A reclaiming device suitable for feeding system in front of furnace

Abstract

The invention discloses a material retrieving device suitable for a feeding system in front of a furnace, comprising a silo, a rotary homogenizer that communicates with the feed port of the silo and can feed materials in a 0-360° direction inside the silo, and a part The planetary reclaimer arranged at the bottom inside the silo; the rotary homogenizer includes a material guide support seat arranged at the feed port of the silo, a material support seat supported on the material guide support seat and connected to the material guide support seat in rotation. The material guide and leveling member and the rotating and uniform material driving mechanism for driving the rotating motion of the material guiding and leveling member; the planetary reclaimer includes a connecting seat that can rotate relative to the silo and has a hollow middle part, and a spiral reclaimer arranged on the connecting seat. The planetary reclaimer is used to drive the rotary motion of the connecting seat and the planetary reclaimer drive mechanism to drive the rotary motion of the screw reclaimer. The part of the spiral reclaimer extends downward through the hollow middle part of the connection seat, and the silo passes through the screw reclaimer. The discharge port communicates with the outside; the invention can feed materials evenly and has the advantages of preventing subsequent equipment from being blocked.

Description

technical field [0001] The invention belongs to the field of pre-feeding of domestic garbage incinerators, and in particular relates to a material retrieving device suitable for a pre-furnace feeding system. Background technique [0002] At present, there are not many domestic waste incinerator feeding systems in front of the furnace that are normal. Basically, there are uneven material accumulation in the silo, and it is difficult to accurately grasp the material storage position in the silo. As a result, the effective use volume of the silo is greatly reduced, and due to the differences in biomass materials, the biomass materials added in different time periods are different, and the accumulation state in the silo is also different, resulting in the use of simple reclaiming There will be uneven retrieving in the method, and it is difficult to reclaim without dead ends when retrieving. [0003] For example, the Chinese invention patent CN102200289A discloses a feeding syst...

AI Technical Summary

Problems solved by technology

This patent can realize that the feeding pipe is not easy to block the material to a certain extent through the inclined feeding double screw machine, but on the one hand, the buffer silo is directly fed to the reclaiming screw machine, and there is a serious phenomenon of uneven feeding , at the same time, for biomass materials, when different types of biomass are used and their bulkiness is different, the amount falling into the reclaiming screw machine and being transported to subsequent equipment may be different, resulting in uneven combustion calorific value, On the other hand, the material in the buffer silo is difficult to feed without dead ends, and there is a situation of long-term accumulation in the corner, and it is easy to scale and adhere to the silo, which increases the difficulty of material cleaning and reduces the effective use volume of the silo

[0006] In addition, the above-mentioned silo retrieving settings, when the rotation of the screw shaft cannot destroy the accumulation of materials, it is easy to form a bridge across these corners and the silo wall, especially for soft biomass such as domestic garbage, straw, etc. In this case, the discharge volume of the screw shaft decreases rapidly, and there is material in the warehouse but the screw shaft is idling, and serious material extrusion occurs during operation. In severe cases, the screw shaft drive can be overloaded and tripped, and the screw shaft is twisted and broken. Sometimes it even triggers spontaneous combustion due to localized biomass frictional heat

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