CN209893374U

CN209893374U - Biomass burner

Info

Publication number: CN209893374U
Application number: CN201920562697.XU
Authority: CN
Inventors: 王明华
Original assignee: Linyi Muzi Heat Energy Technology Co Ltd
Current assignee: Linyi Muzi Heat Energy Technology Co Ltd
Priority date: 2019-04-23
Filing date: 2019-04-23
Publication date: 2020-01-03
Anticipated expiration: 2029-04-23

Abstract

The utility model relates to a biomass burner, which comprises a bottom frame, wherein a combustion chamber is fixedly arranged on one side of the upper surface of the bottom frame, an air supply assembly and a feeding assembly are fixedly arranged on the other side of the upper surface of the bottom frame, a discharge port of the feeding assembly is connected with the top end of a feeding pipe, and the bottom end of the feeding pipe extends into the inner cavity of the combustion chamber; the air supply assembly comprises a fan, an air outlet of the fan is communicated with an air box, the air box is connected with one end of a first air pipe and one end of a second air pipe respectively, the first air pipe is communicated with the top end of the feeding pipe, and the second air pipe is communicated with the bottom end of the feeding pipe. The utility model discloses well air can fully contact with the material in the combustor inner chamber, can realize the abundant burning of biomass fuel in the combustor, can avoid flame in the combustion chamber to burn along material in the conveying pipe, causes the condition of damage material pipe.

Description

Biomass burner

Technical Field

The utility model belongs to the technical field of the combustor, concretely relates to biomass combustion machine.

Background

The combustor puts the material in self combustion chamber, and the flame after the material burning in the combustion chamber is spout from the flame jet orifice and is used for heating the boiler, and water in the boiler is heated into steam to flame, and steam can promote the steam turbine and rotate the purpose in order to realize the electricity generation, and biomass combustion machine is the burner that takes biomass material as fuel.

The inventor knows that the traditional combustor only inputs air at a feed inlet for combustion and oxygen consumption, the air is unevenly distributed in a combustion chamber, and partial biomass fuel cannot be fully combusted; in the process that the material is sent into the combustor at the conveying pipe, the flame in the combustor probably burns along the material in the conveying pipe, causes the conveying pipe to be heated and damages.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the defects of the prior art, providing a biomass burner which can solve at least one technical problem.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a biomass burner comprises a bottom frame, wherein a combustion chamber is fixedly arranged on one side of the upper surface of the bottom frame, an air supply assembly and a feeding assembly are fixedly arranged on the other side of the upper surface of the bottom frame, a discharge port of the feeding assembly is connected with the top end of a feeding pipe, and the bottom end of the feeding pipe extends into the inner cavity of the combustion chamber;

the air supply assembly comprises a fan, an air outlet of the fan is communicated with an air box, the air box is connected with one end of a first air pipe and one end of a second air pipe respectively, the first air pipe is communicated with the top end of the feeding pipe, and the second air pipe is communicated with the bottom end of the feeding pipe.

Adopt same typhoon machine simultaneously for first trachea and second trachea air feed, first trachea and the tracheal top of second communicate with the top and the bottom of conveying pipe respectively, and the material that first trachea can assist the conveying pipe top gets into the combustion chamber inner chamber, and the second trachea can be followed the conveying pipe bottom and directly insufflate in the combustion chamber inner chamber, and the flame of holding down the conveying pipe lower extreme avoids flame to make material burning in the conveying pipe in getting into the combustion chamber.

The utility model has the advantages that:

the utility model discloses supply air respectively on the top and the bottom of conveying pipe, can utilize in the supplementary material transport that realizes in the conveying pipe of gas, the height of flame in the low combustion chamber, make material burning in the conveying pipe in avoiding flame entering combustion tube in the combustion chamber.

The first air pipe and the second air pipe supply air simultaneously, the number of air supply channels is increased, and air in the combustion chamber is distributed more uniformly.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.

Fig. 1 is a sectional view of the overall structure in the front view direction in the embodiment of the present invention;

in the figure: 1. an electric motor; 2. a screw shaft; 3. a housing; 4. a feed inlet; 5. a fan; 6. A feed pipe; 7. a chassis; 8. a second air pipe; 9. a support plate; 10. a flame jet orifice; 11. A housing; 12. a wall body; 13. a top cover; 14. an air box; 15. a first air pipe.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

In order to solve the technical problems existing in the background technology, the utility model provides a biomass burner, which comprises a bottom frame, wherein a combustion chamber is fixedly arranged on one side of the upper surface of the bottom frame, an air supply assembly and a feeding assembly are fixedly arranged on the other side of the upper surface of the bottom frame, a discharge hole of the feeding assembly is connected with the top end of a feeding pipe, and the bottom end of the feeding pipe extends into the inner cavity of the combustion chamber;

Further, the combustion chamber includes the shell, the inner wall of shell is equipped with the wall body, the top of combustion chamber is equipped with the top cap, and the bottom is equipped with the backup pad, backup pad and top cap respectively with shell sealing connection.

