CN216079768U

CN216079768U - Biomass combustion furnace

Info

Publication number: CN216079768U
Application number: CN202122191202.7U
Authority: CN
Inventors: 金东范
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-10
Filing date: 2021-09-10
Publication date: 2022-03-18
Anticipated expiration: 2031-09-10

Abstract

The utility model provides a biomass combustion furnace, belonging to the technical field of thermal equipment manufacturing; the utility model comprises the following steps: the air inlet pipe is connected with the air inlet pipe; the feeding pipe and the air inlet pipe are both arranged on the ventilation chamber; a fire grate is arranged at the top of the ventilation chamber, and an igniter is arranged on the fire grate; the feeding pipe is provided with a discharge hole which is positioned on the fire grate and is close to the igniter; a rotatable feeding screw is arranged in the feeding pipe along the length direction. The combustion furnace of the utility model feeds materials by the feeding screw, and adopts the air inlet pipe to provide air required by combustion, thus solving the technical problems that the ash content of the biomass material is too high and particles are difficult to combust.

Description

Biomass combustion furnace

Technical Field

The utility model relates to a thermal equipment manufacturing technology, in particular to a biomass combustion furnace, and belongs to the technical field of boiler auxiliary equipment manufacturing production.

Background

Biomass (biomass) refers to non-fossil energy and biodegradable organic matter, derived from plants, animals and microorganisms, including products, by-products, residues, wastes of agriculture, forestry and related industries, and organic components of non-fossil and biodegradable industrial, biological wastes.

The biomass materials of China generally use corn straws, peanut shells, rice husks, mushroom wastes (fungus bags remained after mushroom production) and the like which are remained in rural areas and are difficult to treat after autumn harvest as raw materials to produce biomass particles, so that fuel is supplied at low price, and the renewable materials in the rural areas are treated. However, the biomass material produced in China at present contains more impurities such as sand, dust and the like, and is far higher than the international ash content by 0.2-5 specification. And solid granular impurities formed in the corn straws, the peanut shells and the rice husks are more.

The Chinese government plans to use the waste or incineration garbage in the countryside to make biomass particles, and provide the biomass particles to the countryside users at low cost so as to prevent the private incineration of the garbage in the countryside, thereby reducing the environmental pollution, reducing the ozone diffusion and building a clean and suitable countryside, but the prior art does not have a burner meeting the requirement.

Therefore, the development of a burner capable of burning biomass materials with high ash content and granular biomass materials is a technical problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model provides a novel biomass combustion furnace, which can realize full combustion of biomass materials by a spiral feeding structure and an external ventilation structure so as to solve the technical problem that granular biomass materials with over-high ash content are difficult to utilize in the prior art.

The biomass combustion furnace of the embodiment of the utility model comprises: the air inlet pipe is connected with the air inlet pipe; the feeding pipe and the air inlet pipe are both arranged on the ventilation chamber;

a fire grate is arranged at the top of the ventilation chamber, and an igniter is arranged on the fire grate; the feeding pipe is provided with a discharge hole which is positioned on the fire grate and is close to the igniter;

a rotatable feeding screw is arranged in the feeding pipe along the length direction.

The biomass combustion furnace is characterized in that the air inlet pipe is provided with an air supply pipe, and the air inlet pipe is connected with the feeding pipe through the air supply pipe.

The biomass burning furnace as described above, wherein the furnace further comprises: a boiler connecting plate; the inlet pipe with the air-supply line is all fixed on the boiler connecting plate, and the perpendicular to the boiler connecting plate.

The biomass combustion furnace is characterized in that the air inlet pipe is provided with a plurality of air outlets, and the plurality of air outlets are arranged in the ventilation chamber and are positioned below the fire grate.

The biomass combustion furnace is characterized in that the grate is provided with a plurality of small holes which are annularly arranged, and the discharge hole is positioned in the center of the grate.

The biomass burning furnace as described above, wherein the furnace further comprises: a tray; the air inlet pipe and the feeding pipe are both arranged on the tray; the bottom of the tray is also provided with rollers.

The biomass combustion furnace as described above, wherein the grate is disc-shaped or square.

The biomass combustion furnace as described above, wherein the air inlet pipe has an air inlet, and the air inlet is provided with a blower.

The biomass combustion furnace is characterized in that the feeding pipe is also provided with a feeding hole, and a storage tank is arranged on the feeding hole.

The biomass combustion furnace as described above, wherein the feeding screw is provided with a driving motor.

The combustion furnace of the utility model feeds materials by the feeding screw, and adopts the air inlet pipe to provide air required by combustion, thus solving the technical problems that the ash content of the biomass material is too high and particles are difficult to combust.

Drawings

FIG. 1 is a schematic top view of a biomass burning furnace according to an embodiment of the present invention;

FIG. 2 is a schematic side sectional view of a biomass combustion furnace according to an embodiment of the utility model;

fig. 3 is a schematic rear view of a biomass combustion furnace according to an embodiment of the present invention.

Detailed Description

FIG. 1 is a schematic top view of a biomass burning furnace according to an embodiment of the present invention; FIG. 2 is a schematic side sectional view of a biomass combustion furnace according to an embodiment of the utility model; and is described in detail in conjunction with fig. 3.

As shown in fig. 1 and 2, the biomass combustion furnace according to the embodiment of the present invention includes: a feeding pipe 1, an air inlet pipe 2 and a ventilation chamber 3; the feeding pipe 1 and the air inlet pipe 2 are both arranged on the ventilation chamber 3; the feeding pipe 1 and the air inlet pipe 2 can be respectively communicated with the ventilation chamber 3.

