www.melanexjou.fora.pl

[px231858]

Dust control measures and effect of a power plant evaluation


The FS. 2 samples were collected dust sampler, 1997 March 17 to 19 for 3 days, every day, the afternoon 1, determined by gravimetric method delete dust, with the f-test statistics. Samples before and after treatment, instruments, methods are the same. Second, control measures 1. Process modification measures fluttering of flag} (1) 1 guided trough belt conveyor 7, down for upgrading coal hopper, 4 off the high deviation from the round to square coal bucket,[link widoczny dla zalogowanych], increasing the scope of the head of the inclusive and effective coal and coal blocking leakage control. (2) of the belt cleaning device 30 to transform from one to two clean sweep, and using the new co-ounce cleaning, to prevent caking coal belt. Step by secondary dust flying. (3) increase the buffer in the lower guide roller trough. Reduce dust emission from the lateral trough guide and the buffering capacity of materials. (4) 2, increasing belt loaded coal hopper head oliveri,[link widoczny dla zalogowanych], filter stone, wood and other debris. To attempts to prevent the coal, while the installation of stone, wood lifting device to reduce the labor intensity of workers. (5) to address the position No. 7 belt conveyor dust pollution. 4 boilers on the grass to transform screen splitter shift, also auger powder to transform the input, eliminating the dust source. (6) one-way on the single belt transport section. Set the baffle in its head, to adjust the material on the neutral, reducing belt deviation. (7) to address air pollution caused by coal-dust. Installed a dust collection device. 2 Civil Engineering measures: (1) to have a coal arm, under the raw coal silo, belt 7, the worst environment to do the waterproof ground. (2) of the conveyor 1 to 7,[link widoczny dla zalogowanych], 15m high positions tiles affixed to the wall, made of sloping ground level ground. Conducive to water. To prevent dust deposition. 3. Rotating dust measures: (1) guide trough belt to arch, which will help dust deposition, and creation of multi-stage dust curtain. (2) modify and improve the water flushing system belt positions, the establishment of 8 ten slime pool, used for washing coal, recycle, reduce Author: 414,014 Yueyang Petrochemical Plant Industry Institute of disease control dust source. 7, with or without use of the ESP system,[link widoczny dla zalogowanych], which uses water wash system, saving investment. (3) removal of the original bag filter, in the 2, 3, original design two rooms coal crusher dust removal unit impulse to impulse-type dust collecting unit 1 set. Run-time switch with baffle tee. 4 management measures: careful operation and maintenance of mainframe and ancillary control equipment,[link widoczny dla zalogowanych], while driving, while maintenance work before the class in the walls and floors with water. No dust deposition. Third, the results of treatment before. 4 belt dust concentrations of 12 samples exceeded national health standards (exceeding 003 ~ 4.98 times). After treatment. Concentrations were significantly decreased, in addition to 5, the first belt is still exceeding 007 times the concentration of dust outside. Others are in the national health standard (10mg/m3) or less. 7, the first belt before treatment concentration was the highest (598432.15) mg/m3, the rule of reason decreased to (650 = 593) mg / m. 12 sampling points. In addition to the belt 5 after the first treatment the concentration of coal sitting outside there was significant difference (P <005), other differences were significant (P <001). Fourth, evaluation and recommendation 1. Evaluation: Governance of the coal handling system before the air dust concentration in the post each year more than the national health standard samples. Means are exceeded. After treatment, 63 samples, only 10 samples exceeded the mean only 601mg/m3. Basically meet the national hygiene standards. 7 belt in the worst conditions, the highest concentration of the former management 1013.00mg / m, the highest value after the treatment is only 13.70rng / m, governance teach fruit is very significant. 2 suggestions: (1) to strengthen maintenance. Dust and dust do a good job of maintaining equipment and facilities and maintenance. Coal handling system to ensure that these devices while driving the normal operation of the facilities, the host device with dust dust while supporting maintenance. While driving. (2) application. The key control project designed, and effective measures, stage management and practical. In funding for 4 years a total investment of 4.05 million yuan, with a water wash in place of 7, the electric dust removal system, saving 32 million of funds; in 2 transfer stations and the coal crusher room, dust machine consists of two to one . L2 million in savings. Many of our coal-fired power plants are coal dust hazard exists, the project successfully completed, and dust control for the power plant provided a successful example of the governance programs and initiatives can spike fired power plants are coal dust hazard application. {Participate in the governance and control in the evaluation project have cabinet Zhiyong, Li Meng, Huang Huimin Xie kindness, ZHOU Xiang wind, Liu Lingyun, Maochun Ling Liao force, Yang Xiaoping and other comrades Acknowledgements l {Received} 1998-03-16 Revised :1998 -05-26】 (The Editor: Heya Hui) Li azole drug treatment
More articles related to topics：


[link widoczny dla zalogowanych]

timberland scarpe Spleen phagocytic cell function

[link widoczny dla zalogowanych]