Processing method for paint spraying waste gas and control device thereof
A treatment method and control device technology, applied in the direction of gas treatment, separation methods, chemical instruments and methods, etc., can solve the problems of increased operating costs, low water spray adsorption efficiency of water washing towers, water resource pollution, etc., to prevent damage from expanding , significant economic and social benefits, and a high degree of automation
Pending Publication Date: 2017-04-26
JIANGSU COLLEGE OF INFORMATION TECH
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Problems solved by technology
The water spray adsorption efficiency of the water washing tower is low, and it also causes pollution of water resources. In the future, wastewater treatment devices need to be added, and the operating costs will increase.
Method used
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Embodiment
[0028] Main hardware configuration
[0029] 1) PLC selection
[0030] Delta EH2 series PLC has a high performance-price ratio, can work in a harsh environment, has fast operation and processing speed, high reliability, and strong functions. To meet the requirements, it was decided to use DVP80EH00T2+DVP48HPOOR2+ DVP48HPOOR2+DVP04PT-H+ DVP04PT-H of Delta EH2 series PLC, with 88 input points, 40 transistor output points, 48 relay output points, and PT-100 input 8 points, it has 4 high-speed pulse outputs, the highest frequency can reach 200KHz, and supports RS485 communication.
[0031] 2) Frequency converter selection
[0032] Here, although the frequency converter drives all fans, the load current of these fans is relatively large, and even the 90KW fan sometimes exceeds the current of the general load machinery of the same power. After calculation and comparison, it is decided that the 3.7KW fan and the 11KW fan adopt Delta E series inverters with high cost performance, ...
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The invention relates to a processing method for paint spraying waste gas, and a control device thereof. The method comprises two stages: adsorption and desorption. In the adsorption stage, gas inlet valves and gas outlet valves of six adsorption tanks are all opened, the waste gas generated in paint spraying enters the tanks full of active carbon from the gas inlet valve of each adsorption tank under the effect of 90KW adsorption fans, the active carbon is used for adsorbing organic pollutants, and the clean gas filtered by the active carbon is discharged to the atmosphere via the gas outlet valves of the adsorption tanks; in the desorption stage, when adsorption capacity of the active carbon reaches the limit, the active carbon is subjected to desorption and regeneration processing, so that the active carbon can be repeatedly used. The control device provided by the invention is configured with a wireless network communication module, so that the device can be unattended, and the states of the valves in the device, the operating condition and output current of each frequency changer, and the operation condition of an electrical heating device can be displayed on a touch screen, as well as web pages on mobile phones or computers.
Description
technical field [0001] The invention relates to the technical field of waste treatment, in particular to a treatment method and control device for spray paint waste gas. Background technique [0002] The country is paying more and more attention to environmental protection at this stage, and the control of various indicators is becoming more and more strict. Many enterprises have increased and renovated environmental protection facilities in order to pass the environmental assessment. [0003] As we all know, the parts that make up the equipment generally have to be surface treated, a considerable part of which is painted, but this will produce a large amount of harmful benzene-containing spray paint exhaust gas. At this stage, organic waste gas with a low concentration such as spray paint exhaust gas The most common treatment method is activated carbon adsorption plus catalytic combustion. [0004] Existing paint spraying waste gas treatment in the prior art generally uses...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B01D53/04
CPCB01D53/0407B01D53/0454B01D2259/4009B01D2258/0258B01D2253/102
Inventor 张建蓉
Owner JIANGSU COLLEGE OF INFORMATION TECH