In the process of metallurgy, a large amount of exhaust gas will be produced, which contains a high concentration of ash or dust. This kind of ash is very harmful and will pollute the environment. At the same time, the ash also has a value in reclamation and reuse. Therefore, it has a significant economic and social benefit to treat with it.
In this dpaper, according to the idiographic case of the producing and place etc. of smelting, it designs hop-pocket dust catcher and makes waste-excreting up to the relevant national standard criterion. What’s more, it should meet the requests of less investment, low running cost, conveniency for operation and easiness for maintenance as necessary as possible.
At present, there are relatively too many sorts and models of dust catcher at home and abroad, through the analyse of their theories and comparison of capability, according to the practical condition, we select the best scheme in calcium carbide furnace exhaust gas controlling. Having the hop-pocket dust catcher selected and the design calculation worked out, we fixed the model, size and root-number of the bag, and we have also designed the steel structure of the dust catcher’s several parts such as the exterior box, bracket and the ash- funnel etc. moreover, with its weight and area calculated. Then, towards the dust-removing system, we carried out the long-effective antisepticising design. According to the locale, we made a proper overall arrangement of each part, and checked on the economic and running cost at last.
This devise has a series of improvement. Compared with the original one,this hop-pocket dust catcher using a minus- pressure ash- absorbing technology. It will not only save the cost and enhance the dust-removing efficiency, because the design of cooling tower, it will also lower the temperature of the gas containing dust, in order to have the effective longevity of the bag guaranteed. Besides, the room can be used properly; the removing of dust and cleaning of ash are entirely automatically controlled.
In the paper, it has finished contriving the dust-removing system not only on the whole, furthermore, it has intensified the details of the device, so that it is able to carry out processing, installing, adjusting and been put in to effect directly. Moreover, the budget of investment and listed all the materials needed have worked out statistically.