CN219128558U - Methyl methacrylate liquid phase ejection of compact filtration system - Google Patents
Methyl methacrylate liquid phase ejection of compact filtration system Download PDFInfo
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- CN219128558U CN219128558U CN202223386803.4U CN202223386803U CN219128558U CN 219128558 U CN219128558 U CN 219128558U CN 202223386803 U CN202223386803 U CN 202223386803U CN 219128558 U CN219128558 U CN 219128558U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The utility model relates to a methyl methacrylate liquid-phase discharging and filtering system, which comprises a quenching tower, a turbid liquid tank, a first filter, a second filter, a clear liquid tank, an alkaline washing tank, a water washing tank and a gas tank; according to the utility model, the first filter and the second filter are arranged for filtering terephthalic acid particles, the filtering efficiency is high, the filtrate outlets of the first filter and the second filter are respectively communicated with the reflux port of the quenching tower through the sixth pipeline and the seventh pipeline to form a filtrate circulation loop, the filtrate can be filtered for multiple times, the filtering effect is improved, and in addition, after the filtering is finished, the operations of deslagging, alkaline washing and water washing are sequentially carried out through the air tank, the alkaline washing tank and the water washing tank, so that filter cakes and residual liquid in the filters are exhausted, the influence on the next batch of material filtering is avoided, and the filtering effect is improved.
Description
Technical Field
The utility model relates to the technical field of filtering equipment, in particular to a methyl methacrylate liquid-phase discharging filtering system.
Background
Methyl Methacrylate (MMA) is a volatile liquid, has strong pungency, is an important organic chemical raw material, and industrial methods for preparing MMA include an acetone cyanohydrin method, an isobutylene oxidation method, an ethylene carbonylation method and the like, wherein when methyl methacrylate is prepared by the isobutylene oxidation method, methacrylic acid is firstly prepared and formed, and is usually obtained by oxidation reaction of methacrolein, and the obtained methacrylic acid aqueous solution contains terephthalic acid particles, so that the quality of methyl methacrylate products is influenced, and the terephthalic acid particles are required to be removed.
Accordingly, the present utility model provides a methyl methacrylate liquid-phase discharge filtration system that solves the above-mentioned problems.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a methyl methacrylate liquid-phase discharging and filtering system which can effectively remove terephthalic acid particles and has high filtering efficiency and good filtering effect.
In order to solve the technical problems, the technical scheme of the utility model is as follows: a methyl methacrylate liquid-phase discharging and filtering system is characterized in that: comprises a quenching tower, a turbid liquid tank, a first filter, a second filter, a clear liquid tank, an alkaline washing tank, a water washing tank and a gas tank;
the liquid outlet of the quenching tower is communicated with the liquid inlet of the first filter through a first pipeline and is communicated with the liquid inlet of the second filter through a second pipeline;
a third pipeline is communicated with a material port of the turbid liquid tank, two first branch pipelines are formed by branching the third pipeline, the third pipeline is respectively communicated with the first pipeline and the second pipeline, and a first pneumatic pump is arranged on the third pipeline;
the filtrate outlet of the first filter is communicated with the liquid inlet of the liquid-cleaning tank through a fourth pipeline, the filtrate outlet of the second filter is communicated with the fourth pipeline through a fifth pipeline, the reflux port of the quench tower is communicated with the fourth pipeline through a sixth pipeline and is communicated with the fifth pipeline through a seventh pipeline, the top liquid outlet of the first filter is communicated with an eleventh pipeline, the eleventh pipeline is branched to form two fourth branch pipelines, the fourth branch pipelines are respectively communicated with the liquid inlet of the alkaline washing tank and the liquid inlet of the water washing tank, the top liquid outlet of the second filter is communicated with the eleventh pipeline through a twelfth pipeline, the bottom liquid outlet of the first filter is connected with the first pipeline through a nineteenth pipeline, and the bottom liquid outlet of the second filter is connected with the second pipeline through a twentieth pipeline;
an eighth pipeline is communicated with a liquid outlet of the alkaline washing tank, a second pneumatic pump is installed on the eighth pipeline, the eighth pipeline is branched to form two second branch pipelines, the two second branch pipelines are respectively communicated with the first pipeline and the second pipeline, a ninth pipeline is communicated with a liquid inlet of the alkaline washing tank, and the ninth pipeline is branched to form two third branch pipelines which are respectively communicated with the fourth pipeline and the fifth pipeline;
the liquid outlet of the water washing tank is communicated with an eighth pipeline through a tenth pipeline, and is communicated with a ninth pipeline through a thirteenth pipeline, and a third pneumatic pump is arranged on the tenth pipeline;
the gas outlet of the gas tank is communicated with a fourteenth pipeline, the fourteenth pipeline is branched to form two fifth branch pipelines which are respectively communicated with the gas inlet of the first filter and the gas inlet of the second filter, and the two sixth branch pipelines are branched to form two sixth branch pipelines which are respectively communicated with the fourth pipeline and the fifth pipeline.
