CN213609851U - Environment-friendly energy-saving solvent rectification recycling system - Google Patents
Environment-friendly energy-saving solvent rectification recycling system Download PDFInfo
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- CN213609851U CN213609851U CN202022039094.7U CN202022039094U CN213609851U CN 213609851 U CN213609851 U CN 213609851U CN 202022039094 U CN202022039094 U CN 202022039094U CN 213609851 U CN213609851 U CN 213609851U
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Abstract
The utility model relates to an environmental protection and energy saving type solvent rectification recycling system, which comprises a charge pump, a first rectification system, a second rectification system, a solvent metering tank, a dissolving kettle, a resin kettle and a plurality of defoaming kettles, wherein the first rectification system comprises a first rotating bed, a first reboiler, a first condenser, a kettle liquid pump and a first discharge pump, and the second rectification system comprises a second rotating bed, a second reboiler, a second condenser, a second discharge pump and a product discharge pump; after a raw material inlet enters the first rectifying system and the second rectifying system through a feed pump, a solvent produced by rectification enters the solvent metering tank through the solvent feed pipe, and the solvent metering tank, the dissolving kettle, the resin kettle and the defoaming kettles are sequentially connected. The utility model discloses the solvent is retrieved to more environmental protection high efficiency, retrieves waste water waste residue simultaneously, environmental protection, energy saving.
Description
Technical Field
The utility model relates to a chemical production technical field especially relates to an environmental protection and energy saving type solvent rectification recycling system.
Background
A dimethylacetamide solvent is needed in the production of the PI membrane, and dimethylacetamide only participates in the action of a dissolved solute in a process chain in the production process of the PI membrane and must be recycled. In the traditional recovery method, the content of the solvent obtained after recovery is not high (the concentration is 70%), and the recovered solvent cannot be directly used (the national standard is 99.95%), so most PI film manufacturers send the recovered solvent back to the solvent manufacturers for rectification processing. At present, dimethylacetamide manufacturers used nationwide adopt a traditional rectifying tower process to carry out rectification, and the process has the defects of large investment, low efficiency and the like, and particularly, the generated wastewater cannot be treated.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned not enough, provide an environmental protection and energy saving type solvent rectification recovery system of recycling, retrieve solvent reuse, the energy saving.
The purpose of the utility model is realized like this:
an environment-friendly energy-saving solvent rectification recycling system comprises a feed pump, a first rectification system, a second rectification system, a solvent metering tank, a dissolving kettle, a resin kettle and a plurality of defoaming kettles, wherein a raw material inlet enters the first rectification system and the second rectification system through the feed pump, a solvent produced by rectification enters the solvent metering tank through a solvent feed pipe, and the solvent metering tank, the dissolving kettle, the resin kettle and the defoaming kettles are sequentially connected; be equipped with the center pin in the solvent metering tank and be connected with the motor, be equipped with agitator, well agitator and lower agitator on the center pin from top to bottom, the agitator includes the axle sleeve and is no less than two paddle fixed axle through axle sleeve and central pin connection down, and every paddle fixed axle passes through the connecting axle to be connected with the paddle, and the distance of every paddle between fixed epaxial fixed position of paddle and center pin is steadilyd decrease in proper order.
Further, the first rectification system comprises a first rotating bed, a first reboiler, a first condenser, a kettle liquid pump and a first discharge pump, and the second rectification system comprises a second rotating bed, a second reboiler, a second condenser, a second discharge pump and a product discharge pump;
the raw material inlet is communicated with a first rotating bed through a feeding pump, the top of the first rotating bed is provided with an outlet communicated with a first condenser, the bottom of the first rotating bed is provided with a discharge hole communicated with a first reboiler, the bottom of the first condenser is divided into two pipelines after passing through a first discharge pump, one pipeline is connected with the first rotating bed, and the other pipeline is connected with wastewater treatment; the upper part of the first reboiler is provided with a solvent pipeline communicated with the first rotating bed, the bottom of the first reboiler is provided with a solvent pipeline which is divided into two pipelines after passing through a kettle liquid pump, one pipeline is connected with the second rotating bed, and the other pipeline is connected with the first reboiler;
the first condenser is communicated with a vacuum buffer tank, and the vacuum buffer tank is connected with a vacuum circulating water tank through a vacuum pump;
an outlet arranged at the top of the second rotating bed is communicated with a second condenser through a solvent pipeline, a discharge hole arranged at the bottom of the second rotating bed is communicated with a second reboiler, a solvent pipeline arranged at the upper part of the second reboiler is communicated with the second rotating bed, the solvent pipeline arranged at the bottom of the second rotating bed is divided into two pipelines after passing through a second discharge pump, one pipeline is connected with the second reboiler, and the other pipeline is connected with a waste residue area;
the bottom of the second condenser is divided into two pipelines after passing through a product discharge pump, one pipeline is connected with the second rotating bed, and the other pipeline is connected with a solvent feeding pipe; and a pipeline is arranged on one side of the second condenser and is connected with the vacuum buffer tank.
