Application Research on New Hydro-Style Turbulent Contact Scrubber

2017 ◽  
Vol 873 ◽  
pp. 298-302
Author(s):  
Yong Li ◽  
Yan Ping Li ◽  
Ping Kong ◽  
Shu Yin Wei ◽  
Qian Zhang ◽  
...  
Keyword(s):  
Power Plant ◽  
Thermal Power Plant ◽  
Coal Dust ◽  
Thermal Power ◽  
Application Research ◽  
Dust Collection ◽  
Clean Air ◽  
Fully Automatic ◽  
Bottom To Top ◽  
Conveying System

The new duster is used to remove the coal dust from the coal conveying system of thermal power plant. Many of plastic globules are filled into the duster. The water is sprayed from the upper of duster. The airflow of containing coal dust flows through the filler from bottom to top, and change to clean air. The application of the turbulent duster in the coal conveying system of the thermal power plant shows: the efficiency of dust collection is 99%. In particular, it can remove 67% of coal dust smaller than 5 microns. The duster adopts fully automatic control technology. The amount of water consumed is very low. It can be effectively used for coal conveying system of thermal power plant. After air purification with coal dust, the air quality meets the requirements of the health standard.

Features of antibodies against benzo[a]pyrene formation in workers of coal mines and thermal power plants

2019 ◽  
pp. 9-14
Author(s):  
Ye. G. Polenok ◽  
S. A. Mun ◽  
L. A. Gordeeva ◽  
A. A. Glushkov ◽  
M. V. Kostyanko ◽  
...  
Keyword(s):  
Power Plant ◽  
Thermal Power Plant ◽  
Power Plants ◽  
Reference Group ◽  
Coal Dust ◽  
Thermal Power ◽  
Coal Mines ◽  
Serum Levels ◽  
Thermal Power Plants ◽  
Immune Reactions

Introduction.Coal dust and coal fi ring products contain large amounts of carcinogenic chemicals (specifically benz[a]pyrene) that are different in influence on workers of coal mines and thermal power plants. Specific immune reactions to benz[a]pyrene therefore in these categories of workers can have specific features.Objective.To reveal features of antibodies specifi c to benz[a]pyrene formation in workers of coal mines and thermal power plants.Materials and methods.The study covered A and G class antibodies against benz[a]pyrene (IgA-Bp and IgG-Bp) in serum of 705 males: 213 donors of Kemerovo blood transfusion center (group 1, reference); 293 miners(group 2) and 199 thermal power plant workers (group 3). Benz[a]pyrene conjugate with bovine serum albumin as an adsorbed antigen was subjected to immune-enzyme assay.Results.IgA-Bp levels in the miners (Me = 2.7) did not differ from those in the reference group (Me = 2.9), but in the thermal power plant workers (Me = 3.7) were reliably higher than those in healthy men and in the miners (p<0.0001). Levels of IgG-Bp in the miners (Me = 5.0) appeared to be lower than those in the reference group (Me = 6.4; (p = 0.05). IgG-Bb level in the thermal power plantworkers (Me = 7.4) exceeded the parameters in the healthy donors and the miners (p<0.0001). Non-industrial factors (age and smoking) appeared tohave no influence on specific immune reactions against benz[a]pyrene in the miners and the thermal power plant workers.Conclusions.Specific immune reactions against benz[a]pyrene in the miners and the thermal power plant workers are characterized by peculiarities: the miners demonstrate lower levels of class A serum antibodies to benz[a]pyrene; the thermal power plant workers present increased serum levels of class G antibodies to benz[a]pyrene. These peculiarities result from only the occupational features, but do not depend on such factors as age, smoking and length of service at hazardous production. It is expedient to study specific immune reactions to benz[a]pyrene in workers of coal mines and thermal power plants, to evaluate individual oncologic risk and if malignancies occur.

scholarly journals Research on Active Dustproof of Coal Handling System

2021 ◽  
Author(s):  
Man Yi Zhou
Keyword(s):  
Power Plant ◽  
Thermal Power Plant ◽  
Coal Dust ◽  
Thermal Power ◽  
Site Investigation ◽  
Point Of View ◽  
Dust Control ◽  
Gradual Improvement ◽  
Handling System ◽  
National Environmental

Abstract Coal handling system of Power plant(CHP) is easy to produce dust, which is the most serious place of coal dust pollution in thermal power plant. With the gradual improvement of national environmental protection requirements, the control of coal dust becomes more and more important. The author believes that we should not wait for the pollution caused by coal dust to be treated, but should take the initiative to attack, and should take the initiative to prevent dust, starting from the source of coal transportation. In the process of designing coal conveying of thermal power plant for many years, the author has carried out on-site investigation on many coal handling systems, summarized experience and obtained relevant data. Through further analysis, the main causes of coal dust are mastered, and the relevant measures of active dust control are put forward from the technical point of view, in order to provide help for the comprehensive control of coal dust in power industry.

scholarly journals Intelligent methods for process control and diagnostics of a mill fan system

2014 ◽  
Vol 14 (1) ◽  
pp. 151-160 ◽  
Author(s):  
Lyubka A. Doukovska ◽  
Svetla I. Vassileva
Keyword(s):  
Power Plant ◽  
Process Control ◽  
Thermal Power Plant ◽  
Coal Dust ◽  
Thermal Power ◽  
Balkan Peninsula ◽  
Basic Element ◽  
Furnace Chamber ◽  
Bayesian Approaches ◽  
Intelligent Methods

Abstract The intelligent methods for process control and diagnostics of the mill fan system is an established field of scientific and applied investigations. In the present paper several types of process control approaches with different structures are considered. In order to choose the most efficient one, comparative analysis is carried out. The mill fans are a basic element of the dust-preparing systems of steam generators with direct breathing of the coal dust in the furnace chamber. Such generators in Bulgaria are the ones in Maritsa East 2 Thermal Power Plant, in Maritsa East 3 Thermal Power Plant and also in Bobov Dol Thermal Power Plant. The subject of this research is a device from Maritsa East 2 Thermal Power Plant. This is the largest thermal power plant on the Balkan Peninsula. Standard statistical and probabilistic (Bayesian) approaches for diagnostics are inapplicable to estimate the mill fan technical state due to non-stationarity, non-ergodicity and the significant noise level. The possibility to predict eventual damages or wearing out without switching off the device is significant for providing faultless and reliable work, avoiding the losses caused by planned maintenance.

Nonlinear Trend Analysis of Mill Fan System Vibrations for Predictive Maintenance and Diagnostics

2012 ◽  
Vol 58 (4) ◽  
pp. 351-356
Author(s):  
Mincho B. Hadjiski ◽  
Lyubka A. Doukovska ◽  
Stefan L. Kojnov
Keyword(s):  
Power Plant ◽  
Trend Analysis ◽  
Thermal Power Plant ◽  
Power Plants ◽  
Thermal Power ◽  
Balkan Peninsula ◽  
Predictive Maintenance ◽  
Nonlinear Trend ◽  
The Subject ◽  
The Given

Abstract Present paper considers nonlinear trend analysis for diagnostics and predictive maintenance. The subject is a device from Maritsa East 2 thermal power plant a mill fan. The choice of the given power plant is not occasional. This is the largest thermal power plant on the Balkan Peninsula. Mill fans are main part of the fuel preparation in the coal fired power plants. The possibility to predict eventual damages or wear out without switching off the device is significant for providing faultless and reliable work avoiding the losses caused by planned maintenance. This paper addresses the needs of the Maritsa East 2 Complex aiming to improve the ecological parameters of the electro energy production process.

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