CN201459069U

CN201459069U - Furnace hearth of biomass semi-gasification furnace

Info

Publication number: CN201459069U
Application number: CN2009201229239U
Authority: CN
Inventors: 王晟
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-06-25
Filing date: 2009-06-25
Publication date: 2010-05-12
Anticipated expiration: 2019-06-25

Abstract

The utility model discloses a furnace hearth of a biomass semi-gasification furnace. The furnace hearth comprises a metal heat-conduction inner layer, a metal heat-conduction outer layer and a heat-isolating layer which are sequentially arranged from inside to outside. The heat-isolating layer is made of heat-resisting materials, and an air channel is arranged between the metal heat-conduction inner layer and the metal heat-conduction outer layer. The metal heat-conduction inner layer and the metal heat-conduction outer layer are adopted at the inner side of the furnace hearth, and the air channel used for secondary air to pass through is arranged between the metal heat-conduction inner layer and the metal heat-conduction outer layer, so as to greatly increase the speed from ignition to gasification, and to greatly improve the combustion stability, thereby being convenient for users to use; the heat-isolating layer is adopted at the outer side of the furnace hearth, which not only reduces heat dissipation and energy losses, but also improves the energy utilizing rate; moreover, the furnace hearth also has the characteristics of safe as well as economical using, simple structure and low cost.

Description

The burner hearth of biomass half-gasification oven

[technical field]

The utility model relates to biomass half-gasification oven, relates in particular to the burner hearth of biomass half-gasification oven.

[background technology]

Biomass half-gasification oven does not need the inflammable gas of biomass combustion gasification is collected, purified and transmits, and does not exist tar to handle problems, and therefore non-secondary pollution, and energy utilization rate height, have vast market prospect.At present, general iron burner hearth or the refractory brick of adopting in the furnace wall of biomass half-gasification oven is made.Adopt under the situation of iron burner hearth, the speed that enters gasifying stage from lighting a fire to is fast, and still, externally dissipated heat is big, and energy waste is big, and energy utilization rate is low; Though externally dissipated heat is little for the burner hearth of firebrick structure, energy waste is little,, the speed of its gasification of lighting a fire is slow, uses inconvenience, and especially the family expenses half-gasification oven need shift to an earlier date the dozens of minutes igniting, and is very inconvenient to the user.

[summary of the invention]

The purpose of this utility model solves the problems of the prior art exactly, proposes a kind of burner hearth of biomass half-gasification oven, can either add the speed of fast ignition to gasifying stage, and externally heat scatters and disappears and lacks again, and energy waste is little.

For achieving the above object, the utility model proposes a kind of burner hearth of biomass half-gasification oven, comprise metal heat-conducting internal layer, the metal heat-conducting skin that sets gradually from inside to outside, the thermofin that adopts heat-stable material, be provided with the air channel between described metal heat-conducting internal layer and the metal heat-conducting skin.

As preferably, described metal heat-conducting internal layer and metal heat-conducting skin all adopt steel.Good heat-transfer.

As preferably, described metal heat-conducting internal layer and metal heat-conducting outer layer thickness are 0.8mm.Not only proof strength but also cost were low.

As preferably, described thermofin adopts refractory brick.Heat-proof quality is good.

As preferably, the thickness of described thermofin is 3.0mm.Not only proof strength but also cost were low.

The beneficial effects of the utility model: the utility model is at inboard metal heat-conducting internal layer and the metal heat-conducting skin of adopting of burner hearth, and between is provided with the air channel that secondary air is passed through, the speed and the combustion stability of the gasification of lighting a fire have been improved greatly, convenient for users, thermofin is adopted in the burner hearth outside, has reduced heat and has scattered and disappeared, and has reduced energy waste, improved energy utilization rate, used safer, economical.The utility model is simple in structure, and cost is low.

Feature of the present utility model and advantage will be elaborated in conjunction with the accompanying drawings by embodiment.

[description of drawings]

Fig. 1 is the structural representation of the burner hearth of the utility model biomass half-gasification oven.

[embodiment]

Consult Fig. 1, the burner hearth of biomass half-gasification oven, comprise the metal heat-conducting internal layer 1 that sets gradually from inside to outside, metal heat-conducting skin 2, adopt the thermofin 3 of heat-stable material, being provided with air channel 4. described metal heat-conducting internal layers 1 and metal heat-conducting skin 2 between described metal heat-conducting internal layer and the metal heat-conducting skin and all adopting steel. outer 2 thickness of described metal heat-conducting internal layer 1 and metal heat-conducting are that the described thermofin 3 of 0.8mm. adopts refractory brick. the thickness of described thermofin 3 is to adopt metal heat-conducting internal layer 1 and metal heat-conducting skin 2 in the 3.0mm. burner hearth, and between is provided with the air channel 4 that secondary air is passed through, improved the speed of the gasification of lighting a fire greatly, convenient for users, burner hearth adopts thermofin 3 outward, having reduced heat scatters and disappears, reduced energy waste, having improved energy utilization rate. the utility model is simple in structure, cost is low, and is practical.

Though the utility model illustrates and describes by the reference preferred embodiment,, those skilled in the art should understand, and in the scope of claims, can do the various variation on form and the details.

Claims

1. the burner hearth of biomass half-gasification oven is characterized in that: comprise metal heat-conducting internal layer, the metal heat-conducting skin that sets gradually from inside to outside, the thermofin that adopts heat-stable material, be provided with the air channel between described metal heat-conducting internal layer and the metal heat-conducting skin.

2. the burner hearth of biomass half-gasification oven as claimed in claim 1, it is characterized in that: described metal heat-conducting internal layer and metal heat-conducting skin all adopt steel.

3. the burner hearth of biomass half-gasification oven as claimed in claim 2, it is characterized in that: described metal heat-conducting internal layer and metal heat-conducting outer layer thickness are 0.8mm.

4. the burner hearth of biomass half-gasification oven as claimed in claim 1 is characterized in that: described thermofin employing refractory brick.

5. the burner hearth of biomass half-gasification oven as claimed in claim 4, it is characterized in that: the thickness of described thermofin is 3.0mm.