CN215390524U - High-efficient film coating drying system - Google Patents
High-efficient film coating drying system Download PDFInfo
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- CN215390524U CN215390524U CN202022790368.6U CN202022790368U CN215390524U CN 215390524 U CN215390524 U CN 215390524U CN 202022790368 U CN202022790368 U CN 202022790368U CN 215390524 U CN215390524 U CN 215390524U
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Abstract
The utility model discloses a high-efficiency film coating and drying system, which belongs to the technical field of film preparation and comprises a drying mechanism, a drying medium heating mechanism, a tail gas fan and an active carbon adsorption mechanism, wherein a gas inlet and a gas outlet are respectively arranged on two sides of the active carbon adsorption mechanism, a backflow port of the drying mechanism is connected with a drying medium inlet of the drying medium heating mechanism through a drying medium backflow pipeline, a drying medium outlet of the drying medium heating mechanism is connected with a drying medium inlet of the drying mechanism through a drying medium inlet pipeline, a top gas outlet of the drying mechanism is connected with a gas inlet of the tail gas fan through a first tail gas outlet pipeline, and a gas outlet of the tail gas fan is connected with a gas inlet of the active carbon adsorption mechanism through a second tail gas outlet pipeline, the solvent volatilization speed is high, the drying speed is controllable, the film distribution is uniform, the energy consumption is reduced, and the operation process is safe and reliable.
Description
Technical Field
The utility model belongs to the technical field of film preparation, and particularly relates to a high-efficiency film coating and drying system.
Background
Ultrafiltration membranes, nanofiltration membranes, composite membranes and the like are widely applied to the environmental protection and fine chemical engineering fields of sewage treatment, water purification, osmotic filtration and the like. The film preparation involves processes such as coating, drying, and the like, and the existing coating and drying system is often set up and is difficult to continuous production, the production efficiency is low, and the drying process leakproofness is poor, and the production environment smell is heavy, and is great to the human body harm, and the energy consumption is very big, and because the flammable media such as N, N dimethylformamide, dimethylacetamide used, if drying control is improper, very easily form explosion environment, the conflagration takes place, explosion accident, has very big potential safety hazard.
SUMMERY OF THE UTILITY MODEL
In view of the problems in the prior art, the utility model aims to provide an efficient film coating and drying system, which effectively overcomes the defects of low coating efficiency, large potential safety hazard, poor production environment and the like, realizes continuous drying of film coating, greatly improves the coating efficiency, has high solvent volatilization speed, controllable drying speed, uniform film distribution, energy consumption saving and safe and reliable operation process.
The high-efficiency film coating and drying system is characterized by comprising a drying mechanism, a drying medium heating mechanism, a tail gas fan and an active carbon adsorption mechanism, wherein a coating film inlet and a coating film outlet are respectively arranged at two sides of the drying mechanism, a gas outlet is arranged in the middle of the top of the drying mechanism, a group of return ports are respectively arranged at two sides of the gas outlet, a group of drying medium inlet is arranged at the bottom of the drying mechanism, a drying medium outlet is arranged at the top of the drying medium heating mechanism, a drying medium inlet is arranged at the bottom of the drying mechanism, a heating medium inlet is arranged at the top of one side of the drying medium heating mechanism, a heating medium outlet is arranged at the bottom of the drying medium heating mechanism, a gas inlet and a gas outlet are respectively arranged at two sides of the active carbon adsorption mechanism, the return port of the drying mechanism is connected with the drying medium inlet of the drying medium heating mechanism through a drying medium return pipeline, the drying medium outlet of the drying medium heating mechanism is connected with the drying medium inlet of the drying mechanism through a drying medium inlet pipeline, the top gas outlet of the drying mechanism is connected with the gas inlet of the tail gas fan through a first tail gas outlet pipeline, and the gas outlet of the tail gas fan is connected with the gas inlet of the activated carbon adsorption mechanism through a second tail gas outlet pipeline.
The efficient film coating and drying system is characterized in that a heating medium inlet pipeline and a heating medium outlet pipeline are respectively arranged at a heating medium inlet and a heating medium outlet on the side of the drying medium heating mechanism, a drying medium supplementing pipeline is arranged at a drying medium inlet at the bottom of the drying medium heating mechanism, a first regulating valve is arranged on the heating medium inlet pipeline, and a second regulating valve is arranged on the drying medium supplementing pipeline.
The efficient film coating and drying system is characterized in that a tail gas discharge pipeline is arranged at a gas outlet of the activated carbon adsorption mechanism.
