Air circulation system of multi-color printing machine
A technology of air circulation system and printing machine, applied in printing machine, general parts of printing machinery, printing and other directions, can solve the problem of inability to meet the requirements of multi-color printing of decorative gravure materials, avoid drying surface curing, reduce solvent residues , the effect of easy control
Pending Publication Date: 2017-06-30
广州黑马科技有限公司
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Problems solved by technology
The air circulation system of the existing packaging material printing machine cannot meet the requirements of multi-color printing of decorative gravure materials
Method used
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[0027] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.
[0028] It should be noted that the "first", "second", ..., "fifth" appearing in the present invention are only used to distinguish different structures and components, without prioritization, and not as limitations on the structures or components themselves At the same time, "and / or" in the present invention means that it can be possessed at the same time, or one of them can be selected, such as scheme A and / or scheme B, including scheme A, scheme B, scheme A and scheme B. Condition.
[0029] Such as figure 1 As shown, the air circulation system of a multi-c...
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The invention discloses an air circulation system of a multi-color printing machine. The air circulation system comprises n printing color groups, wherein n is larger than equal to 2. Each printing color group is provided with an air inlet and an exhaust port, the exhaust ports of all the printing color groups communicate with a main exhaust pipe, and the air inlets of all the printing color groups communicate with a main air return pipe. The air circulation system further comprises a main circulation fan and a first valve, a first outlet of the main exhaust pipe communicates with the main air return pipe through the first valve, a second outlet of the main exhaust pipe communicates with an inlet of the main circulation fan, an outlet of the main circulation fan is led to a waste gas treatment device, and VOCs concentration of the inlet or outlet of the main circulation fan is used for adjusting the air drawing volume of the main circulation fan. According to the air circulation system of the multi-color printing machine, multi-color printing waste gas with the small exhaust volume and the high VOCs content can be obtained, meanwhile, waste gas of all the full-page printing color groups can be directly exhausted, waste gas of the non-full-page printing color groups enters the main air return pipe for circulation, therefore, the efficiency of waste gas treatment is improved, and the waste gas treatment cost in multi-color printing is reduced.
Description
technical field [0001] The invention relates to energy saving and emission reduction of multi-color printing, in particular to an air circulation system of a multi-color printing machine, in particular to an air circulation system of a multi-color printing machine for decorative materials. Background technique [0002] Multi-color printing is widely used in industrial production. For example, PVC floors, building walls and furniture surface decoration materials all use multi-color printing. Multi-color printing is to apply ink on the printed body and then dry it. So far, solvent-based Ink, that is, ink containing VOCs (volatile organic compounds, that is, volatile organic compounds), ink containing VOCs will produce a large amount of gas containing VOCs during the drying process. Since VOCs are emitted into the atmosphere, they will chemically react with nitrogen oxides (NOx) in the air under sunlight to produce PM2.5 and harmful ozone, which is the smog that is of particula...
Claims
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IPC IPC(8): B41F33/00
CPCB41F33/00
Inventor 马军宋兴刚陈金发
Owner 广州黑马科技有限公司