Semi-closed circulating drying energy-saving system of coating equipment
By introducing a semi-closed circulating drying system into the coating equipment, and utilizing the circulating pipeline and heat recovery device, the problem of high cost of exhaust gas collection and treatment is solved, and safe and environmentally friendly solvent gas recycling and energy consumption reduction are achieved.
Patent Information
- Application Number
- CN202422613988.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-10-29
AI Technical Summary
Existing coating equipment incurs high costs for exhaust gas collection and treatment during solvent evaporation, and poses health risks to operators, lacking a safe and environmentally friendly solution.
A semi-closed circulating drying system is adopted, which recycles the solvent gas through circulating pipelines and heat recovery devices, and maintains a slight negative pressure state between the feeding and discharging operations to reduce solvent gas leakage. Combined with heat recovery, energy consumption is reduced.
It achieves efficient collection and treatment of exhaust gases, reduces costs, minimizes harm to operators, and improves the safety and environmental friendliness of the equipment.
Smart Images
Figure CN223454535U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of coating equipment semi-closed type circulating drying energy-saving system, belong to coating equipment technical field. BACKGROUND
[0002] Coating technology is widely used in the field such as film preparation, lithium battery pole piece preparation, etc., which is a method of coating glue or paint on paper, cloth, plastic film and other substrates to form composite materials or composite films. In the coating process, the polymer material is added with organic solvent for dilution, and the solid content and viscosity are adjusted to the appropriate value before being coated on the substrate. The coated material is placed in an oven for heating, which causes the solvent to evaporate in the oven heating zone, promoting the solidification of the material and forming a polymer film. Due to the presence of various solvents in the coating production line, the working environment of the coating workshop, including the surrounding area, is affected, and the safety of the operators is endangered. In order to facilitate the safe management of the equipment and the collection of tail gas, there is an urgent need for a semi-closed circulating drying energy-saving system for coating equipment. SUMMARY
[0003] The technical problem to be solved by the utility model is to provide a semi-closed circulating drying energy-saving system for coating equipment, which collects and recycles solvent gas, reduces the harm of solvent gas to operators, and reduces the collection and treatment cost of tail gas.
[0004] The utility model adopts the technical scheme to solve the above problems: a semi-closed circulating drying energy-saving system for coating equipment, comprising a coating equipment, a circulating pipeline connected to the coating equipment; a circulating fan, a secondary condenser and a heating compensator are sequentially arranged on the circulating pipeline; the solvent gas in the inner cavity of the coating equipment is introduced into the circulating pipeline through the circulating fan, and then returned to the inner cavity of the coating equipment through the secondary condenser and the heating compensator; an exhaust pipeline is connected to the circulating pipeline, and an exhaust fan is arranged on the exhaust pipeline.
[0005] The coating equipment includes multiple operating rooms: a feeding operating room, a discharging operating room and multiple closed coating and drying operating rooms; the feeding operating room has a feeding port, and the discharging operating room has a discharging port; the exhaust fan is turned on to create a negative pressure in the inner cavities of the feeding operating room and the discharging operating room, and fresh air enters the feeding operating room and the discharging operating room through the feeding port and the discharging port and then flows into the circulating pipeline.
[0006] The operating rooms are respectively provided with a circulating inlet and a circulating outlet, the circulating inlet is connected to the outlet of the circulating pipeline, and the circulating outlet is connected to the inlet of the circulating pipeline.
[0007] A heat recovery device is further arranged on the circulating pipeline.
[0008] The circulating fan is arranged at the inlet side of the heat energy recovery device or the outlet side of the heat energy recovery device.
[0009] Compared with the prior art, the coating equipment semi-closed circulating drying energy-saving system has the advantages that the semi-closed technology is adopted, on the one hand, tail gas collection is facilitated, and the collection and treatment cost of harmful tail gas is reduced; on the other hand, the influence of solvent on personnel in the working environment is reduced, the overall safety of the equipment is ensured, and the coating equipment semi-closed circulating drying energy-saving system is safer and more environmentally friendly. BRIEF DESCRIPTION OF DRAWINGS
[0010] Figure 1 FIG. 1 is a schematic view of a coating equipment semi-closed circulating drying energy-saving system according to an embodiment of the present application;
[0011] Figure 2 FIG. 9 is a schematic view of a feeding operation room;
[0012] Figure 3 FIG. 10 is a schematic view of a discharging operation room;
[0013] FIG. 1 is a schematic view of a coating equipment semi-closed circulating drying energy-saving system according to an embodiment of the present application; DETAILED DESCRIPTION
[0014] The present application will be further described in detail below with reference to the accompanying drawings.