The high-efficiency film coating and drying system is characterized in that a pressure gauge and a thermometer are arranged at the top of the drying mechanism, a third regulating valve is arranged on the first tail gas outlet pipeline, and the dryerThe structure is a horizontal square structure, and the volume is 10-40 m3The drying device comprises a drying mechanism, a heating medium inlet pipeline, a reflux port, a first regulating valve and a thermometer, wherein the size of the drying medium inlet is DN 150-600, the size of the reflux port is DN 150-600, and the first regulating valve of the heating medium inlet pipeline is interlocked with the thermometer at the top of the drying mechanism.
A high-efficient film coating drying system, its characterized in that stoving medium heating mechanism is vertical square structure, adopts the mode of interior coil pipe heating, wherein interior coil pipe heat transfer area is 10~50m2The size of the particles is 5 to 20m3And a third regulating valve of the first tail gas outlet pipeline is interlocked with the pressure gauge and the second regulating valve.
The high-efficiency film coating and drying system is characterized in that the first tail gas outlet pipeline is provided with an inflammable medium concentration online monitoring mechanism.
The efficient film coating and drying system is characterized in that the air volume of the tail gas fan is 5000-60000 m3And/h, adopting a power supply load as a second level.
The efficient film coating and drying system is characterized in that the activated carbon adsorption mechanism is of a horizontal square structure, and the volume of the activated carbon adsorption mechanism is 10-30 m3And a thermometer is arranged at the top of the activated carbon adsorption mechanism.
Compared with the prior art, the utility model has the beneficial effects that:
1) by adopting the technical scheme of the utility model, the continuous drying of the film coating can be realized, the coating efficiency is greatly improved, and the defects of low coating efficiency, large potential safety hazard, poor production environment and the like are effectively overcome;
2) the utility model has the characteristics of high solvent volatilization speed, controllable drying speed, uniform film distribution, energy consumption saving, and safe and reliable operation process.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
in the figure: 1-a drying mechanism; 2-drying the medium heating mechanism; 3-tail gas fan; 4-an activated carbon adsorption mechanism; 5-a pressure gauge; 6-thermometer; 7-combustible medium concentration on-line monitoring mechanism; 101-drying medium inlet pipe; 102-a drying medium return duct; 103-a first off-gas outlet conduit; 104-a second off-gas outlet conduit; 105-heating medium inlet conduit; 106-heating medium outlet conduit; 107-drying medium replenishing pipeline; 108-exhaust gas discharge line.
Detailed Description
The utility model will be further described with reference to the drawings and the embodiments, but the scope of protection of the utility model is not limited to the scope.
As shown in fig. 1, a high-efficient film coating drying system, including drying mechanism 1, stoving medium heating mechanism 2, tail gas fan 3 and active carbon adsorption mechanism 4, drying mechanism 1's both sides are equipped with coating film import and coating film export respectively, are equipped with gas outlet in the middle of drying mechanism 1's the top, and gas outlet both sides are equipped with a set of backward flow mouth respectively, and drying mechanism 1's bottom is equipped with a set of stoving medium import, and the number of backward flow mouth and stoving medium import is 4 in this embodiment.
According to the efficient film coating and drying system, the drying mechanism 1 is of a horizontal square structure, adopts carbon steel or stainless steel materials, and has a volume of 10-40 m3The size of the drying medium inlet is DN 150-600, and the size of the return opening is DN 150-600.
According to the efficient film coating and drying system, the top of the drying medium heating mechanism 2 is provided with the drying medium outlet, the bottom of the drying medium heating mechanism 2 is provided with the drying medium inlet, the top of one side of the drying medium heating mechanism 2 is provided with the heating medium inlet, the bottom of the drying medium heating mechanism 2 is provided with the heating medium outlet, the drying medium heating mechanism 2 is of a vertical square structure in the embodiment and adopts the inner coil pipe for heating, wherein the heat exchange area of the inner coil pipe is 10-50 m2The material is carbon steel or stainless steel, and the size is 5-20 m3。
According to the efficient film coating and drying system, a gas inlet and a gas outlet are respectively arranged on two sides of an active carbon adsorption mechanism 4, a return port of a drying mechanism 1 is connected with a drying medium inlet of a drying medium heating mechanism 2 through a drying medium return pipeline 102, a drying medium outlet of the drying medium heating mechanism 2 is connected with a drying medium inlet of the drying mechanism 1 through a drying medium inlet pipeline 101, a top gas outlet of the drying mechanism 1 is connected with a gas inlet of a tail gas fan 3 through a first tail gas outlet pipeline 103, and a gas outlet of the tail gas fan 3 is connected with a gas inlet of the active carbon adsorption mechanism 4 through a second tail gas outlet pipeline 104.
