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The cyclone dust collector is a dusty gas that enters the ash hopper from the tuyere, and a part of the coarser dust particles and the condensed dust clusters directly fall due to inertia, and play a role of pre-collection. The airflow entering the ash hopper is turned upside down into the tank, and when passing through the filter bag with the metal skeleton inside, the dust is retained on the outer surface of the filter bag.
Cement, battery industry, textile industry, ceramic industry, paint chemical industry, etc., the production process of the product will produce a large amount of dust, to reduce the release and production of dust, in addition to the improvement of the production process, it also needs to be discharged to the air later. Processing in. Many companies without social conscience will discharge the exhaust dust generated in production directly into the air. This kind of non-solid environmental impact is only undesirable for the immediate interests, and will affect the environmental and social development of the next generation, contrary to the concept of sustainable development of mankind. With the development of society, people are paying more and more attention to the impact of the environment. Not only concerned about the health of the living environment, but also more attention to the occupational health of the working environment. The state has also formulated various regulations to require enterprises to do environmental protection work in the production process. In the production environment, the most important environmental protection is divided into the following three aspects: dust control, wastewater treatment, and waste gas treatment. Dust control in ceramics, cement, minerals "target=_blank> mineral industry, etc., has important significance.
The cyclone dust collector is a dusty gas that enters the ash hopper from the tuyere, and a part of the coarser dust particles and the condensed dust clusters directly fall due to inertia, and play a role of pre-collection. The airflow entering the ash hopper is turned upside down into the tank, and when passing through the filter bag with the metal skeleton inside, the dust is retained on the outer surface of the filter bag. The cleaned gas enters the clean room at the upper part of the filter bag and is discharged to the outlet pipe. When the dust collector is working, as the filtration continues, the dust on the outer surface of the filter bag gradually increases, and the resistance of the dust collector gradually increases. When the set value is reached, the cleaning controller sends out a dusting command to remove the dust on the outer surface of the filter bag and fall into the hopper, and then open the exhaust valve to restore the chamber to filtration. After a proper time interval, the dust collector performs the cleaning operation of the next chamber again.
Due to the strong erosion of the high-speed dust-containing gas on the inner wall of the precipitator device, the valve or pipe of the dust collector is worn, especially the wear of the volute and the vertebral body of the cyclone is important to ensure the normal operation of the dust removal system. Link. The way to solve the problem of wear, in addition to the wear-resistant material to make the body of the dust collector, it can also be solved by laying the wear-resistant coating on the wearable headquarters of the dust collector or using the wear-resistant lining. Cyclone dust collector wear-resistant coating Apply anti-wear coating on the inner wall of cyclone dust collector, and the effect is good. These wear-resistant layers made of wear-resistant coatings not only withstand the scouring of high-speed soot for a long time, but also can adapt to the various complex structures and curvature requirements of the inner wall of the precipitator.
Among the various wear-resistant coatings, the wear-resistant coatings made of water-glass-fired clay aggregate and bauxite-fired clay aggregate have the best strength and wear resistance, and the actual use effect is better.
The construction measures of the dust collector steel plate should be laid on the inner wall of the dust collector casing or pipe, and the thickness is generally 15~20mm. Therefore, the wear-resistant paint occupies an effective space inside the dust collector. Therefore, when designing and calculating the internal clearance of the dust collector or using design drawings that have not considered the wear-resistant paint, it is proposed to add wear-resistant paint when the dust collector is produced. The size of this part of the space.
Before the welding of the interior of the dust collector and the construction of the ribs or claws, the surface of the steel plate and the surface of the ribs or tortoise shells must be rusted and polished. The minimum requirement is to manually remove the rust by steel brush and gauze. It is best to use sandblasting to remove rust. After welding, all the weld skins must be cleaned to remove the residue and dust.
The curing and baking of the anti-friction layer should not be watered or cured in a humid environment. It should be cured for 2~3d under the dry condition of temperature above 20 °C [293K], and then baked. Bake, gradually heat up, and store in a dry environment after baking.
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Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
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