CN218076423U - Tail liquid treatment device of filter press - Google Patents
Tail liquid treatment device of filter press Download PDFInfo
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- CN218076423U CN218076423U CN202222419078.XU CN202222419078U CN218076423U CN 218076423 U CN218076423 U CN 218076423U CN 202222419078 U CN202222419078 U CN 202222419078U CN 218076423 U CN218076423 U CN 218076423U
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- distillation tower
- liquid
- distillation
- tower
- treatment device
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- 239000007788 liquid Substances 0.000 title claims abstract description 63
- 238000004821 distillation Methods 0.000 claims abstract description 100
- 238000010438 heat treatment Methods 0.000 claims abstract description 51
- 238000003860 storage Methods 0.000 claims abstract description 20
- 238000009833 condensation Methods 0.000 claims description 12
- 230000005494 condensation Effects 0.000 claims description 12
- 239000007791 liquid phase Substances 0.000 claims description 11
- 238000000605 extraction Methods 0.000 claims description 4
- 239000000706 filtrate Substances 0.000 claims 1
- 238000011084 recovery Methods 0.000 abstract description 5
- 238000003825 pressing Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 38
- 239000012071 phase Substances 0.000 description 8
- 239000000126 substance Substances 0.000 description 8
- 238000000926 separation method Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000010992 reflux Methods 0.000 description 6
- 238000005086 pumping Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000003960 organic solvent Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000007792 gaseous phase Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000009835 boiling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model relates to a tail liquid recovery processing technology field, concretely relates to pressure filter tail liquid processing apparatus, include: a distillation column; the heating device is coiled at the bottom of the inner side of the distillation tower; the tower top gas treatment device is communicated with the top of the distillation tower and is used for extracting, condensing and separating gas from liquid at the top of the distillation tower; the liquid storage tank is communicated with the bottom of the distillation tower through a pipeline and is used for storing liquid at the bottom of the distillation tower after distillation is finished; and the gas storage tank is communicated with the tower top gas treatment device through a pipeline and is used for storing the gas left after being treated by the tower top gas treatment device. The utility model discloses a set up top of the tower gas processing apparatus, extract, separate the gas of distillation column distillation, realize separating the complex composition in the filter-pressing tail liquid to retrieve the storage respectively, resource utilization is high, can participate in the reaction as the raw materials again with the resource after retrieving.
Description
Technical Field
The utility model relates to a tail liquid recovery processing technology field, concretely relates to pressure filter tail liquid processing apparatus.
Background
In the production process of the maleic anhydride catalyst, the maleic anhydride catalyst and the organic solvent are filtered and separated by a filter press to obtain a finished maleic anhydride catalyst product and a large amount of organic solvent tail liquid. The organic solvent tail liquid contains various components, and the direct discharge of the organic solvent tail liquid causes great damage to the environment and waste of resources.
In the conventional tail liquid recovery device, the recovery rate of the discharged material is low, the components of the recovered material are complex, and the recovered material is not separated, so that the tail liquid treatment device of the filter press is provided for solving the problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a pressure filter tail liquid processing apparatus to the rate of recovery to the discharge that proposes in solving above-mentioned background art is low, and retrieves the thing composition complicacy, does not carry out the problem of separating to retrieving the thing.
In order to solve the technical problem, the utility model provides a following technical scheme:
a filter press tails treatment apparatus, comprising:
a distillation column;
the heating device is coiled at the bottom of the inner side of the distillation tower;
the tower top gas treatment device is communicated with the top of the distillation tower and is used for extracting, condensing and separating gas from liquid at the top of the distillation tower;
the liquid storage tank is communicated with the bottom of the distillation tower through a pipeline and is used for storing liquid at the bottom of the distillation tower after distillation is finished;
and the gas storage tank is communicated with the tower top gas treatment device through a pipeline and is used for storing the gas left after being treated by the tower top gas treatment device.
Further, the overhead gas treatment device comprises at least one stage of suction pump and at least one stage of condenser.
The multistage air pump is matched with the multistage condenser, so that gas pumped out of the top of the distillation tower is subjected to sufficient condensation treatment, a gas phase formed under the dissipation effect is changed into a liquid phase again under the negative pressure condition of air pumping, and the separation of components of a recovered substance is realized.
