Method for skipping biomass energy power plant system

Abstract

Feeding method of biomass power plant feeding system is that a straw bulk is transported and enhanced delivery method, especially for the yellow straw broken, the material on the feeding method as follows: straw package grab crane (1) -> disport-platform (2) -> first board chain conveyor (3) -> second board chain conveyor (4) -> straw crusher (5) -> belt conveyor with corrugated wall ( 6) -> Front silo distributor (7) -> boiler feed screw conveyor (8) -> furnace, the system layout is compact, intermediate link small, high reliability, strong adaptability to different material characteristics.

Description

technical field [0001] The feeding system of the biomass energy power plant is a conveying and lifting method for straw bulk materials, especially for the lifting and conveying of bulk materials after the yellow straw is crushed. Background technique [0002] Straw power plants are collectively referred to as biomass power plants. The fuel required for boiler combustion is various plant wastes such as rice stalks, wheat stalks, cotton stalks, corn stalks, rape stalks, peanut shells, bark, branches, corncobs, wood chips, etc., among which rice stalks , wheat stalks are called yellow stalks, and the rest are called gray stalks. [0003] At present, the form of fuel delivery to biomass power plants can be divided into two ways: package feed into the plant and bulk feed into the plant. Packing materials into the factory: the collected straw is packed into bags from each collection point of straw, and transported to the straw bag warehouse of the power plant for storage. Bulk m...

AI Technical Summary

Problems solved by technology

[0013] b. In order to reduce the land occupation of the factory area, bucket elevators are usually used as vertical lifting equipment for materials. When bucket elevators are used as lifting equipment for materials, due to the relatively light bulk density of straw (gray straw is ~0.1t / m 3 , the yellow straw is ~0.03t / m 3 ), the material is not easy to throw away, so the phenomenon of material return is more serious, causing some materials to circulate up and down in the bucket elevator, reducing the output of the bucket elevator

[0014] c. Because the straw contains impurities such as sediment, the service life of the cutter of the crusher is short. The cutter for single-stage crushing needs to be replaced after 6 hours of continuous use; After 48 hours of continuous use, the cutter head needs to be welded and polished

[0015] d. Gray straw such as bark and cotton stalks will produce cotton-like substances during the crushing process. When such substances enter the next-level transfer equipment, they are easily suspended at the entrance of the next-level transfer equipment, causing material blockage

[0016] e. Since straw fuel has low calorific value and is easy to burn, the stable operation of the feeding system directly affects the normal operation of the boiler

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