Biomass feed divider with changeable trough obliquity and vibration frequency and amplitude

Abstract

The invention relates to a biomass feed divider with changeable trough obliquity and vibration frequency and amplitude, which realizes continuous, stable and safe feed division by adopting two regulating measures of changing obliquity of a trough and changing vibration frequency and amplitude and by exciting force generated by a vibrating motor (9). The device is formed by arranging one or a plurality of independent distributors in parallel, wherein each distributor mainly comprises a trough body (4), a vibrating motor (9), an elevating (8), a spring supporting mechanism (11) and an auxiliary mechanism; the trough body (4) is supported by the spring supporting mechanism (11) at the front part and the elevating (8) at the rear part, the vibrating motor (9) is arranged in the middle of the bottom of the trough body (4), and the rear part of the trough body (4) is connected with bulkhead by canvas (3). The device integrates material storage and material distribution, is not only suitable for hard biomass but also is suitable for soft biomass, and has lateral expansibility, thereby being convenient to be used together with material equipment of various types.

Description

technical field [0001] The invention relates to a biomass (including straw) material distributing device, which belongs to the technical field of biomass power generation feeding and conveying. technical background [0002] my country is very rich in biomass resources, among which the annual output of crop straw resources exceeds 700 million tons (the calorific value is equivalent to 350 million tons of standard coal), and there are also a large amount of forestry waste, sludge, and garbage. Biomass power generation is an important way to effectively utilize biomass resources. The development of biomass power generation is not only conducive to saving energy, optimizing the energy structure, and protecting the ecological environment, but also conducive to improving rural living conditions, increasing farmers' income, and promoting local economic development. [0003] At present, direct combustion power generation is the mainstream of biomass power generation. By the end of...

AI Technical Summary

Problems solved by technology

A big disadvantage of this method of distributing materials is that there is only a large-capacity silo but no material storage capacity, how much material is fed in and how much material is discharged, and the function of buffering and balancing operations of the material distributing device system is not fully utilized.

Once a certain amount of material is accumulated in the material distribution device, the following series of problems will appear: due to the low density of biomass, different sizes and lengths, intricate shapes, and high bulkiness, it is easy to be overhead during the conveying process, causing the screw to run idly and reducing the uniformity of the output. Most of the hard straw is very tough, and the material is easy to be jammed between the spiral blade and the shell, which will aggravate the wear of the blade. In severe cases, the car will be stuffy and the motor will be burned; , easy to wrap around the screw shaft and blades, increase the power consumption of the equipment, and destroy the rotation balance, greatly reduce the strength and stiffness of the screw shaft, and even cause fatigue fracture

In short, the existing biomass material distribution device does not give full play to the material storage and distribution capacity of the material distribution equipment. The emergence of the above problems greatly reduces the service life of the equipment, and the intermittent feeding also seriously affects This reduces the efficiency of the use of biomass boilers, virtually increases the cost of the enterprise, and reduces the economic benefits

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