Further, the solvent feeding pipe is led into the solvent metering tank, the bottom of the solvent metering tank is provided with an outlet connected with an inlet of the dissolving kettle, an outlet of the dissolving kettle is connected with an inlet of the resin kettle through a first filter, and an outlet of the resin kettle is connected with a second filter and then is respectively connected with the first defoaming kettle, the second defoaming kettle and the third defoaming kettle;
the dissolving kettle, the resin kettle, the second filter, the first defoaming kettle, the second defoaming kettle and the third defoaming kettle are all connected with an air pressure stabilizing tank; and the solvent metering tank, the first defoaming kettle, the second defoaming kettle and the third defoaming kettle are all connected with a vacuum pressure stabilizing tank through vacuum tubes.
Further, the bottom exit linkage casting machine of first deaeration cauldron, second deaeration cauldron and third deaeration cauldron, the bottom of dissolving cauldron, resin cauldron, first deaeration cauldron, second deaeration cauldron and third deaeration cauldron is equipped with the cooling water import, and the lateral wall all is equipped with the cooling water export for leading-in cooling water cooling back return water.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses effectively provide a complete system that solvent recovery was recycled, the solvent is retrieved to the environmental protection high efficiency, retrieves waste water waste residue simultaneously, environmental protection, energy saving.
Drawings
Fig. 1 is a schematic structural diagram of the environment-friendly energy-saving solvent rectification recycling system of the utility model.
Fig. 2 is a schematic diagram of the rectification recovery system of the present invention.
Fig. 3 is a schematic diagram of a resin reaction system according to the present invention.
Wherein:
the system comprises a feed pump 1, a first rectification system 2, a first rotating bed 2.1, a first reboiler 2.2, a first condenser 2.3, a kettle liquid pump 2.4, a first discharging pump 2.5, a second rectification system 3, a second rotating bed 3.1, a second reboiler 3.2, a second condenser 3.3, a second discharging pump 3.4, a product discharging pump 3.5, a vacuum buffer tank 4, a vacuum pump 5, a vacuum circulating water tank 6, a solvent metering tank 7, a dissolving kettle 8, a resin kettle 9, a first defoaming kettle 10, a second defoaming kettle 11, a third defoaming kettle 12, an air pressure stabilizing tank 13, a vacuum pressure stabilizing tank 14, a first filter 15 and a second filter 16.
Detailed Description
For better understanding of the technical solution of the present invention, the following detailed description will be made with reference to the accompanying drawings. It should be understood that the following embodiments are not intended to limit the embodiments of the present invention, but only the embodiments of the present invention. It should be noted that the description of the positional relationship of the components, such as the component a is located above the component B, is based on the description of the relative positions of the components in the drawings, and is not intended to limit the actual positional relationship of the components.
Example 1:
referring to fig. 1-3, fig. 1 depicts a schematic structural diagram of the present invention. As shown in the figure, the utility model relates to an environmental protection and energy saving type solvent rectification system of recycling, it includes charge pump 1, first rectification system 2, second rectification system 3, solvent metering tank 7, dissolve cauldron 8, resin cauldron 9 and a plurality of deaeration cauldron, first rectification system 2 includes first revolving bed 2.1, first reboiler 2.2, first condenser 2.3, cauldron liquid pump 2.4 and first discharge pump 2.5, second rectification system 3 includes second revolving bed 3.1, second reboiler 3.2, second condenser 3.3, second discharge pump 3.4 and product discharge pump 3.5.
