Due to the scarcity of coal resources and the long period of regeneration, it can be understood as a one-time resource, which plays a decisive role in the national economy. Therefore, it is extremely necessary to increase its utilization rate. Therefore, all countries in the world are committed to the study of how to improve the utilization of coal, in which the invention of the dryer is a common method. Dryer is often simple and reliable structure, the more costly equipment has a strong vitality, such as the professional American ADC dryer is to seek a simple structure. The rotary design of the dryer is one of the important links that embodies this “simple and reliable†design concept. The dryers at home and abroad are different in the design of the rotating structure, and many types of dryers have been separated through continuous evolution. Each has its own advantages and disadvantages. Dryer machine is mainly composed of rotary body, lifting plate, transmission device, support device and sealing ring, etc. It has the advantages of reasonable structure, excellent production, high output, low energy consumption and convenient operation. The domestic dryer technology has been maintaining a steady state, there is no obvious development and changes. However, due to the large energy consumption of dryers, with the increasing shortage of energy in recent years, new technologies for improving the performance of dryers have been vigorously developed in Europe, America, Japan, and other advanced countries. New types of energy-saving and efficient dryers, such as Axial air circulation type, automatic adjustment of speed type, smart dryer control type, etc. have been rapidly promoted and popularized, which is the inevitable trend of such equipment in the future development.
1. Water supply equipment
It is composed of water treatment equipment, water supply tank and feed pump 24. Water treatment equipment is used to remove impurities in water, such as oxygen, calcium and magnesium ions, to avoid scaling and corrosion on the inner wall of steam boiler, and to ensure the quality of boiler water supply. The treated boiler feed water is lifted by the feed water pump and then sent to the upper drum through the economizer.
2. Ventilation
The ventilation equipment includes air supply fan, induced draft fan and chimney. Its function is to provide air for mule fuel combustion and lead out combustion product flue gas from the boiler, so as to ensure the normal combustion, and make the flue gas wash the heating surface at the necessary flow rate of 7a68696466fe78988e69d8331333433626465 to strengthen heat transfer. Finally, the stack with a certain height will exhaust the smoke to the atmosphere to reduce the smoke pollution and improve environmental health.
3. Fuel supply, slag removal and dust removal equipment
This is for conveying fuel to boiler, removing ash and purifying flue gas. Belt conveyor, ash conveyor, ash truck and dust remover, etc. For boilers that need to be pre processed with fuel, fuel preparation such as screening, crushing and coal grinding shall also be included. In addition, the dust remover or flue gas desulfurization and denitrification device installed in the flue at the tail of the boiler is an indispensable auxiliary equipment to reduce the smoke pollution and protect the environment.
4. Check instruments and automatic control equipment
In addition to water level gauge, pressure gauge, safety valve and other instruments installed on the boiler body, in order to supervise, regulate and control the safe and economic normal operation of the boiler equipment, a series of instruments, automatic boiler feed water regulating device, automatic fuel combustion control device, etc. are often installed. Some boiler rooms are also equipped with industrial television and remote control device and even more modern automatic control system, more Scientific supervision. Control boiler operation.
Boiler auxiliary equipment, not every boiler is equipped completely, but with the boiler capacity, type, fuel characteristics and combustion mode as well as water quality characteristics and many other factors to adapt to local conditions, adapt to the times, more practical requirements and objective conditions.
Carbon Enamel Pipe,Steel Tubes For Boilers,Boiler Heating Element,Boiler Air Preheaters Jinan Yuanda Power Equipment Co.,Ltd. , https://www.jnyuandaboilers.com
Boiler auxiliary equipment mainly includes water supply equipment, ventilation equipment, fuel supply, slag removal and dust removal equipment, steam and water pipes and accessories, detection instruments and automatic control equipment.