High Efficiency Coal Fired Steam Boiler 6T Coal Fired Hot Water Boiler

Superior Quality and Efficiency 1-6T Coal Fired Steam Boilers With Best Boiler Service for Textile Factory

Advangtages
The coal-fired boiler is composed of a pulverized coal preparation system, a burner, a heating surface, and an air pre-heater. Common pulverized coal preparation system classifications are as follows.
1. Direct-blowing pulverizing system: The pulverized coal powder is directly sent into the furnace for combustion. It is suitable to use medium-speed and high-speed coal pulverizer, which is suitable for grinding soft bituminous coal and lignite. The disadvantage is that the output of the coal mill and the fineness of the coal powder are related to the boiler load. Therefore, the number of running mills needs to be adjusted as the boiler load changes, and the grinding parts are easily worn. The medium-speed coal mill direct-blowing pulverizing system is divided into two types: positive pressure type and negative pressure type. At present, large-capacity boilers mostly use positive pressure systems.

2. Intermediate storage type powder milling system: It is characterized in that the output of the coal mill and the fineness of the coal powder are independent of the boiler load, and it is suitable for the steel ball coal mill which can grind various kinds of hardness coal. The disadvantage is that the equipment is more complicated than the direct blowing type. The coal pulverizer consumes a large amount of electricity. The power consumption of the coal pulverizer is not much different from that of the full load. Therefore, it should always be operated under full load.

Data sheet 1

Data sheet 2

Pulverized coal burner structure classification, A pulverized coal burner is a device that feeds pulverized coal into a furnace for combustion.

1. Swirling burner. The primary air carrying pulverized coal and the secondary air without pulverized coal are connected to the burner by different pipes. The pulverized coal and air can be thoroughly mixed and form a recirculation zone. Each boiler can be configured with 4 to 48 burners.

2. DC burner: The nozzle is narrow, and the primary and secondary air do not rotate in the burner. The pulverized coal can be completely burned therein.

The heated surface separates the heated surface from the heated surface and the heated surface. Modern large and medium-sized boilers are constructed of water-cooled walls, whereby the water-cooled wall (ie, the heated surface) absorbs the radiant heat in the furnace to evaporate the water into saturated steam. In order to increase the radiant heating surface without increasing the volume of the furnace, the large boiler can be double-exposed water-cooled wall. The superheated heating surface can be divided into a screen type superheater heating surface arranged on the upper part of the furnace and a convection superheater heating surface arranged in the convection flue. The former absorbs radiant heat in the furnace; the latter absorbs convective heat.

The air preheater is installed at the tail of the boiler flue to recover the residual heat of the flue gas and increase the temperature of the combustion air. For high-parameter, high-capacity boilers to increase hot air temperature (>300℃), it is often necessary to stratify the air preheater and the economizer.

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Yongxing Boiler Group Co., Ltd. is a group company specializing in research, development, manufacturing, sales and installation services for various boilers and various thermal energy machinery and equipment.

Yongxing Boiler occupies an area of 60,000m2, with fixed assets of 15 million dollars, and is used for more than 100 sets of large and medium-sized equipment for production. More than 60 sets of advanced equipment for product quality inspection, with 37 series. The boiler and pressure vessel contains 167 specifications and models.

With A-class boiler manufacturing license issued by the General Administration of Quality Supervision, Inspection and Quarantine

A1 and A2 pressure vessel manufacturing licenses

The first-class boiler installation and transformation license

The ISO9001 international quality system certification and so on.

Annual production capacity is over 2000 tons.

YONGXING boiler main product:

Coal fired steam boilers, oil/gas steam boiler,hot water boilers, Thermal oil heaters, hot air furnace, oil/gas burners,chain grate accessories, and other environmentally friendly boilers and pressure vessels .

All the equipment are strictly enforced by the state and Industry standard, reasonable product design, advanced production technology, technical content in the country's similar products in a leading position, with compact structure, low noise, high thermal efficiency, safe and reliable operation, high degree of automation, etc.

All environmental indicators are in line with the national class I regional environmental protection standards require excellent products recommended by the environmental protection department.

Our company holds A-class boiler manufacturing qualification, A1, A2 pressure vessel manufacturing qualification and mechanical and electrical equipment installation engineering professional contracting qualification, and passed the international ISO9001 2000 quality management system certification.

Our company strictly follows the ISO9001 international quality management system guarantee model, carries out quality management and quality inspection and control activities, and the product quality is stable. It was rated as “Contract-honoring and Promise-keeping Enterprise” by the Henan Provincial Administration of Industry and Commerce, “National Honest and Law-abiding Enterprise” by the Ministry of Agriculture, and was included in the member unit by the China Quality and Technical Supervision Association, and has obtained a number of patented technologies.

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