The raw material inlet is communicated with a first rotating bed 2.1 through a feeding pump 1, the top of the first rotating bed 2.1 is provided with an outlet communicated with a first condenser 2.3, the bottom of the first rotating bed 2.1 is provided with a discharge hole communicated with a first reboiler 2.2, the bottom of the first condenser 2.3 is divided into two pipelines after passing through a first discharge pump 2.5, one pipeline is connected with the first rotating bed 2.1, and the other pipeline is connected with wastewater treatment; the upper part of the first reboiler 2.2 is provided with a solvent pipeline communicated with the first rotating bed 2.1, the bottom part of the first reboiler is provided with a solvent pipeline which is divided into two pipelines after passing through a kettle liquid pump 2.4, one pipeline is connected with the second rotating bed 3.1, and the other pipeline is connected with the first reboiler 2.2;
the first condenser 2.3 is communicated with a vacuum buffer tank 4, and the vacuum buffer tank 14 is connected with a vacuum circulating water tank 6 through a vacuum pump 5.
An outlet arranged at the top of the second rotating bed 3.1 is communicated with a second condenser 3.3 through a solvent pipeline, a discharge port arranged at the bottom is communicated with a second reboiler 3.2, a solvent pipeline arranged at the upper part of the second reboiler 3.2 is communicated with the second rotating bed 3.1, the solvent pipeline arranged at the bottom is divided into two pipelines after passing through a second discharge pump 3.4, one pipeline is connected with the second reboiler 3.2 in a return mode, and the other pipeline is connected with a waste residue area;
the bottom of the second condenser 3.3 is divided into two pipelines after passing through a product discharge pump 3.5, one pipeline is connected with the second rotating bed 3.1, and the other pipeline is connected with a solvent feeding pipe.
And a pipeline is arranged on one side of the second condenser 3.3 and is connected with the vacuum buffer tank 4.
Leading-in solvent metering tank 7 of solvent inlet pipe, the bottom of solvent metering tank 7 is equipped with export and the access connection of dissolving kettle 8, dissolving kettle 8's export is through the access connection of first filter 15 with resin kettle 9, be connected with first deaeration cauldron 10, second deaeration cauldron 11 and third deaeration cauldron 12 respectively behind resin kettle 9's the exit linkage second filter 16, the bottom exit linkage casting machine of first deaeration cauldron 10, second deaeration cauldron 11 and third deaeration cauldron 12, dissolving kettle 8, resin kettle 9, first deaeration cauldron 10, second deaeration cauldron 11 and third deaeration cauldron 12's bottom is equipped with the cooling water import, and the lateral wall all is equipped with the cooling water export for leading-in cooling water cooling back return water.
The dissolving kettle 8, the resin kettle 9, the second filter 16, the first defoaming kettle 10, the second defoaming kettle 11 and the third defoaming kettle 12 are all connected with an air pressure stabilizing tank 13, air is input, and the air pressure stabilizing tank 13 is connected with an air compressor; the solvent metering tank 7, the first defoaming kettle 10, the second defoaming kettle 11 and the third defoaming kettle 12 are all connected with a vacuum pressure stabilizing tank 14 through vacuum pipes, and the vacuum pressure stabilizing tank 14 is connected with a vacuum pump.
Be equipped with the level gauge on the solvent metering tank 7, all be equipped with vacuum pressure table on solvent metering tank 7, the dissolving kettle 8, resin cauldron 9, first deaeration cauldron 10, second deaeration cauldron 11 and the third deaeration cauldron 12.
The above is only a specific application example of the present invention, and does not constitute any limitation to the protection scope of the present invention. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.
Claims (6)
1. The utility model provides an environmental protection and energy saving type solvent rectification recovery system of recycling which characterized in that: the system comprises a feed pump, a first rectifying system, a second rectifying system, a solvent metering tank, a dissolving kettle, a resin kettle and a plurality of defoaming kettles, wherein the first rectifying system comprises a first rotating bed, a first reboiler, a first condenser, a kettle liquid pump and a first discharge pump, and the second rectifying system comprises a second rotating bed, a second reboiler, a second condenser, a second discharge pump and a product discharge pump; after a raw material inlet enters the first rectifying system and the second rectifying system through a feed pump, a solvent produced by rectification enters the solvent metering tank through the solvent feed pipe, and the solvent metering tank, the dissolving kettle, the resin kettle and the defoaming kettles are sequentially connected.
