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A low-temperature and high-efficiency drying system for water-based paint

A drying system and water-based coating technology, which is applied in the direction of surface coating liquid devices, coatings, general parts of printing machinery, etc., can solve problems affecting production costs, VOCs emissions not up to standard, and high energy consumption in system operation

Active Publication Date: 2021-06-08
SHAANXI BEIREN PRINTING MACHINERY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The water-based paint used is a mixture of water and ethanol, 70% to 100% of water mixed with 30% to 0% of ethanol, because the enthalpy of water is much higher than other volatile organic compounds as solvents, its general drying process The required heat and air volume are large, and the VOCs emissions caused by alcohol emissions exceed the national standard, which leads to the following problems: 1. The energy consumption of the system is high, which seriously affects the production cost; 2. Due to the demand for large air volume , requires a long drying channel; 3. Affects the production speed and reduces the efficiency of production equipment; 4. VOCs emissions are not up to standard

Method used

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  • A low-temperature and high-efficiency drying system for water-based paint

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Embodiment Construction

[0018] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] A low-temperature and high-efficiency drying system for water-based coatings according to the invention, the structure of which is as follows: figure 1 As shown, it includes drying box 1, evaporator 2, exhaust fan 3, condenser A4, and air intake fan 5 connected in sequence. The air intake fan 5 is also connected to drying box 1, between condenser A4 and evaporator 2 A compressor 10 is provided.

[0020] A gas-water separator 6 is also provided between the evaporator 2 and the exhaust fan 3 .

[0021] Both the evaporator 2 and the gas-water separator 6 are connected to the liquid collection tank 7 .

[0022] There is a three-way air mixing valve 8 between the exhaust fan 3 and the condenser A4, the first interface of the air mixing valve 8 is connected to the air outlet of the exhaust fan 3, the second interface of the air mixing valv...

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Abstract

The invention discloses a low-temperature and high-efficiency drying system for water-based paint, which comprises a drying box, an evaporator, an exhaust fan, a condenser A, and an air inlet fan connected in sequence, and the air inlet fan is also connected to the drying box, and the condenser There is a compressor between A and the evaporator. The system enables efficient, energy-saving coating and drying of substrates.

Description

technical field [0001] The invention belongs to the technical field of gravure printing machine drying, and relates to a low-temperature and high-efficiency drying system for water-based paint. Background technique [0002] At present, in the production process of unit-type gravure printing machines, dry lamination machines, coating machines, flexographic printing machines and other equipment, the surface of the product needs to be dried with high-temperature hot air in a drying box to volatilize the solvent components coated on the surface. Most of the drying heat sources are electricity, steam, heat transfer oil, and natural gas. Due to the requirements of environmental protection and green production, enterprises have gradually begun to use water-based coatings as inks and glues for production. [0003] Printing machines, compound machines, coating machines, and drying systems are the most energy-consuming parts in the operation of the whole machine. The water-based pai...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05D3/04B41F23/04B41F33/00
CPCB05D3/0413B41F23/0426B41F23/0466B41F33/0018
Inventor 李冬李彦锋薛志成杨海峰杜金龙刘永凯
Owner SHAANXI BEIREN PRINTING MACHINERY