The,purification,industrial,si business, insurance The purification of industrial silicon smelting furnace flue
Small offices have unique needs, and thatincludes document shredding. Designed with the smaller business inmind, the Dahle 20314 is a cross-cut shredder that offers Level 3security and brings you into compliance with federal regulations. The As we all know to live in this world we have to perform some activity by which we can earn money. There are many activities by which we can earn money and meet the standards to live in this society. And from one of them is franchise. Franc
Once come to flue gastreatment, we think of advanced control technology and investment, and theproblem of how to manage. Based on years production experience shows that thesize of the flue gas volume has great relationship with manufacturers producetechnology and manage. Enterprises with stable production technology, advancedmanagement, their products with high quality, low consumption, good dusteffect, emissions compliance. Poor management technology enterprises, products qualitywas poor, high consumption and serious pollution. In the production process, inaddition to the device structure, control of the production operationtechniques was directly affects the furnace flue gas volume. Now much peoplestudy on recycling one ton of silicon powder and fewer people study on thevalue of becoming one ton silicon powder in the furnace. To solve the economic technicalproblems of metal powder supplier, thorough treating gas, improve the economic and social efficiency,its measures are:First, reducing the flue gas volume, improveproduction operation technology. Improper operation technique is the mainreason to increase the amount of gas. The problem exist in most manufacturers isthe furnace structure parameters do not match, high voltage, high output,overload error caused serious thorn fire power, the ratio is not strict,smelting improper caused serious thorn fire. Silicon smelting is continuouslycarried out under furnace submerged condition. Operation to achieve closed arcoperation, timely feeding and stirring stove, adjust the charge voltageresistance and current ratio. The advantages of closed arc operation are:furnace material layer structure can form a complete system, charge sinking inturns; arc is not exposed, maintain a high furnace temperature; electrode consumptionis balance and stability, to avoid electrode fracture; material surfacetemperature is lower, improving the utilization of furnace equipment; the amountof dust is small, can have a better furnace operating environment. No matterthe size of furnace capacity is big or small, also can do closed arc operation,which is an important measure to reduce flue gas volume, improve siliconrecovery, reduce consumption, solving the vicious cycle of purification betweenoperation and smoke.Secondly, the selection of flue gas purificationdevice. Smelting one tons of industrial silicon produce about 2000-2600M3 flue gas, through furnace mouth flamingwas mixed with a large cold air, silicon powder in the air for a long time, difficult to settle, larger thanresistance, silicon with oil, the viscosity increase with temperatureincreases. Therefore, to purify and collect silicon powder, it is necessary tocarry out secondary combustion flue gas dust removal and a series ofpre-cooling and processing. 6300KVA furnace secondary combustion chamber select25-30M3; pre-filter choose the secondarycyclone; exchanger used circulating water control; blower power choose180-250KVA; dust catcher choose positive pressure big bag dust catcher,equipment based on practical situation, they most use non-standard parts.Again, purification works. Use spark trappingdevice to combustion, collected the unburned carbon particles with a spark down,eliminating the possibility of spark burning bag, separating coarse particles fromthe cyclone dust, reducing the amount of dust; cooling by a heat exchanger,reducing the viscosity of silica dust, and then sent into the baghouse byblower, silica dust filter in the bag, emptying the filtered clean gas.Finally, the investment estimation: the total investmentcosts include steel flue, secondary combustion chamber, heat exchanger, filter bagroom, filter bag, auxiliary equipment and civil works. To 6300KVA industrialsilicon furnace, it generally needs 600 thousand yuan investment, the equipmentsmainly a high temperature blower, a 180-250KVA power motor. Other facilitiesaccording to the actual needs, use brick structure and non-standard steel, theconstruction period is 2 months to 3 months. 8000KVA industrial silicon furnacerequires an investment of 800 thousand yuan.Source:http://www.mhcmp.com Article Tags: Industrial Silicon, Silicon Smelting, Furnace Flue, Silicon Powder, Secondary Combustion
The,purification,industrial,si