Further, the air pump is communicated with the distillation tower through a pipeline, and the other end of the air pump is communicated with the condenser through a pipeline, so that the air at the top of the distillation tower is conveyed into the condenser and forms negative pressure in the distillation tower.
Under the negative pressure condition, the evaporation temperature of the substances in the distillation tower is low, and the energy consumption is low.
Further, the air conditioner also comprises a GV valve which is arranged behind the condenser and used for preventing gas from flowing backwards.
In the GV valve, gas flows in a one-way mode, so that gas backflow caused by pressure change in the feeding and discharging processes of the distillation tower is avoided.
And one end of the reflux pipeline is communicated with the condenser, the other end of the reflux pipeline is communicated with the distillation tower, and the reflux pipeline is used for conveying the liquid phase separated after condensation back to the distillation tower.
And returning the liquid phase generated by condensation, and feeding the liquid phase into the distillation tower again for distillation to ensure the separation effect of the recovered substances.
Further, the liquid distillation tower further comprises an LV valve, wherein the LV valve is arranged on the return pipeline and used for preventing liquid in the distillation tower from flowing back into the condenser.
Further, a gap is reserved between the heating device and the inner wall of the distillation tower.
The contact surface between the heating device and the substances in the distillation tower is increased, and the heat exchange efficiency is improved.
Furthermore, a heating inlet and a heating outlet of the heating device penetrate out of the distillation tower and are communicated with the outside, and the heating inlet is arranged above the heating outlet.
Heating steam enters from the heating inlet, in the heating device, a steam part is converted into condensed water and is discharged from the heating outlet together with the heating steam, and the condensed water moves downwards under the action of gravity, so that the accumulation in the heating device is avoided.
Furthermore, the distillation tower further comprises a liquid pump, and the liquid pump is arranged on a connecting pipeline between the distillation tower and the liquid storage tank.
After the distillation is finished, pumping the liquid in the distillation tower into the liquid storage tank by the liquid pumping pump.
The utility model has the advantages as follows:
1. the utility model discloses a set up top of the tower gas processing apparatus, extract, separate the gas of distillation column distillation, realize separating the complex composition in the filter-pressing tail liquid to retrieve the storage respectively, resource utilization rate is high, can participate in the reaction as the raw materials again with the resource after retrieving.
2. The utility model discloses a set up the aspiration pump and the at least one-level condenser of at least one-level, purify the gaseous phase at the distillation column top of the tower many times for the gaseous phase purity of separation is high.
3. The utility model discloses an effect of air-bleed pump for the inside negative pressure that forms of distillation column reduces distillation temperature, reduces distillation system's energy consumption.
4. The utility model discloses a set up backflow pipeline, carry the liquid phase that produces after the condensation back to the distillation column in, because of impurity is more in the liquid that the condensation produced, need get into the distillation column again and carry out the distillation separation.
5. The utility model discloses a set up the LV valve on return line, avoid leading to the liquid in the distillation column to flow backward into in the condenser because of pressure change in the condensation process.
6. The utility model discloses a heating device's structure setting, material and heating device's area of contact in the increase distillation column to produced comdenstion water flows downwards, flows from adding the export, avoids the comdenstion water to pile up in heating device.
Drawings
The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:
FIG. 1 is a schematic structural view of a tail liquid treatment device of a medium pressure filter of the present invention;
FIG. 2 is a schematic diagram of the overhead gas treatment unit of FIG. 1;
FIG. 3 is a schematic view of the heating apparatus of FIG. 1;
in the figure: 1. a distillation column; 2. a heating device; 3. a column top gas treatment unit; 4. a liquid storage tank; 5. a gas storage tank; 6. an air pump; 7. a condenser; 8. a GV valve; 9. a return line; 10. an LV valve; 11. heating the inlet; 12. a heating outlet; 13. and (4) a liquid pump.
Detailed Description
The present invention will be understood from the following description with reference to examples.
In one embodiment, as shown in fig. 1-3, a filter press tail liquid treatment apparatus comprises:
a distillation column 1;
the heating device 2 is coiled at the bottom of the inner side of the distillation tower 1;
the tower top gas treatment device 3 is communicated with the top of the distillation tower 1 and is used for extracting, condensing and separating gas from liquid at the top of the distillation tower 1;
the liquid storage tank 4 is communicated with the bottom of the distillation tower 1 through a pipeline and is used for storing liquid at the bottom of the distillation tower 1 after distillation is finished;
and the gas storage tank 5 is communicated with the tower top gas treatment device 3 through a pipeline and is used for storing the gas left after being treated by the tower top gas treatment device 3.
