Environmental protection treatment system for tail gas generated by wood fiber drying device
A drying device and wood fiber technology, applied in the direction of gas treatment, combined device, air quality improvement, etc., can solve the problems that water mist is difficult to be treated, not enough to meet environmental protection requirements, and achieve the effect of saving investment costs
Active Publication Date: 2016-04-20
大连科林能源工程技术开发有限公司
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Problems solved by technology
Wood fiber drying tail gas should be discharged after environmental protection treatment. It is not enough to treat wood fiber drying tail gas with tail gas treatment devices such as desulphurization, nitrogen removal or particle removal, and water mist and other substances are difficult to be treated.
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[0014] The present invention will be further described below in conjunction with the accompanying drawings; the tail gas environmental protection treatment system of the wood fiber drying device, the system is divided into 4 subsystems, which include spray washing desulfurization and dust removal system, demisting system, organic waste gas adsorption system and sewage recycling treatment system. The spray washing desulfurization and dust removal system includes the spray washing desulfurization and dust removal system including the secondary spray pipe (5), the primary spray pipe (4), and the sewage outlet (11); the demisting system includes the primary demister (6) , second-level demister (7), first-level demister lower cleaning pipe (8), first-level demister upper cleaning pipe (9) and second-level demister lower cleaning pipe (10); organic waste gas adsorption system It is an activated carbon adsorption device (19); the sewage recycling treatment system includes a clear wat...
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The invention relates to an environmental protection treatment system for tail gas generated by a wood fiber drying device. A spray washing desulfurizing dedusting system and a demisting system are arranged in a dedusting demisting tower which is connected to an organic waste gas adsorbing system through a flue, and the spray washing desulfurizing dedusting system communicates with a wastewater recycling treatment system; the organic waste gas adsorbing system is connected with a fan pipeline through the flue, the fan pipeline is connected with a fan, and the fan pipeline is connected with a cyclone deduster through the flue. The spray washing desulfurizing dedusting system can be in a contact reaction with SO2, NOX and dust in flue gas so as to effectively remove the SO2, the NOX and the dust; the demisting system destroys the saturated state of particulate fluidization aerosol so as to achieve the purpose of removing water mist; the organic waste gas adsorbing system adsorbs organic matters in the tail gas; the wastewater recycling treatment system can recover waste liquid after reactions and perform filtration and precipitation on the waste liquid so as to achieve the purpose of recovering and recycling wastewater. The environmental protection treatment system disclosed by the invention effectively treats waste gas generated by drying wood fibers, so that the requirement of environmental protection discharge is met.
Description
technical field [0001] The invention relates to industrial waste gas treatment technology, in particular to an environmental protection treatment system for tail gas of a wood fiber drying device. Background technique [0002] Drying wood fiber usually uses bark, sawdust, washed slag, waste fiber, sawing powder, sanded wood powder and board edges in the production line as fuel to provide drying energy through boiler incineration, so wood fiber drying tail gas is produced by waste The flue gas provided by the incineration system is the waste gas discharged from the wood fiber drying system, so the main component of the flue gas produced by combustion is CO 2 、H 2 O, N 2 , SO 2 , NO X and solid particles. The exhaust gas entering the wood fiber drying system is composed of three streams of flue gas. The first stream is the flue gas diverted from the thermal energy center waste incinerator and cooled by the waste heat boiler. The second is the high-temperature flue gas di...
Claims
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IPC IPC(8): B01D50/00B01D53/78B01D53/60
CPCB01D53/60B01D53/78B01D2253/102B01D2257/404B01D2257/302B01D50/10Y02A50/20
Inventor 余传林唐义磊何成国王祺徐良义钱德玉陶立关小川郑贺李鹏飞曹红阳曹威
Owner 大连科林能源工程技术开发有限公司