Further, the bottoms of the first filter and the second filter are respectively provided with a slag discharge port, a slag discharge valve is arranged at the slag discharge port, and a filter cake slag recovery box is arranged below the slag discharge port.
Further, the installation height of the first filter and the second filter is higher than the heights of the turbid liquid tank, the clear liquid tank, the alkaline washing tank and the water washing tank.
Further, the air outlet of the first filter is communicated with an emptying pipeline, a first safety valve is arranged on the emptying pipeline, the air outlet of the second filter is communicated with the emptying pipeline through a fifteenth pipeline, and a second safety valve is arranged on the fifteenth pipeline.
Further, a linear observation mirror is arranged on each of the fourth pipeline and the fifth pipeline.
Further, the water inlet of the washing tank is communicated with the eighth pipeline through a sixteenth pipeline, and the water inlet of the alkaline washing tank is communicated with the sixteenth pipeline through a seventeenth pipeline.
The utility model has the advantages that:
(1) According to the utility model, the first filter and the second filter are arranged for filtering the terephthalic acid particles, the filtering efficiency is high, the filtrate outlets of the first filter and the second filter are respectively communicated with the reflux port of the quenching tower through the sixth pipeline and the seventh pipeline to form a filtrate circulation loop, the filtrate can be filtered for multiple times, the filtering effect is improved, and in addition, after the filtering is finished, the operations of deslagging, alkaline washing and water washing are sequentially carried out through the air tank, the alkaline washing tank and the water washing tank, so that the filter cake and residual liquid in the filter are exhausted, the influence on the next batch of material filtering is avoided, and the filtering effect is further improved.
(2) According to the utility model, the filter cake slag recovery box is arranged below the slag discharge port, and filter cake residues are collected, so that terephthalic acid is recovered and utilized.
(3) The installation heights of the first filter and the second filter are higher than the heights of the turbid liquid tank, the clear liquid tank, the alkaline washing tank and the water washing tank, so that liquid backflow can be effectively avoided.
(4) According to the utility model, the linear observation mirrors are arranged on the fourth pipeline and the fifth pipeline, so that the clarity of filtrate of the first filter and the second filter can be conveniently observed, and the filtering condition of materials can be intuitively judged.
(5) According to the utility model, the sixteenth pipeline and the seventeenth pipeline are arranged, so that water in the water washing tank is supplemented to the alkaline washing tank through the tenth pipeline, the eighth pipeline, the sixteenth pipeline and the seventeenth pipeline, and alkali liquor configuration in the alkaline washing tank is facilitated.
Drawings
The utility model will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a schematic illustration of the communication of a methyl methacrylate liquid phase draw filter system of the present utility model.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The methyl methacrylate liquid-phase discharging and filtering system shown in fig. 1 comprises a quenching tower 101, a turbid liquid tank 102, a first filter 103, a second filter 104, a clear liquid tank 105, an alkaline washing tank 106, a water washing tank 107 and a gas tank 108.
The two liquid outlets of the quenching tower 101 are respectively a first liquid outlet and a second liquid outlet, the first liquid outlet is communicated with the liquid inlet of the first filter 103 through a first pipeline 201, and the second liquid outlet is communicated with the liquid inlet of the second filter 104 through a second pipeline 202;
a third pipeline 203 is communicated with a material port of the turbid liquid tank 102, the third pipeline 203 is branched to form two first branch pipelines which are respectively communicated with a first pipeline 201 and a second pipeline 202, and a first pneumatic pump 301 is arranged on the third pipeline 203;
the filtrate outlet of the first filter 103 is communicated with the liquid inlet of the clear liquid tank 105 through a fourth pipeline 204, the filtrate outlet of the second filter 104 is communicated with the fourth pipeline 204 through a fifth pipeline 205, the reflux inlet of the quench tower 101 is communicated with the fourth pipeline 204 through a sixth pipeline 206 and is communicated with the fifth pipeline 205 through a seventh pipeline 207, the top liquid outlet of the first filter 103 is communicated with an eleventh pipeline 211, the eleventh pipeline 211 is branched to form two fourth branch pipelines, the eleventh pipeline 211 is respectively communicated with the liquid inlet of the alkaline wash tank 106 and the liquid inlet of the water wash tank 107, the top liquid outlet of the second filter 104 is communicated with an eleventh pipeline 211 through a twelfth pipeline 212, the bottom liquid outlet of the first filter 103 is connected with the first pipeline 201 through a nineteenth pipeline, and the bottom liquid outlet of the second filter 104 is connected with the second pipeline 202 through a twentieth pipeline 220;
an eighth pipeline 208 is communicated with the liquid outlet of the alkaline washing tank 106, a second pneumatic pump 302 is installed on the eighth pipeline 208, the eighth pipeline 208 is branched to form two second branch pipelines, the two second branch pipelines are respectively communicated with the first pipeline 201 and the second pipeline 202, a ninth pipeline 209 is communicated with the liquid inlet of the alkaline washing tank 106, the ninth pipeline 209 is branched to form two third branch pipelines, and the two third branch pipelines are respectively communicated with the fourth pipeline 204 and the fifth pipeline 205;
the liquid outlet of the water washing tank 107 is communicated with an eighth pipeline 208 through a tenth pipeline 210 and is communicated with a ninth pipeline 209 through a thirteenth pipeline 213, and a third pneumatic pump 303 is arranged on the tenth pipeline 210;
the air outlet of the air tank 108 is communicated with a fourteenth pipeline 214, the fourteenth pipeline 214 is branched to form two fifth branch pipelines which are respectively communicated with the air inlet of the first filter 103 and the air inlet of the second filter 104, and is branched to form two sixth branch pipelines which are respectively communicated with the fourth pipeline 204 and the fifth pipeline 205.