It will be appreciated that the overhead gas treatment unit 3 comprises at least one suction pump 6 and at least one condenser 7.
The multistage air pump 6 is matched with the multistage condenser 7, so that the gas pumped from the top of the distillation tower 1 is subjected to sufficient condensation treatment, the gas phase formed under the dissipation effect is changed into the liquid phase again under the negative pressure condition of air pumping, and the separation of the components of the recovered substances is realized.
It will be appreciated that a staggered arrangement of two suction pumps 6 and two condensers 7 is included.
It will be understood that the suction pump 6 is communicated with the distillation column 1 through a pipe, and the other end of the suction pump 6 is communicated with the condenser 7 through a pipe for feeding the gas at the top of the distillation column 1 into the condenser 7 and forming a negative pressure in the distillation column 1.
Under the condition of negative pressure, the evaporation temperature of the substances in the distillation tower 1 is low, and the energy consumption is low.
It will be appreciated that a GV valve 8 is also included, the GV valve 8 being disposed after the condenser 7 for preventing gas backflow.
In the GV valve 8, the gas flows in a single direction, so that the gas backflow caused by pressure change in the feeding and discharging processes of the distillation tower 1 is avoided.
It will be appreciated that a reflux line 9 is also included, the reflux line 9 communicating with the condenser 7 at one end and with the distillation column 1 at the other end, the reflux line 9 being adapted to convey the separated liquid phase after condensation back to the distillation column 1.
The liquid phase generated by condensation is returned and enters the distillation tower 1 again for distillation, thereby ensuring the separation effect of the recovered substances.
It will be appreciated that there is also included an LV valve 10, LV valve 10 being provided on the return line 9 for preventing liquid in the distillation column 1 from back-filling the condenser 7.
It will be appreciated that a gap is left between the heating means 2 and the inner wall of the distillation column 1.
The contact surface between the heating device 2 and the substances in the distillation tower 1 is increased, and the heat exchange efficiency is improved.
It can be understood that the heating inlet 11 and the heating outlet 12 of the heating device 2 penetrate out of the distillation tower 1 and are communicated with the outside, and the heating inlet 11 is arranged above the heating outlet 12.
Heating steam enters from the heating inlet 11, part of the steam is converted into condensed water in the heating device 2 and is discharged from the heating outlet 12 together with the heating steam, and the condensed water moves downwards under the action of gravity, so that accumulation in the heating device 2 is avoided.
It is understood that the distillation tower further comprises an extraction pump 13, and the extraction pump 13 is arranged on a connecting pipeline between the distillation tower 1 and the liquid storage tank 4.
After the distillation is completed, the liquid in the distillation column 1 is pumped to the liquid storage tank 4 by the liquid-pumping pump 13.
In another embodiment, as shown in fig. 1-3, in use, the filter pressing tail liquid is firstly added into the distillation tower 1 through the feed inlet, when the required amount is added, the feed inlet is closed, the heating device 2 is operated, steam is conveyed to the heating inlet through an external pipeline, the steam enters the heating device 2 from the heating inlet, the steam passes through the pipeline of the heating device 2 from top to bottom, and condensed water formed in the heat exchange process flows out from the heating outlet 12 along with the steam and enters the external pipeline again.
Under the effect of the heating device 2 at the bottom of the distillation tower 1, the liquid in the distillation tower 1 is heated, and the gas phase at the top of the distillation tower 1 is continuously extracted by the air extracting pump 6, so that negative pressure is formed in the distillation tower 1, the boiling temperature of the liquid is reduced, and the heating power consumption is reduced.
Under the distillation action, the gas phase at the top of the distillation tower 1 enters a condenser 7 through an air suction pump 6, the condenser 7 cools the entering gas phase, the gas phase is partially converted into a liquid phase, more impurities in the generated liquid phase are generated and then return to the distillation tower 1 through a return pipeline 9 for distillation and purification, the residual gas phase enters a next-stage air suction pump 6 and the condenser 7 through a GV valve 8, the condensation step is repeated, and the condensation temperature of the next-stage condenser 7 is lower than that of the previous-stage condenser 7.
