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Process of printing plant VOC exhaust gas treatment equipment-Novo Environmental Protection Equipment

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Process of printing plant VOC exhaust gas treatment equipment

Source: Novo environmental protection equipmentRelease time: 2018-10-25 8:04:39
印刷厂VOC废气治理设备工艺流程
In all aspects of the printing process, improper process treatment will cause environmental pollution problems, which will adversely affect the human body and the environment. This is mainly manifested in organic compounds emitted by solvent inks during drying, and isopropyl alcohol in alcohol wet liquid , The hot-melt adhesive used in wireless binding, the volatile gas of glazing paint, etc. all cause pollution to the air and are harmful to human health.
Phone: 0317-8315225 Fax: 0317-8315251

In all aspects of the printing process, improper process treatment will cause environmental pollution problems, which will adversely affect the human body and the environment. This is mainly manifested in organic compounds emitted by solvent inks during drying, and isopropyl alcohol in alcohol wet liquid , The hot-melt adhesive used in wireless binding, the volatile gas of glazing paint, etc. all cause pollution to the air and are harmful to human health.

The main pollutants of the printing plant involve organic waste gas such as ethyl acetate and formaldehyde. Ethyl acetate is a colorless and transparent liquid. It has a pungent odor at a high concentration, is volatile, and is sensitive to air. It can absorb moisture, which can cause it to slowly decompose and present an acid reaction. It is miscible with chloroform, ethanol, acetone and ether, and soluble in water (10% ml / ml). Can dissolve certain metal salts (such as lithium chloride, cobalt chloride, zinc chloride, ferric chloride, etc.). The relative density is 0.902. Melting point -83 ° C. The boiling point is 77 ° C. The refractive index is 1.3719. Flash point 7.2 ° C (open cup). combustible. Vapors can form explosive mixtures with air. The median lethal dose (rat, oral) was 11.3 ml / kg. Irritating.

Health hazards: irritating to eyes, nose and throat. High concentration inhalation can induce progressive anesthesia, acute pulmonary edema, liver and kidney damage. Sustained inhalation may cause respiratory paralysis. Mistakes can cause nausea, vomiting, abdominal pain, and diarrhea. It has sensitization, bleeding gums due to vascular and nerve disorders; can cause eczema-like dermatitis. Chronic effects: Long-term exposure to this product can sometimes cause corneal opacity, secondary anemia, and leukocytosis.

Since the exhaust gas treatment of the printing plant has seriously affected the surrounding environment and the physical and mental health of the workers, the VOC exhaust gas treatment of the printing plant is an ordered product that must be installed. Currently there are many styles of VOC exhaust gas treatment equipment on the market. Which one is safe, reliable, Ideal for low running costs. Botou Nuo and Xiao Zhao recommended photo-oxygen catalysis equipment.

Photo-oxygen catalysis equipment uses a special ultraviolet band (C-band), a special treatment method that breaks down exhaust gas molecules and further redox under the action of a special catalytic oxidant. Exhaust gas molecules first pass through special bands of high-energy ultraviolet light to break up organic molecules and break their molecular chains. At the same time, by decomposing oxygen and water in the air, high-concentration ozone is obtained, and ozone further absorbs energy to form free hydroxyl groups with higher oxidation performance. Exhaust molecules. At the same time, a variety of composite inert catalysts are configured according to different exhaust gas components, which greatly improves the speed and efficiency of exhaust gas treatment, thereby achieving the purpose of purifying exhaust gas.

The reason why photo-oxygen catalysis equipment became the choice

1. No need to add any substance: Only the corresponding exhaust duct and exhaust power need to be set, so that the malodorous gas can be deodorized and purified through this equipment, without adding any substance to participate in the chemical reaction.

2, strong adaptability: can adapt to high concentration, atmospheric volume, deodorizing and purifying treatment of different malodorous gas substances, can work continuously 24 hours a day, stable and reliable operation.

3. Low operating cost: This equipment has no mechanical action, no noise, no need for special personnel to perform peacetime maintenance, just need to check regularly, this equipment has low energy consumption, (every 1000 cubic meters per hour, only about 0.2 degrees of power consumption Electric energy), the device has extremely low wind resistance <50pa, which can save a lot of exhaust power consumption. Printing plant exhaust gas treatment equipment Printing plant exhaust gas treatment scheme

4. No pre-treatment is required: special pre-treatment is not required for malodorous gas, such as heating, humidification, etc., the equipment operating environment temperature is between -30 ° C-95 ° C, humidity is 30% -98%, and PH value is 2- Can work normally between 13.

5. The equipment covers a small area and light weight: suitable for special conditions such as compact layout and small space. The equipment covers an area of less than 1 square meter / 10,000 m3 / h air volume.

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