[0015] As Figure 1 , 2, 3, the coating equipment semi-closed energy-saving system of the present embodiment, including coating equipment 1, coating equipment 1 includes a plurality of operating room, an operating room is a feed operating room 9, an operating room is a discharge operating room 11, the remaining operating room is a closed coating drying operating room, a plurality of operating room is respectively provided with a circulating inlet and a circulating outlet, the circulating inlet is connected with the outlet of the circulating pipeline 2 respectively; the circulating outlet is connected with the inlet of the circulating pipeline 2 respectively. Feed operating room 9 has a feed port 10, and discharge operating room 11 has a discharge port 12, for feeding and discharging. The circulating pipeline 2 is sequentially provided with a circulating fan 7, a hot air recovery device 4, a secondary condenser 8, another hot air recovery device 4 and a heating compensator 3, the solvent gas in the operating chamber is introduced into the circulating pipeline 2 through the circulating fan 7, and then returned to each operating chamber through a hot air recovery device, a secondary condenser, another hot air recovery device and a heating compensator, realizing gas recycling and reducing the collection and processing cost of tail gas. The circulating pipeline 2 is connected with the exhaust pipeline 6, and the exhaust fan 5 is arranged on the exhaust pipeline 6. When the exhaust fan 5 is opened, the inner cavities of the feed operating room 9 and the discharge operating room 11 are under negative pressure, and fresh air flows into the circulating pipeline after entering the feed operating room and the discharge operating room through the feed port and the discharge port, thereby reducing the leakage of harmful solvent gas.
[0016] The circulating fan can also be arranged between the hot air recovery device and the secondary condenser, and the solvent in the solvent gas is collected in the solvent collection tank, and then the gas returns to the operating chamber.
[0017] The coating drying operating chamber is made into a closed structure, and the feed operating chamber and the discharge operating chamber are only open to the space required for coating in and out. On this basis, by connecting an exhaust pipeline on the circulating pipeline and opening the exhaust fan, the feed operating chamber and the discharge operating chamber are always in a slightly negative pressure state, thereby greatly reducing the leakage of harmful solvent gas. The system integrates a heat recovery device, which greatly reduces the energy consumption of the system.
[0018] The present application adopts semi-closed technology, which on the one hand facilitates tail gas collection and reduces the collection and processing cost of harmful tail gas, and on the other hand reduces the influence of solvent on personnel in the working environment, ensures the overall safety of the equipment, and is more safe and environmentally friendly.
[0019] In addition to the above embodiments, the present application also includes other embodiments, and any technical solution formed by equivalent transformation or equivalent replacement shall fall within the protection scope of the claims of the present application.
Claims
1. A kind of coating equipment semi-closed energy-saving system of circulating drying, it is characterized by: The coating device is connected with a circulating pipeline, the circulating pipeline is sequentially provided with a circulating fan, a secondary condenser and a heating compensator, solvent gas in the inner cavity of the coating device is introduced into the circulating pipeline through the circulating fan, and then returned to the inner cavity of the coating device through the secondary condenser and the heating compensator, and the circulating pipeline is connected with a exhaust pipeline, and the exhaust pipeline is provided with an exhaust fan.
2. The semi-closed cycle drying energy-saving system of a coating equipment according to claim 1, characterized in that: The coating device comprises a plurality of operation rooms, including a feeding operation room, a discharging operation room and a plurality of closed coating and drying operation rooms, the feeding operation room is provided with a feeding port, the discharging operation room is provided with a discharging port, the exhaust fan is opened, so that the inner cavities of the feeding operation room and the discharging operation room are in negative pressure, and fresh air enters the feeding operation room and the discharging operation room through the feeding port and the discharging port and then flows into the circulating pipeline.
3. The semi-closed cycle drying energy-saving system of a coating equipment according to claim 2, characterized in that: The operation rooms are respectively provided with a circulating inlet and a circulating outlet, the circulating inlet is connected with the outlet of the circulating pipeline, and the circulating outlet is connected with the inlet of the circulating pipeline.
4. The semi-closed cycle drying energy-saving system of coating equipment according to claim 1, characterized in that: The circulating pipeline is further provided with a heat energy recovery device.
5. The semi-closed cycle drying energy-saving system of a coating equipment according to claim 4, characterized in that: The circulating fan is arranged on the inlet side of the heat energy recovery device or the outlet side of the heat energy recovery device.