Advantages of dry ash conveyor mesh belt: the conveyor belt is driven by the friction of the active roller, with stable transmission and low wear. The slat pitch of the dry ash conveyor mesh belt is about 70mm, the air gap is large, and the cooling effect is good; the steel belt conveying process It is supported by a simple support shaft, and the force is reasonable. The mesh belt and scale of the conveyor belt are made of heat-resistant stainless steel.
Common problems of dry ash conveyor mesh belt:
It is easy to slip when overloaded. The bottom cleaning system can remove ash and slag from the bottom of the equipment. Increased power consumption, not suitable for large inclination transportation; when a large amount of dust leaks, the cleaning system is loaded with large wear and tear; although the heat resistance is good, the thermal conductivity is low, and the cost of stainless steel is high
The conveying principle of dry ash conveyor mesh belt
Use enclosed mesh belt conveyor. In the process of slagging, the negative pressure of the furnace will suck natural air from both sides of the furnace head and furnace shell to cool it. After cooling, all the hot air enters the furnace.
In response to the above-mentioned problems, Quanda mesh belt has made many improvements to the dry slag machine and the entire dry slag discharge system: the structure of the mesh belt, the cleaning connection method and the large slag discharge technology added at the top and bottom, so that the mesh belt is dry The slag machine is getting better and better. The mesh belt type dry slag machine and supporting mesh belt technology produced by Quanda Metal Mesh Belt Company has been relatively mature, and it has been widely used not only in China, but also in the world, especially in Southeast Asian countries. The current installed capacity can meet 1000MW units.
The composition of dry ash conveyor mesh belt conveyor system:
Dry slag machine is mainly composed of drive system, conveying/cleaning system, hydraulic tensioning system, conveying roller, air intake system and shell. The conveying system is driven by a stainless steel mesh belt, and a scale is fixed on it for conveying and cooling high temperature ash. The cleaning system is driven by a double-loop chain, and the scraper is dragged to remove the ashes that fall on the bottom of the stacked shell. In addition, air inlets are provided on the equipment casing and the nose to suck in ambient air to cool the internal high-temperature soot.
The tensile strength of stainless steel mesh belt: 532kN for 1400mm mesh belt and 608kN for 1600mm mesh belt. The annual elongation (including elongation and wear rate) is about 1 to 2%. The cleaning chain usually adopts φ18×64 high wear-resistant chain, and there are also small units with φ14×50 specifications.
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