2. The environment-friendly energy-saving solvent rectification recycling system as claimed in claim 1, characterized in that: the raw material inlet is communicated with a first rotating bed through a feeding pump, the top of the first rotating bed is provided with an outlet communicated with a first condenser, the bottom of the first rotating bed is provided with a discharge hole communicated with a first reboiler, the bottom of the first condenser is divided into two pipelines after passing through a first discharge pump, one pipeline is connected with the first rotating bed, and the other pipeline is connected with wastewater treatment; the upper part of the first reboiler is provided with a solvent pipeline communicated with the first rotating bed, the bottom of the first reboiler is provided with a solvent pipeline which is divided into two pipelines after passing through a kettle liquid pump, one pipeline is connected with the second rotating bed, and the other pipeline is connected with the first reboiler;
an outlet arranged at the top of the second rotating bed is communicated with a second condenser through a solvent pipeline, a discharge hole arranged at the bottom of the second rotating bed is communicated with a second reboiler, a solvent pipeline arranged at the upper part of the second reboiler is communicated with the second rotating bed, the solvent pipeline arranged at the bottom of the second rotating bed is divided into two pipelines after passing through a second discharge pump, one pipeline is connected with the second reboiler, and the other pipeline is connected with a waste residue area; the bottom of the second condenser is divided into two pipelines after passing through the product discharge pump, one pipeline is connected with the second rotating bed, and the other pipeline is connected with the solvent feeding pipe.
3. The environment-friendly energy-saving solvent rectification recycling system as claimed in claim 2, characterized in that: the first condenser is communicated with a vacuum buffer tank, and the vacuum buffer tank is connected with a vacuum circulating water tank through a vacuum pump; and a pipeline is arranged on one side of the second condenser and is connected with the vacuum buffer tank.
4. The environment-friendly energy-saving solvent rectification recycling system as claimed in claim 1, characterized in that: leading-in solvent metering tank of solvent inlet pipe, the bottom of solvent metering tank is equipped with the exit and dissolves the access connection of cauldron, the exit of dissolving the cauldron is through the access connection of first filter and resin kettle, be connected with first deaeration cauldron, second deaeration cauldron and third deaeration cauldron respectively behind the exit linkage second filter of resin kettle.
5. The environment-friendly energy-saving solvent rectification recycling system as claimed in claim 4, wherein: the dissolving kettle, the resin kettle, the second filter, the first defoaming kettle, the second defoaming kettle and the third defoaming kettle are all connected with an air pressure stabilizing tank; and the solvent metering tank, the first defoaming kettle, the second defoaming kettle and the third defoaming kettle are all connected with a vacuum pressure stabilizing tank through vacuum tubes.
6. The environment-friendly energy-saving solvent rectification recycling system as claimed in claim 4, wherein: the bottom exit linkage casting machine of first deaeration cauldron, second deaeration cauldron and third deaeration cauldron, the bottom of dissolving kettle, resin cauldron, first deaeration cauldron, second deaeration cauldron and third deaeration cauldron is equipped with the cooling water import, and the lateral wall all is equipped with the cooling water export for leading-in cooling water cooling back return water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022039094.7U CN213609851U (en) | 2020-09-17 | 2020-09-17 | Environment-friendly energy-saving solvent rectification recycling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022039094.7U CN213609851U (en) | 2020-09-17 | 2020-09-17 | Environment-friendly energy-saving solvent rectification recycling system |
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| Publication Number | Publication Date |
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| CN213609851U true CN213609851U (en) | 2021-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022039094.7U Active CN213609851U (en) | 2020-09-17 | 2020-09-17 | Environment-friendly energy-saving solvent rectification recycling system |
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| CN (1) | CN213609851U (en) |
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- 2020-09-17 CN CN202022039094.7U patent/CN213609851U/en active Active
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