The utility model relates to a high-efficiency film coating and drying system, a heating medium inlet and a heating medium outlet on the side of a drying medium heating mechanism 2 are respectively provided with a heating medium inlet pipeline 105 and a heating medium outlet pipeline 106, a drying medium inlet at the bottom of the drying medium heating mechanism 2 is provided with a drying medium supplement pipeline 107, the heating medium inlet pipeline 105 is provided with a first regulating valve, the drying medium supplement pipeline 107 is provided with a second regulating valve, the top of a drying mechanism 1 is provided with a pressure gauge 5 and a temperature gauge 6, a first tail gas outlet pipeline 103 is provided with a third regulating valve, the third regulating valve of the first tail gas outlet pipeline 103 is interlocked with the pressure gauge 5 and the second regulating valve, the balance between the drying medium supplement amount and the tail gas outlet amount can be realized, the pressure in the drying mechanism 1 is maintained at 0.001-0.005 MPa, a stable drying system is formed, the first regulating valve of the heating medium inlet pipeline 105 is interlocked with the temperature gauge 6 at the top of the drying mechanism 1, the temperature of the drying medium can be controlled to be 40-70 ℃, and the drying temperature can be controlled.
According to the efficient film coating and drying system, the first tail gas outlet pipeline 103 is provided with the combustible medium concentration online monitoring mechanism 7, so that the concentration of combustible and combustible media in tail gas can be monitored in real time, and fire and explosion accidents are prevented.
According to the efficient film coating and drying system, the air volume of the tail gas fan 3 is 5000-60000 m3The adopted power supply load is two stages, the activated carbon adsorption mechanism 4 is of a horizontal square structure, and the volume is 10-30 m3And a thermometer is arranged at the top of the activated carbon adsorption mechanism 4, so that the activated carbon adsorption mechanism has a high-temperature alarm function and monitors the temperature in real time.
The drying medium is air or nitrogen, and the heating medium is hot water or steam.
Specifically, the coating liquid containing the combustible medium is heated by hot air or hot nitrogen in the drying mechanism 1, the combustible medium is changed into combustible gas, the combustible gas passes through a first tail gas outlet pipeline 103 at the top of the drying mechanism 1 to a tail gas fan 3, the tail gas fan 3 conveys the combustible gas to an active carbon adsorption mechanism 4 for treatment, and the treated tail gas is discharged to the high altitude through a tail gas discharge pipeline 108 after reaching the standard.
Wherein the hot air, hot nitrogen gas, etc. are heated with steam, hot water, etc. A part of the hot air, nitrogen gas, etc. is supplied from the outside, and is merged with the circulation gas from the drying means 1 to enter the drying medium heating means 2.
Example 1
The solvent in the coating liquid was N, N dimethylformamide with a concentration of 30%.
The drying mechanism 1 is of a horizontal square structure, is made of stainless steel and has a volume of 30m3Wherein the bottom of stoving mechanism 1 evenly is equipped with 4 stoving medium imports, and stoving medium import size is DN400, and its top is equipped with backward flow mouth and tail gas outlet, and the tail gas outlet sets up in the middle of the top of stoving mechanism 1, and the both sides in the middle of stoving mechanism 1 top are equipped with the backward flow mouth, and wherein the backward flow mouth size is DN 400. In addition, the top of the drying mechanism 1 is also provided with a pressure gauge (PICA-101) and a thermometer (TICA-101) which are controlled by a PLC system.
The drying medium heating mechanism 2 is made of stainless steel and has a volume of 15m3Steam is adopted as a heating medium, the drying medium is air, an inner coil pipe is adopted for heating, wherein the heat exchange area of the inner coil pipe is 20m2The air drying temperature is controlled to 50 c by adjusting the opening of the first adjusting valve (TV-101) of the heating medium inlet duct 105. The air supplement amount and the tail gas output amount are controlled to be consistent by adjusting the opening degree of a second adjusting valve (PV-101) of the drying medium supplement pipeline 107 and the opening degree of a third adjusting valve (PV-102) of the first tail gas outlet pipeline 103, and the air supplement amount and the tail gas output amount are both 15000m3And h, maintaining the pressure in the drying mechanism 1 to be about 0.002Mpa, and arranging an online detection device of N, N-dimethylformamide in the first tail gas outlet pipeline 103 to monitor the concentration of the N, N-dimethylformamide in the tail gas in real time.
The air quantity of the tail gas fan 3 is a variable frequency fan, and is 6000-30000 m3H, activated carbonThe adsorption mechanism 4 is made of carbon steel and has a volume of 15m3And after the tail gas is adsorbed by the activated carbon adsorption mechanism 4, the tail gas can be discharged in the high altitude through an exhaust funnel with the length of 15m after meeting the standard requirement.
