High Efficiency Reciprocating Grate Step Mechanical Furnace Grate Combustion Temperature

Step grate bar / Reciprocating grate bar for boiler coal fire power plant

Technical characteristics of waste combustion in mechanical grate furnace

1. Combustion temperature
The combustion temperature of garbage refers to the reasonable temperature required for the complete decomposition of combustible and toxic substances in garbage at high temperature until they are destroyed.
According to experience, the temperature ranges between 800 ℃ ~ 1000 ℃.
2. Garbage burning process
In terms of the incineration process of garbage on the grate, it can be divided into three stages:
Stage 1: dry, dehydrate and bake the garbage.
In view of China's current high moisture, low calorific value of waste incineration, this stage is essential.
General in order to shorten the waste water, drying and baking time, once the grate area into the wind passes the heating (or high temperature flue gas or waste steam to heat the air into the furnace), usually in the temperature of 200 ℃ or so.
Stage 2: high temperature combustion.
Usually junk at about 900 ℃ range on the grate combustion, so the inlet air temperature of the fire grate area must be corresponding lower, in order to avoid the high temperature will damage the grate, shorten service life.
Stage 3: embers.
After the complete combustion of garbage into ash slag, in this stage the temperature gradually decreased, slag was discharged from the furnace.

Advantages:

1. The height of the horizontal reciprocating grate is lower than that of the inclined reciprocating grate, which can effectively save the area of ​​the boiler room, thereby reducing the installation and use cost of the user.

2. In the horizontal reciprocating grate, through the operation of the equipment, the fuel layer (coal layer) can be uniformly covered on the grate, and at the same time, compared with the conventional grate, the internal connection of the grate is relatively tight, and there is no air leakage. The area, so that the wind speed through the coal seam is relatively uniform, the content of coal ash after combustion is significantly reduced.

3. The coal seam is wave-shaped on the horizontal reciprocating grate, and its surface area is 30% to 50% larger than the horizontal surface area of ​​the grate. Therefore, the flow rate of the flue gas leaving the surface of the coal seam is relatively slow, so that the amount of fly ash is reduced compared with the chain grate. 10%.

4. The combustion efficiency of the fuel in the horizontal reciprocating grate is relatively high. Therefore, the furnace temperature is high and the combustion is relatively sufficient, so that coals with strong coking properties can be burned. It can also burn cohesive biomass fuel, which greatly improves the adaptability of the grate to fuel.

5. The fuel preparation and dust removal equipment is simple, the overall cost, low operating cost and simple operation management.
Data sheet of reciprocating grate stoker

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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