A grate 30 is arranged at the top of the ventilation chamber 3, and an igniter 31 is arranged on the grate 30; the feeding pipe 1 is provided with a discharge hole 12, and the discharge hole 12 is positioned on the grate 30 and is close to the igniter 31; thus, the raw material led in from the discharge port can be started to burn through the igniter.

A rotatable feeding screw 10 is arranged in the feeding pipe 1 along the length direction.

Generally, the feeding pipe 1 is further provided with a feeding hole 11, and a storage tank or other raw material conveying equipment is installed on the feeding hole 11, so as to ensure that the raw material can be continuously supplied to the feeding screw 10.

In practical use, the feeding screw 10 is provided with a driving motor 15. The drive motor 15 drives the feed screw 10, so that an uninterrupted material transport is achieved.

In the using process of the utility model, the initial fuel is introduced onto the fire grate through the feeding screw, and after a certain amount of fuel is put on the fire grate, the initial fuel is ignited by using an igniter and indirect heat below the fire grate; if the fuel directly contacts the igniter, the life of the igniter will be shortened, and thus the heat will be concentrated and quickly released through the outer shell of the igniter to achieve ignition while the life of the igniter is prolonged as much as possible.

In the combustion process of the embodiment, feeding is carried out through the feeding screw, the air inlet pipe is adopted to provide air required by combustion, the technical problems that ash content of biomass materials is too high and particles are difficult to combust can be solved, and the biomass material feeding device can be applied to an original boiler and can also be used on a newly manufactured boiler or drying equipment.

In the biomass combustion furnace of the embodiment, the grate 30 is provided with a plurality of small holes arranged in an annular shape, and the discharge hole 12 is located at the center of the grate 30.

Additionally, to accommodate the boiler, the grate 30 is generally disk-shaped or square in shape.

In the biomass combustion furnace of the embodiment, the air inlet pipe 2 is provided with an air supply pipe 21, and the air inlet pipe 2 is connected with the feeding pipe 1 through the air supply pipe 21.

In this embodiment, the air inlet pipe 2 is connected to the feed pipe 1, so as to prevent hot gas in the fire from flowing into the fuel storage device through the feed pipe 1, thereby eliminating backfire caused by the fact that the flame burns in a reverse direction all the time with the fuel due to the stop of combustion, and further helping smooth delivery of the fuel due to the forward air pressure in the air inlet pipe 2.

The biomass combustion furnace of the present embodiment, further, the combustion furnace further includes: a boiler connecting plate 5; the inlet pipe 1 with the air-supply line 2 is all fixed on boiler connecting plate 5, and perpendicular to boiler connecting plate 5. The whole biomass combustion furnace can be arranged on the boiler through a boiler connecting plate.

In the biomass combustion furnace of the present embodiment, the air inlet pipe 2 has a plurality of air outlets 20, and the plurality of air outlets 20 are all disposed in the ventilation chamber 3 and located below the grate 30. The plurality of air outlets 20 can ensure smooth progress of combustion.

The biomass combustion furnace of the present embodiment, wherein the combustion furnace further includes: a tray 4; the air inlet pipe 2 and the feeding pipe 1 are both arranged on the tray 4; the bottom of the tray 4 is also provided with rollers 40.

The tray 4 can conveniently move the whole combustion furnace, and is convenient to install and disassemble.

The biomass combustion furnace of the present embodiment is provided with an air inlet on which a blower 25 is mounted, in the air inlet pipe 2.

The air blower 25 can provide air flow to the maximum extent to meet the combustion requirement.

The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments. Through the above description of the embodiments, those skilled in the art will clearly understand that the above embodiment method can be implemented by some modifications plus the necessary general technical overlap; of course, the method can also be realized by simplifying some important technical features in the upper level. Based on such understanding, the technical solution of the present invention essentially or contributing to the prior art is: overall layout and structure, and to accommodate the structure described in the various embodiments of the present invention.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A biomass burning furnace, comprising: the air inlet pipe is connected with the air inlet pipe; the feeding pipe and the air inlet pipe are both arranged on the ventilation chamber;

2. The biomass combustion furnace as recited in claim 1, wherein the air inlet pipe is provided with an air supply pipe, and the air inlet pipe is connected to the feed pipe through the air supply pipe.

3. The biomass burner of claim 1, further comprising: a boiler connecting plate; the inlet pipe with the air-supply line is all fixed on the boiler connecting plate, and the perpendicular to the boiler connecting plate.

4. The biomass combustion furnace as claimed in any one of claims 1 to 3, wherein the air inlet duct has a plurality of air outlets, each of the plurality of air outlets being disposed in the ventilation chamber and below the grate.

5. The biomass combustion furnace as claimed in any one of claims 1 to 3, wherein the grate is provided with a plurality of small holes arranged in a ring shape, and the discharge port is positioned at the center of the grate.

6. The biomass burner of claim 1, further comprising: a tray; the air inlet pipe and the feeding pipe are both arranged on the tray; the bottom of the tray is also provided with rollers.

7. The biomass combustion furnace as recited in claim 1, wherein the grate is disk-shaped or square-shaped.

8. The biomass combustion furnace as claimed in claim 1, wherein the air inlet pipe has an air inlet, and a blower is mounted on the air inlet.

9. The biomass combustion furnace as claimed in claim 1, wherein the feed pipe is further provided with a feed inlet, and a storage tank is arranged on the feed inlet.

10. Biomass burning furnace according to any of the claims 1-3, characterized in that the feed screw is provided with a drive motor.