency, the concentration of calcium ions in the xylose mother liquor after impurity removal often reaches more than 3000ppm, the ion exchange capacity of the subsequent process is influenced, and ion exchange resin enriches a large amount of calcium ions in the exchange process, so that the sewage pipeline and sewage treatment equipment have serious scaling problems.
At present, the xylose mother liquor is simply treated by a plurality of ion exchange resins to reduce the influence of calcium ions in the xylose mother liquor on the post-process. Neglecting the problem of calcium ion treatment in xylose mother liquor after saturation leads to great reduction of ion exchange capacity, large consumption of ion exchange acid and alkali, more regenerated sewage, poor production stability and high production cost.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that an online calcium system that removes in succession of xylose mother liquor is provided, through adding the sodium carbonate to full back xylose mother liquor and carry out online automatic calcium removal and handle, reduce calcium ion concentration in the xylose mother liquor, improve the back process ion exchange volume, reduce regeneration acid and alkali consumption, reduction in production cost improves the production continuity.
The utility model is realized in such a way, the utility model provides an online continuous deliming system of xylose mother liquor, including the preceding jar of deliming, sodium carbonate solution storage tank, the line mixer, the deliming jar and be provided with the pH of on-line pH meter and detect the buffer tank, the xylose mother liquor that waits to delime is stored in the preceding jar of deliming, the preceding jar of deliming communicates with a inlet of line mixer through first feed liquor pipeline, the sodium carbonate solution that the deliming was used is stored in the sodium carbonate solution storage tank, the sodium carbonate solution storage tank communicates with another inlet of line mixer through the second feed liquor pipeline, the liquid outlet of line mixer communicates with a inlet of deliming jar through mixed liquid pipeline, the liquid outlet of deliming jar communicates to next process through the liquid outlet pipeline, the pH detects the buffer tank and sets up in the liquid outlet pipeline, still set up backflow pipeline and another inlet of deliming jar on the liquid outlet pipeline and communicate, the interface setting of backward flow pipeline is at the rear portion of pH detection buffer tank, sets up the backwash valve on the backward flow pipeline, still sets up out the liquid pump and goes out the liquid valve on liquid outlet pipe respectively, goes out the liquid pump setting in the front portion of pH detection buffer tank, goes out the liquid valve setting in the rear portion of backward flow pipeline interface, and online pH meter controls the switching of backwash valve and play liquid valve simultaneously.
Further, still set gradually mother liquor pump, mother liquor on-line flowmeter and mother liquor flow control valve respectively on first inlet conduit, mother liquor on-line flowmeter and mother liquor flow control valve interlock each other.
Further, a mother liquor valve is arranged on the first liquid inlet pipeline, and the mother liquor valve is arranged at the front part of the mother liquor pump.
Furthermore, a sodium carbonate metering pump and a sodium carbonate online flowmeter are respectively and sequentially arranged on the second liquid inlet pipeline, and the sodium carbonate metering pump and the sodium carbonate online flowmeter are mutually interlocked with the online pH meter respectively.
Furthermore, a sodium carbonate valve is arranged on the second liquid inlet pipeline and is arranged in front of the sodium carbonate metering pump.
Further, a stirring device and a liquid level meter are respectively arranged in the pre-calcium removal tank, the sodium carbonate solution storage tank and the calcium removal tank.
Furthermore, a liquid outlet manual valve is arranged on the liquid outlet pipeline and is arranged at the front part of the liquid outlet pump.
Compared with the prior art, the utility model discloses an online calcium system that removes in succession of xylose mother liquor has following characteristics:
1. the concentration of calcium ions in the xylose mother liquor can be reduced from 3000ppm to 1000ppm, so that the ion exchange capacity of the subsequent working procedure is greatly improved;
2. the acid and alkali consumption of a ton product in the later process is reduced, the quantity of regenerated sewage is reduced, the production cost is reduced, and the production stability is improved;
3. the calcium ion concentration of the ion exchange feed in the later process is reduced, the calcium ion concentration in the regenerated sewage is correspondingly reduced, and the scaling possibility of a sewage pipeline is reduced;
4. the sediment generated in the calcium removal process can further improve the filling effect, thereby being beneficial to the later filtration and impurity removal.