In this embodiment, the bottoms of the first filter 103 and the second filter 104 are both provided with a slag discharge port, a slag discharge valve 401 is installed at the slag discharge port, and a filter cake and slag recovery tank 402 is arranged below the slag discharge port for collecting filter cake and slag, so as to realize terephthalic acid recycling. The installation height of the first filter 103 and the second filter 104 is higher than the heights of the turbid liquid tank 102, the clear liquid tank 105, the alkaline washing tank 106 and the water washing tank 107, so that liquid backflow is avoided. The air outlet of the first filter 103 is communicated with an air vent pipeline 218, a first safety valve 403 is arranged on the air vent pipeline 218, the air outlet of the second filter 104 is communicated with the air vent pipeline 218 through a fifteenth pipeline 215, and a second safety valve 404 is arranged on the fifteenth pipeline 215. The fourth pipeline 204 and the fifth pipeline 205 are respectively provided with a linear observation mirror 405, so that the clarity of filtrate of the first filter 103 and the second filter 104 can be conveniently observed, and the filtering condition of materials can be intuitively judged. The water inlet of the water washing tank 107 is communicated with the eighth pipeline 208 through the sixteenth pipeline 216, the water inlet of the alkaline washing tank 106 is communicated with the sixteenth pipeline 216 through the seventeenth pipeline 217, and the water in the water washing tank 107 is supplemented to the alkaline washing tank 106 through the tenth pipeline 210, the eighth pipeline 208, the sixteenth pipeline 216 and the seventeenth pipeline 217, so that the alkaline solution in the alkaline washing tank 106 is conveniently configured.
Corresponding valves are arranged on each pipeline of the filtering system, which belongs to the conventional technology and are not described in detail herein.
Working principle:
the stock solution is conveyed, the stock solution in the quenching tower is conveyed into the first filter 103 and the second filter 104, or the stock solution is conveyed into the first filter 103 and the second filter 104 from the turbid liquid tank 102 storing the stock solution until the stock solution fills the first filter 103 and the second filter 104;
the stock solution is filtered, after the stock solution is filtered once through filter elements in the first filter 103 and the second filter 104, the filtrate is still turbid at the moment, the filtrate is returned to the turbid liquid tank 102 for repeated filtration, and after the filtrate is clear, the filtrate is conveyed to the clear liquid tank 105;
the residual liquid is emptied, the gas tank 108 blows air into the first filter 103 and the second filter 104 through the air inlet through the fourteenth pipeline 214 and the fifth branch pipeline, and residual raw liquid is discharged into the turbid liquid tank 102 through the bottom liquid discharge port;
the slag is discharged, the gas tank 108 blows air into the first filter 103 and the second filter 104 through the air inlet through a fourteenth pipeline 214 and a fifth branch pipeline, the solid phase materials stuck on the filter element are dried and compacted, the gas is discharged through a filtrate outlet, after the gas tank 108 reversely blows air into the first filter 103 and the second filter 104 through the filtrate outlet through the fourteenth pipeline 214 and the sixth branch pipeline, the gas is discharged through the air outlet, the filter cake compacted on the filter element is fallen, and the fallen filter cake is discharged through a slag discharge port at the bottom;
alkaline washing, wherein alkaline liquid in the alkaline washing tank 106 enters the first filter 103 and the second filter 104 through the liquid inlet, is discharged through the top liquid outlet and the filtrate outlet and returns to the alkaline washing tank 106, and is repeatedly performed for a plurality of times until washing is completed, and waste liquid is discharged completely;
the clean water in the water washing tank 107 enters the first filter 103 and the second filter 104 through the liquid inlet, is discharged through the top liquid outlet and the filtrate outlet and returns to the water washing tank 107, and is repeatedly carried out for a plurality of times until the washing is completed, and the waste liquid is discharged completely, thus completing the operation.
