Biomass gasification burner

Abstract

The invention discloses a biomass gasification burner. The biomass gasification burner comprises a furnace; a movable grate in the furnace divides the furnace into a furnace chamber and an ash chamber; the upper side of the furnace is provided with a feeding device and burner ports; the furnace chamber comprises an inner liner and an outer liner; a gap a is reserved between the inner liner and the outer liner; the burner port is communicated with the inner liner; the outer liner is welded with two layers of burner ports with similar structures in clearance fit; the feeding device has an inner layer structure and an outer layer structure; a gap b is reserved between the inner layer structure and the outer layer structure; the gap b is communicated with a feeding device passage through a guide hole; the inner layer structure is communicated with the inner liner; the outer layer structure is fixedly welded to the outer wall of the outer liner; the gap b is not communicated with the gap a; the biomass gasification burner also comprises a primary fan and a secondary fan; the primary fan is communicated with the feeding device passage and the ash chamber through a pipeline; and the secondary fan is communicated with the gap a and the gap b through a pipeline. The biomass gasification burner is reasonable in structure, large in power, sufficient in combustion, high in heat efficiency, low in emission, convenient to installat, small in occupied space and low in operation cost.

Description

technical field [0001] The invention belongs to the technical field of energy utilization for energy saving and emission reduction, and relates to a device for burning renewable resources—biomass raw materials to provide heat energy, in particular to a biomass gasification burner. Background technique [0002] With the continuous development of the world economy, energy and environmental issues have become increasingly prominent. In order to cope with the coming energy crisis, people have found a kind of renewable energy—biomass in their constant search. Biomass energy has received unprecedented attention due to its wide source, large quantity, renewable, zero emission and environmental friendliness. Biomass burners came into being. [0003] The details of the existing burners are as follows: [0004] a. Feeding device [0005] Method 1: The upper part of the intermittent feeding furnace is made larger, which can store materials for a certain period of time. During opera...

AI Technical Summary

Problems solved by technology

[0019] (1) Intermittent feeding is not suitable for continuous operation and increases labor intensity

[0020] (2) The feed channel is welded to the inner tank, and the heat dissipation here is caused by the existence of heat conduction and heat radiation, which reduces the thermal efficiency

[0021] (3) The furnace is operated under positive pressure, the seal is not tight or the sowing wheel is worn, causing high-temperature gas to leak from here, igniting the heated biomass particles, causing backfire, causing fire and burning the feeding channel, etc.

[0023] (1) If the inner tank is all made of stainless steel, it will run for a long time, creep will occur at high temperature, and the strength will decrease;

[0024] (2) If the inner tank is built with castables / refractory bricks, it will affect the infection effect, the outlet gas / flue gas temperature is high, and the fire outlet is easy to burn out;

[0027] (2): Increased equipment investment and operation and maintenance costs

[0028] (3): take up space

[0030] (1) The fire temperature is relatively high, and water cooling is required, and the heat loss is relatively large;

[0031] (2) Refractory mud is poured on the inner side, which needs to be replaced irregularly (2-3 months), and the material cost is relatively high;

[0035] Existing burners often do not consider the inspection port, and it is very inconvenient if the furnace needs to be repaired

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