Drawings
Fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, the arrow direction in the figure indicates the material flow direction, the dotted line indicates the control interlock connection of the electrical signal, the preferred embodiment of the xylose mother liquor on-line continuous calcium removing system of the present invention comprises a pre-calcium removing tank 1, a sodium carbonate solution storage tank 2, a pipeline mixer 3, a calcium removing tank 4 and a pH detection buffer tank 6 provided with an on-line pH meter 5.
Stirring devices and liquid level meters (not shown in the figure) are respectively arranged in the pre-calcium removal tank 1, the sodium carbonate solution storage tank 2 and the calcium removal tank 4. The stirring device prevents the liquid in the tank from precipitating, and the liquid level meter is used for monitoring the liquid level of the liquid in the tank.
The xylose mother liquor to be decalcified is stored in a calcium-removing front tank 1, and the calcium-removing front tank 1 is communicated with a liquid inlet of a pipeline mixer 3 through a first liquid inlet pipeline 8. The prepared sodium carbonate solution for calcium removal is stored in a sodium carbonate solution storage tank 2, and the sodium carbonate solution storage tank 2 is communicated with the other liquid inlet of the pipeline mixer 3 through a second liquid inlet pipeline 9. The liquid outlet of the pipeline mixer 3 is communicated with a liquid inlet of the calcium removal tank 4 through a mixed liquid pipeline 10. The xylose mother liquor to be decalcified and the sodium carbonate solution for decalcifying are mixed in a pipeline mixer 3, so that the mixing effect of the two materials is improved; the two materials are mixed and then flow into the calcium removal tank 4 through a mixing pipeline 10.
The liquid outlet of the calcium removing tank 4 is communicated to the next working procedure through a liquid outlet pipeline 11. In the calcium removal tank 4, the sodium carbonate solution and calcium ions in the xylose mother liquor to be subjected to calcium removal are subjected to chemical reaction to generate calcium carbonate so as to reduce the concentration of the calcium ions in the xylose mother liquor. The xylose mother liquor after calcium removal enters the next process, namely a filtration process for removing impurities through a liquid outlet pipeline 11.
The pH detection buffer tank 6 is arranged in the liquid outlet pipeline 11. The pH detection buffer tank 6 is used for buffering the discharge flow and reducing the influence of the discharge flow on the on-line pH meter 5. A reflux pipeline 12 is also arranged on the liquid outlet pipeline 11 and is communicated with the other liquid inlet of the calcium removal tank 4. The interface of the return pipe 12 is provided at the rear of the pH detection buffer tank 6. A return valve 13 is provided in the return line 12.
The liquid outlet pipe 11 is also provided with a liquid outlet pump 14, a liquid outlet valve 15 and a manual liquid outlet valve 16. The liquid outlet pump 14 is arranged at the front part of the pH detection buffer tank 6, the liquid outlet valve 15 is arranged at the rear part of the interface of the backflow pipeline 12, and the liquid outlet manual valve 16 is arranged at the front part of the liquid outlet pump 14.
The on-line pH meter 5 controls the opening and closing of the reflux valve 13 and the liquid outlet valve 15 at the same time. The on-line pH meter 5 is provided with a set value, when the on-line pH meter 5 monitors that the pH value of the xylose mother liquor after calcium removal in the pH detection buffer tank 6 is greater than the set value, the liquid outlet valve 15 is opened, the reflux valve 13 is closed, the xylose mother liquor after calcium removal is discharged to the next process through the liquid outlet pipeline 11, otherwise, the liquid outlet valve 15 is closed, the reflux valve 13 is opened, and the xylose mother liquor returns to the calcium removal tank 4 through the reflux pipeline 12 to continue calcium removal circulation until the pH value is greater than the set value of the on-line pH meter 5.