By the thin film coating and drying system provided in the present embodiment, a drying speed of the coating film of 10m/s can be achieved.
Claims (8)
1. The utility model provides a high-efficient film coating drying system, its characterized in that includes stoving mechanism (1), stoving medium heating mechanism (2), tail gas fan (3) and active carbon adsorption mechanism (4), the both sides of stoving mechanism (1) are equipped with coating film import and coating film export respectively, be equipped with gas outlet in the middle of the top of stoving mechanism (1), the gas outlet both sides are equipped with a set of backward flow mouth respectively, the bottom of stoving mechanism (1) is equipped with a set of stoving medium import, the top of stoving medium heating mechanism (2) is equipped with stoving medium export and bottom is equipped with the stoving medium import, one side top of stoving medium heating mechanism (2) is equipped with the heating medium import and the bottom is equipped with the heating medium export, the both sides of active carbon adsorption mechanism (4) are equipped with gas inlet and gas outlet respectively, the backward flow mouth of stoving mechanism (1) leads to the stoving medium import of stoving medium heating mechanism (2) leads to The drying medium reflux pipeline (102) is connected, the drying medium outlet of the drying medium heating mechanism (2) is connected with the drying medium inlet of the drying mechanism (1) through a drying medium inlet pipeline (101), the top gas outlet of the drying mechanism (1) is connected with the gas inlet of the tail gas fan (3) through a first tail gas outlet pipeline (103), and the gas outlet of the tail gas fan (3) is connected with the gas inlet of the activated carbon adsorption mechanism (4) through a second tail gas outlet pipeline (104).
2. The high-efficiency thin film coating and drying system of claim 1, wherein a heating medium inlet and a heating medium outlet on the side of the drying medium heating mechanism (2) are respectively provided with a heating medium inlet pipeline (105) and a heating medium outlet pipeline (106), a drying medium supplementing pipeline (107) is arranged at the drying medium inlet on the bottom of the drying medium heating mechanism (2), the heating medium inlet pipeline (105) is provided with a first regulating valve, and the drying medium supplementing pipeline (107) is provided with a second regulating valve.
3. The high-efficiency thin film coating and drying system according to claim 1, wherein the gas outlet of the activated carbon adsorption mechanism (4) is provided with an exhaust gas discharge pipeline (108).
4. The efficient thin film coating and drying system of claim 2, wherein a pressure gauge (5) and a temperature gauge (6) are arranged at the top of the drying mechanism (1), the first tail gas outlet pipeline (103) is provided with a third regulating valve, the drying mechanism (1) is of a horizontal square structure, and the volume of the drying mechanism is 10-40 m3The drying device comprises a drying medium inlet, a reflux port and a heating medium inlet pipeline (105), wherein the size of the drying medium inlet is DN 150-600, the size of the reflux port is DN 150-600, and the first adjusting valve of the heating medium inlet pipeline (105) is interlocked with a thermometer (6) at the top of the drying mechanism (1).
5. The efficient thin film coating and drying system as claimed in claim 2, wherein the drying medium heating mechanism (2) is of a vertical square structure and adopts a heating mode of an inner coil, wherein the heat exchange area of the inner coil is 10-50 m2The size of the particles is 5 to 20m3And a third regulating valve of the first tail gas outlet pipeline (103) is interlocked with the pressure gauge (5) and the second regulating valve.
6. The high-efficiency thin film coating and drying system of claim 1, wherein the first tail gas outlet pipeline (103) is provided with an online flammable medium concentration monitoring mechanism (7).
7. The efficient thin film coating and drying system of claim 1, wherein the air volume of the tail gas fan (3) is 5000-60000 m3And/h, adopting a power supply load as a second level.
8. The efficient thin film coating and drying system as claimed in claim 1, wherein the activated carbon adsorption mechanism (4) is of a horizontal square structure and has a volume of 10-30 m3And a thermometer is arranged at the top of the activated carbon adsorption mechanism (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022790368.6U CN215390524U (en) | 2020-11-27 | 2020-11-27 | High-efficient film coating drying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022790368.6U CN215390524U (en) | 2020-11-27 | 2020-11-27 | High-efficient film coating drying system |
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| Publication Number | Publication Date |
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| CN215390524U true CN215390524U (en) | 2022-01-04 |
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| CN202022790368.6U Active CN215390524U (en) | 2020-11-27 | 2020-11-27 | High-efficient film coating drying system |
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| CN (1) | CN215390524U (en) |
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