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On December 3rd, good news came from Guizhou Microtech Co., Ltd. Developed by the company's own "sublimation sulfur dust recovery device", has been in Sinopec Group Nanjing Chemical Industry Co., Ltd. integrated sulfuric acid plant successfully achieved industrialization application, after six months of repeated technical rectification and sampling analysis, on October 30 this year through the owner's project acceptance, 72 hours test run results show that sulfur dust recovery rate reached more than 90%.According to Jiang Ping, technical director of Guizhou Micro-chemical Company, the successful delivery of the technology device is the first in China, the installation of complete sets of equipment with a high degree of innovation, energy conservation and environmental protection, sulfur dust recovery rate is high, no follow-up treatment and other characteristicsIt is understood that, at present, most of the domestic sulfuric acid enterprises to produce sulfur melting site of fast-melting tanks, storage liquid sulfur storage tanks, liquid sulfur tanks are designed with sulfur steam drainage pipe, storage tank containers containing sublimation sulfur sulfur sulfur vapor with the evaporation of the exhaust pipe attached to the inner wall of the pipe port and the formation of sublimation sulfur (i) Sulphur dust) dust naturally discharged into the air, over time, on the one hand, will block the pipe but also corrode the exhaust port of each container, resulting in short maintenance cycle of field equipment, high maintenance costs, safety hazards, on the other hand, more serious is through the air drain directly outside the sublimation of sulfur dust pollution of the site environment.Jiang Ping told China Chemical News reporter, the traditional technology of treatment is to use alkali water to clean sulfur vapor in the sublimation sulfur dust, in the process of water cleaning also need to put alkali or lime powder, after cleaning sublimation sulfur dust also need to be semen, waste water needs to be treated, but also need to clean up the system from time to time, small cleaning is generally half a shift, there are regular system cleaning, washing system cleaning needs 1 shift. In addition, the monthly consumption of 5 tons of soda, but also to carry out natural drying of sediment and then return to sulfur, due to the increase in moisture at the same time increased the consumption of steam when melting sulfur, and the amount of flue gas emissions can not achieve the purpose of de-whitening, and exacerbated the corrosion of melting sulfur equipment, increased the cost of later equipment operation and maintenance.Jiangping said that sublimation sulfur dust recovery devices bid farewell to the traditional technology of alkali water cleaning sublimation sulfur, changing the understanding of traditional concepts, its greatest advantage is. Compact, compact, easy to install and power-free. Low operating and maintenance costs, not only solve environmental problems, while recycling dust for enterprises to increase economic benefits, annual savings for enterprises more than 10 million yuan in alkali consumption, saving electricity costs of about 700,000 yuan. And no follow-up treatment, greatly reduced equipment input costs and labor costs, at the same time, but also reduce the safety of enterprises, environmental pressure, improve the production and working environment, the occupational health of employees has been significantly improved.Jiangping said that sublimation sulfur dust recovery plant in terms of economic value, a set of 40-50 million tons / year sulfuric acid device to be equipped with at least two tanks, two to three 3000-5000 tons of storage tanks. In the case of a groove drain, for example, the sublimation of sulfur dust discharged with sulfur vapor is about 0.5Kg/h, which is the data obtained from sampling analysis, some close to or greater than 1Kg/h. The cumulative annual unorthumed emission of sublimation sulfur dust is calculated at 0.5Kg/h at 4380 Kg, which means that the sublimation sulfur dust recovery device can reduce sublimation sulfur dust by 4380 Kg per year. It not only saves companies money but also reduces the amount of non-meltable particulate matter in the atmosphere by 4380 Kg.Jiang Ping said that sublimation sulfur dust recovery device not only solves environmental problems, reduces the emission of monosulfur to the air, in line with the national requirements for environmental protection, at the same time from the long-term operation, no power, high safety factor, but also for enterprises to save energy, recovery of monosulfur, increased economic benefits, can be said to be a lot.incomplete statistics, China's sulfuric acid production capacity of 60 million tons / year, production of nearly 50 million tons. There are complete sets of sulfuric acid device 400-500 sets, sublimation sulfur dust recovery technology device development success, sulfuric acid energy conservation and environmental protection is of great significance, but also has great market potential.Jiang Ping told The China Chemical News that according to each sulfur vapor discharge by about 1 kg per hour sublimation sulfur dust emissions, each drain each year to reduce the emissions of monosulfur to the atmosphere 7.9 tons, each enterprise according to an average of 6 discharge calculations, each enterprise can reduce emissions throughout the year 47.4 tons, if the country according to 400 enterprises to calculate, the whole year can reduce the emissions of monosulfur to the atmosphere about 19,000 tons, according to 500 enterprises, the whole year can reduce the emissions of monosulfur to the atmosphere about 237,000 tons.above, the sublimation sulfur dust recovery device in Nanjing Chemical Co., Ltd. integrated sulfuric acid installation and operation