The first liquid inlet pipeline 8 is also provided with a mother liquid valve 7, a mother liquid pump 18, a mother liquid on-line flowmeter 19 and a mother liquid flow regulating valve 17 in sequence. The mother liquor on-line flow meter 19 and the mother liquor flow regulating valve 17 are interlocked with each other. Adjusting the feeding flow of the xylose mother liquor to be subjected to calcium removal according to production requirements. The mother liquor valve 7 is arranged in front of the mother liquor pump 18.
A sodium carbonate valve 21, a sodium carbonate metering pump 22 and a sodium carbonate on-line flowmeter 20 are respectively and sequentially arranged on the second liquid inlet pipeline 9. The sodium carbonate metering pump 22 and the sodium carbonate on-line flow meter 20 are interlocked with the on-line pH meter 5, respectively. The flow rate of the sodium carbonate metering pump 22 is adjusted by the deviation of the measured value and the set value of the on-line pH meter 5. A sodium carbonate valve 21 is provided in front of the sodium carbonate metering pump 22.
The system of the utility model is further illustrated by taking the xylose mother liquor material to be decalcified after refractive light 60 +/-2%, pH6.0-6.5, calcium ion concentration 3500ppm are full as an example to remove calcium.
Adopt the utility model discloses a xylose mother liquor includes following step when removing calcium in the online calcium system that removes in succession:
firstly, adding 60% liquid level purified water into a sodium carbonate solution storage tank 2, adding sodium carbonate, starting stirring and compressed air, and preparing the sodium carbonate solution with the concentration of 20% by stirring and back flushing of the compressed air.
And secondly, setting the online mother liquor flowmeter 19 to be 6 m/h, setting the online sodium carbonate flowmeter 20 to be 0.5 m/h, simultaneously opening the mother liquor valve 7, the sodium carbonate valve 21, the mother liquor pump 18 and the sodium carbonate metering pump 22, and simultaneously injecting the xylose mother liquor material and the sodium carbonate into the pipeline mixer 3 for uniform mixing and then entering the calcium removal tank 4.
And thirdly, opening a manual liquid outlet valve 16, a liquid outlet pump 14 and a reflux valve 13, adjusting a sodium carbonate metering pump 22, adjusting the pH value of the calcium-removed xylose mother liquor material to 8.5 through self circulation of a calcium removal tank 4, and performing calcium removal treatment on the xylose mother liquor.
And fourthly, when the pH value of the xylose mother liquor is detected to reach 8.5 by the on-line pH meter 5, closing the reflux valve 13, opening the liquid outlet valve 15, and filtering and removing impurities from the xylose mother liquor material subjected to calcium removal in the next process.
And fifthly, after the xylose mother liquor material after calcium removal flows directly, interlocking the on-line pH meter 5 with the sodium carbonate metering pump 22, entering an automatic continuous calcium removal process, and controlling the adding flow of the sodium carbonate solution through the deviation of the set value and the detection value of the on-line pH meter 5, thereby achieving the effect of stabilizing the discharging pH value of the xylose mother liquor after calcium removal.