The gas phase treated by the tower top gas treatment device 3 enters a gas storage tank 5 for storage; after the distillation process is finished, the residual liquid in the distillation tower 1 enters the liquid storage tank 4 through a pipeline under the action of the liquid drawing pump 13, and the distillation separation of the filter pressing tail liquid is finished.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
The above description is only an example of the present invention and is not intended to limit the present invention. Various modifications and variations of the present invention will be apparent to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (9)
1. A filter press tail liquid treatment device is characterized by comprising:
a distillation column (1);
the heating device (2) is coiled at the bottom of the inner side of the distillation tower (1);
the tower top gas treatment device (3) is communicated with the top of the distillation tower (1) and is used for extracting, condensing and separating gas from liquid at the top of the distillation tower (1);
the liquid storage tank (4) is communicated with the bottom of the distillation tower (1) through a pipeline and is used for storing liquid at the bottom of the distillation tower (1) after distillation is finished;
the gas storage tank (5) is communicated with the tower top gas treatment device (3) through a pipeline and is used for storing residual gas treated by the tower top gas treatment device (3).
2. The filter press tails treatment according to claim 1, wherein the overhead gas treatment unit (3) comprises at least one suction pump (6) and at least one condenser (7).
3. The filter press tail liquid treatment device according to claim 2, characterized in that the suction pump (6) is communicated with the distillation tower (1) through a pipeline, and the other end of the suction pump (6) is communicated with the condenser (7) through a pipeline for conveying the gas at the top of the distillation tower (1) into the condenser (7) and forming a negative pressure in the distillation tower (1).
4. The filter press tail liquid treatment device according to claim 2, further comprising a GV valve (8), wherein the GV valve (8) is disposed behind the condenser (7) for preventing gas backflow.
5. The filter press tail liquid treatment device according to claim 2, further comprising a return pipeline (9), wherein one end of the return pipeline (9) is communicated with the condenser (7), the other end is communicated with the distillation tower (1), and the return pipeline (9) is used for conveying the liquid phase separated after condensation back to the distillation tower (1).
6. The filter press filtrate tail liquid treatment apparatus according to claim 5, further comprising an LV valve (10), wherein the LV valve (10) is provided on the return line (9) for preventing the liquid in the distillation column (1) from being poured into the condenser (7).
7. The filter press tail liquid treatment device according to claim 1, wherein a gap is left between the heating device (2) and the inner wall of the distillation tower (1).
8. The filter press tail liquid treatment device according to claim 7, wherein a heating inlet (11) and a heating outlet (12) of the heating device (2) penetrate out of the distillation tower (1) and are communicated with the outside, and the heating inlet (11) is arranged above the heating outlet (12).
9. The filter press tail liquid treatment device according to claim 1, characterized by further comprising a liquid extraction pump (13), wherein the liquid extraction pump (13) is arranged on a connecting pipeline between the distillation tower (1) and the liquid storage tank (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222419078.XU CN218076423U (en) | 2022-09-13 | 2022-09-13 | Tail liquid treatment device of filter press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222419078.XU CN218076423U (en) | 2022-09-13 | 2022-09-13 | Tail liquid treatment device of filter press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218076423U true CN218076423U (en) | 2022-12-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222419078.XU Active CN218076423U (en) | 2022-09-13 | 2022-09-13 | Tail liquid treatment device of filter press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218076423U (en) |
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2022
- 2022-09-13 CN CN202222419078.XU patent/CN218076423U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Tail liquid treatment device of filter press Effective date of registration: 20230926 Granted publication date: 20221220 Pledgee: Qi commercial bank Limited by Share Ltd. Linzi branch Pledgor: Zibo xianglizhi hi tech Material Co.,Ltd. Registration number: Y2023980059365 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20221220 Pledgee: Qi commercial bank Limited by Share Ltd. Linzi branch Pledgor: Zibo xianglizhi hi tech Material Co.,Ltd. Registration number: Y2023980059365 |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240508 Address after: No.200 Huashan Road, private park, high tech Zone, Zibo City, Shandong Province Patentee after: Shandong Qilu Keli Chemical Research Institute Co.,Ltd. Country or region after: China Address before: Northwest side of former Fengjia Village, Jinshan Town, Linzi District, Zibo City, Shandong Province, 255400 Patentee before: Zibo xianglizhi hi tech Material Co.,Ltd. Country or region before: China |