publishing And PrintingExhaust Gas Treatment Solutions

(Physical Engineering Case Studies)

Introduction to the Publishing and Printing Industry

Publishing and printing refers to a printing method in which text and images are edited, designed, printed, and distributed publicly. It takes paper as the main printing material, and its printed materials such as newspapers, books, periodicals, magazines, albums, promotional materials and other related colour printing and large quantities of printed matter. Publishing printing can also be said to be conventional printing, is the most contact with the designer of the printing design business categories, this type of printing is now mostly lithographic printing (offset printing) based.

Publishing and printing industry pollution hazards

Publishing and printing hazards are mainly in the printing materials used in the ink and curing agent mixture of volatile organic compounds, while in the printing process of drying positions also exist in the distribution of organic compounds, printing workers as a result of breathing all day long gas containing toxic organic compounds, greatly impairing the health of workers, greatly affecting the kidneys, lung function, skin dryness, and even cause dermatitis, damage to the nervous system and so on.

Publishing and Printing Solution Overview

For the publishing and printing industry VOCs treatment technology, now in line with environmental emission requirements, and play a cost-effective treatment technology, is the use of combustion method of treatment technology is more economical and energy-saving effective. The use of dry filters + reduced wind concentration + catalytic combustion combination of governance, governance can meet the emission requirements after the standard!

 
Publishing and printing management process

This device process is: first through the three-stage dry filter to remove 99% of the particles in the dusty gas, so that the organic matter is completely clean, but also to increase the operating efficiency and service life of the late equipment. Separation of organic gases into the zeolite turn concentration or molecular sieve adsorption concentration of organic waste gas low concentration into high concentration, large air volume conversion of small air volume to reduce the principle of concentration, when the adsorption concentration reaches the required spontaneous combustion requirements, and finally through electric heating to warm up the high temperature of 100-180 degrees Celsius gas, desorption regeneration, desorption of down the use of catalytic furnace of the high concentration of catalytic furnace, with the help of catalysts to make the organic waste gas in the lower starting temperature for flameless combustion, so that the late equipment operating efficiency and service life. With the help of catalyst, the organic waste gas will be flamelessly burned under lower ignition temperature, so that the organic waste gas will be decomposed into non-toxic carbon dioxide and water vapour.

Other treatment process technology

Low concentration and small air volume of publishing and printing waste gas can be used: spray tower, uv photolysis purifier, activated carbon adsorption and other single or multiple combinations of processes for treatment;

High concentration of small air volume of publishing and printing waste gas can be used: pretreatment + zeolite molecular sieve + catalytic combustion, pretreatment + zeolite molecular sieve + RTO regenerative incinerator, a single catalytic combustion device or a single RTO regenerative incinerator and so on;

High concentration and large air volume publishing and printing waste gas can be used: pretreatment + zeolite rotor concentration + catalytic combustion or pretreatment + zeolite rotor concentration + RTO thermal storage incinerator and so on.