The calcium removal treatment of the xylose mother liquor material after the saturation is completed through the five steps. Through detection, the calcium ion concentration of the xylose mother liquor material after calcium removal treatment is reduced to 800ppm from 3500ppm before calcium removal, and after the xylose mother liquor material after calcium removal enters into ion exchange, the ion exchange capacity is increased to 20 times from 8 times of the original resin volume, so that the acid-base consumption and the wastewater discharge of ton products are greatly reduced, and the production continuity is improved.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. A xylose mother liquor on-line continuous calcium removal system is characterized by comprising a calcium removal front tank, a sodium carbonate solution storage tank, a pipeline mixer, a calcium removal tank and a pH detection buffer tank provided with an on-line pH meter, wherein the xylose mother liquor to be subjected to calcium removal is stored in the calcium removal front tank, the calcium removal front tank is communicated with one liquid inlet of the pipeline mixer through a first liquid inlet pipeline, the sodium carbonate solution for calcium removal is stored in the sodium carbonate solution storage tank, the sodium carbonate solution storage tank is communicated with the other liquid inlet of the pipeline mixer through a second liquid inlet pipeline, the liquid outlet of the pipeline mixer is communicated with one liquid inlet of the calcium removal tank through a mixed liquid pipeline, the liquid outlet of the calcium removal tank is communicated with the next process through a liquid outlet pipeline, the pH detection buffer tank is arranged in the liquid outlet pipeline, a backflow pipeline is also arranged on the liquid outlet pipeline and communicated with the other liquid inlet of the calcium removal tank, and a connector of the backflow pipeline is arranged at the, the backflow pipeline is provided with a backflow valve, the liquid outlet pipeline is further provided with a liquid outlet pump and a liquid outlet valve, the liquid outlet pump is arranged in the front of the pH detection buffer tank, the liquid outlet valve is arranged at the rear of the backflow pipeline interface, and the online pH meter controls the backflow valve and the liquid outlet valve to be opened and closed simultaneously.
2. The xylose mother liquor on-line continuous calcium removal system as claimed in claim 1, wherein a mother liquor pump, a mother liquor on-line flow meter and a mother liquor flow regulating valve are respectively and sequentially arranged on the first liquid inlet pipeline, and the mother liquor on-line flow meter and the mother liquor flow regulating valve are mutually interlocked.
3. The xylose mother liquor on-line continuous calcium removal system as claimed in claim 2, wherein a mother liquor valve is further arranged on the first liquid inlet pipeline, and the mother liquor valve is arranged at the front part of the mother liquor pump.
4. The on-line continuous calcium removal system for xylose mother liquor as claimed in claim 2 or 3, wherein a sodium carbonate metering pump and a sodium carbonate on-line flow meter are respectively and sequentially arranged on the second liquid inlet pipeline, and the sodium carbonate metering pump and the sodium carbonate on-line flow meter are respectively interlocked with the on-line pH meter.
5. The on-line continuous calcium removal system for xylose mother liquor as claimed in claim 4, wherein a sodium carbonate valve is further arranged on the second liquid inlet pipeline, and the sodium carbonate valve is arranged in front of the sodium carbonate metering pump.
6. The on-line continuous calcium removal system for xylose mother liquor as claimed in claim 1, wherein a stirring device and a liquid level meter are respectively arranged in the pre-calcium removal tank, the sodium carbonate solution storage tank and the calcium removal tank.
7. The on-line continuous calcium removal system for xylose mother liquor as claimed in claim 1, wherein a manual effluent valve is further arranged on the effluent pipeline, and the manual effluent valve is arranged in front of the effluent pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020806908.2U CN212293612U (en) | 2020-05-15 | 2020-05-15 | Online continuous calcium system that removes of xylose mother liquor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020806908.2U CN212293612U (en) | 2020-05-15 | 2020-05-15 | Online continuous calcium system that removes of xylose mother liquor |
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| CN212293612U true CN212293612U (en) | 2021-01-05 |
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| CN202020806908.2U Active CN212293612U (en) | 2020-05-15 | 2020-05-15 | Online continuous calcium system that removes of xylose mother liquor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115161416A (en) * | 2022-06-25 | 2022-10-11 | 新疆冠农果茸股份有限公司 | Molasses chemical calcium removal system and method |
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2020
- 2020-05-15 CN CN202020806908.2U patent/CN212293612U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115161416A (en) * | 2022-06-25 | 2022-10-11 | 新疆冠农果茸股份有限公司 | Molasses chemical calcium removal system and method |
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