The methyl methacrylate liquid-phase discharging and filtering system provided by the utility model is used for filtering terephthalic acid particles, and has the advantages of high filtering efficiency and good filtering effect.
It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (6)
1. A methyl methacrylate liquid phase discharge filtration system, characterized in that: comprises a quenching tower, a turbid liquid tank, a first filter, a second filter, a clear liquid tank, an alkaline washing tank, a water washing tank and a gas tank;
the liquid outlet of the quenching tower is communicated with the liquid inlet of the first filter through a first pipeline and is communicated with the liquid inlet of the second filter through a second pipeline;
a third pipeline is communicated with a material port of the turbid liquid tank, two first branch pipelines are formed by branching the third pipeline, the third pipeline is respectively communicated with the first pipeline and the second pipeline, and a first pneumatic pump is arranged on the third pipeline;
the filtrate outlet of the first filter is communicated with the liquid inlet of the liquid-cleaning tank through a fourth pipeline, the filtrate outlet of the second filter is communicated with the fourth pipeline through a fifth pipeline, the reflux port of the quench tower is communicated with the fourth pipeline through a sixth pipeline and is communicated with the fifth pipeline through a seventh pipeline, the top liquid outlet of the first filter is communicated with an eleventh pipeline, the eleventh pipeline is branched to form two fourth branch pipelines, the fourth branch pipelines are respectively communicated with the liquid inlet of the alkaline washing tank and the liquid inlet of the water washing tank, the top liquid outlet of the second filter is communicated with the eleventh pipeline through a twelfth pipeline, the bottom liquid outlet of the first filter is connected with the first pipeline through a nineteenth pipeline, and the bottom liquid outlet of the second filter is connected with the second pipeline through a twentieth pipeline;
an eighth pipeline is communicated with a liquid outlet of the alkaline washing tank, a second pneumatic pump is installed on the eighth pipeline, the eighth pipeline is branched to form two second branch pipelines, the two second branch pipelines are respectively communicated with the first pipeline and the second pipeline, a ninth pipeline is communicated with a liquid inlet of the alkaline washing tank, and the ninth pipeline is branched to form two third branch pipelines which are respectively communicated with the fourth pipeline and the fifth pipeline;
the liquid outlet of the water washing tank is communicated with an eighth pipeline through a tenth pipeline, and is communicated with a ninth pipeline through a thirteenth pipeline, and a third pneumatic pump is arranged on the tenth pipeline;
the gas outlet of the gas tank is communicated with a fourteenth pipeline, the fourteenth pipeline is branched to form two fifth branch pipelines which are respectively communicated with the gas inlet of the first filter and the gas inlet of the second filter, and the two sixth branch pipelines are branched to form two sixth branch pipelines which are respectively communicated with the fourth pipeline and the fifth pipeline.
2. The methyl methacrylate liquid-phase draw filter system of claim 1, wherein: the bottoms of the first filter and the second filter are respectively provided with a slag discharge port, a slag discharge valve is arranged at the slag discharge port, and a filter cake slag recovery box is arranged below the slag discharge port.
3. The methyl methacrylate liquid-phase draw filter system of claim 1, wherein: the installation height of the first filter and the second filter is higher than the heights of the turbid liquid tank, the clear liquid tank, the alkaline washing tank and the water washing tank.
4. The methyl methacrylate liquid-phase draw filter system of claim 1, wherein: the air outlet of the first filter is communicated with an emptying pipeline, a first safety valve is arranged on the emptying pipeline, the air outlet of the second filter is communicated with the emptying pipeline through a fifteenth pipeline, and a second safety valve is arranged on the fifteenth pipeline.
5. The methyl methacrylate liquid-phase draw filter system of claim 1, wherein: and the fourth pipeline and the fifth pipeline are provided with linear observation mirrors.
6. The methyl methacrylate liquid-phase draw filter system of claim 1, wherein: the water inlet of the washing tank is communicated with the eighth pipeline through a sixteenth pipeline, and the water inlet of the alkaline washing tank is communicated with the sixteenth pipeline through a seventeenth pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223386803.4U CN219128558U (en) | 2022-12-17 | 2022-12-17 | Methyl methacrylate liquid phase ejection of compact filtration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223386803.4U CN219128558U (en) | 2022-12-17 | 2022-12-17 | Methyl methacrylate liquid phase ejection of compact filtration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219128558U true CN219128558U (en) | 2023-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223386803.4U Active CN219128558U (en) | 2022-12-17 | 2022-12-17 | Methyl methacrylate liquid phase ejection of compact filtration system |
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| Country | Link |
|---|---|
| CN (1) | CN219128558U (en) |
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- 2022-12-17 CN CN202223386803.4U patent/CN219128558U/en active Active
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