Further, the wall body is composed of refractory bricks.

Further, the feeding assembly comprises a shell fixedly connected with the bottom frame, the shell is of a cylindrical structure, a spiral shaft is arranged in the shell, the top end of the spiral shaft is driven by a motor, a feeding hole is formed in the bottom end of the shell, and a discharging hole is formed in the upper portion of the shell.

Further, the screw shaft includes a shaft body and screw teeth.

Further, the discharge port is connected with a feeding pipe, and the feeding pipe is obliquely arranged.

Further, the feeding pipe penetrates through the shell, and a flame jet orifice is arranged on one side, opposite to the feeding pipe, of the shell.

In a typical embodiment of the utility model, as shown in fig. 1, a biomass burner comprises a bottom frame 7, a combustion chamber is fixedly arranged on one side of the upper surface of the bottom frame 7, an air supply assembly and a feeding assembly are fixedly arranged on the other side of the upper surface of the bottom frame 7, a discharge port of the feeding assembly is connected with the top end of a feeding pipe 6, and the bottom end of the feeding pipe 6 extends into the inner cavity of the combustion chamber;

the air supply assembly comprises a fan 5, an air outlet of the fan 5 is communicated with an air box 14, the air box 14 is respectively connected with one end of a first air pipe 15 and one end of a second air pipe 8, the first air pipe 15 is communicated with the top end of the feeding pipe 6, and the second air pipe 8 is communicated with the bottom end of the feeding pipe 6.

A combustion chamber: the combustion chamber includes shell 11, the inner wall of shell 11 is equipped with wall body 12, the top of combustion chamber is equipped with top cap 13, and the bottom is equipped with backup pad 9, backup pad 9 and top cap 13 respectively with shell 11 sealing connection.

Specifically, a feed inlet 4 is arranged on one side of the combustion chamber, the feed inlet 4 is used for passing through a feed pipe 6 and a second air pipe 8, a flame jet orifice 10 is arranged on the other side of the combustion chamber, and one preferable shape of the cross section of the flame jet orifice 10 is a circle, but the shape of a square, a triangle and the like is not limited.

Further, the feeding assembly comprises a shell 3 fixedly connected with an underframe 7, the shell 3 is of a cylindrical structure, a screw shaft 2 is arranged in the shell 3, the top end of the screw shaft 2 is driven by a motor 1, a feeding hole 4 is formed in the bottom end of the shell 3, and a discharging hole is formed in the upper portion of the shell 3.

Specifically, in some embodiments, the output shaft of the motor 1 is directly connected to the screw shaft 2 through a coupling; in other embodiments, the end of the output shaft of the motor 1 and one end of the screw shaft 2 are respectively provided with a pulley, and the two pulleys are connected by a belt.

Specifically, the feeding assembly adopts a spiral feeding structure, the spiral shaft 2 includes a single rotating shaft and spiral teeth mounted on the rotating shaft, and the spiral feeding structure belongs to the existing structure and is not described herein again.

Further, the discharge port is connected with a feeding pipe 6, and the feeding pipe 6 is arranged obliquely.

Further, the feeding pipe 6 penetrates through the shell 11, and a flame jet orifice 10 is arranged on one side of the shell 11, which is opposite to the feeding pipe 6.

The working principle is as follows: when the device is used, a material is fed into the shell 3 of the feeding assembly from the feeding port 4, the material spirally rises to the discharging hole from the feeding port 4 under the rotation of the spiral shaft 2, the material enters the feeding pipe 6, the material in the feeding pipe 6 is obliquely fed downwards under the action of gravity, and the material enters the inner cavity of the combustion chamber for combustion.

In the process of the feeding pipe 6, the first air pipe 15 blows air from the top end of the feeding pipe 6, the material can be prevented from being blocked in the feeding pipe 6, the feeding of the feeding pipe 6 is assisted, and meanwhile, the air discharged from the first air pipe 15 can enter the inner cavity of the combustion chamber to provide enough oxygen for the combustion of the material in the combustion chamber.

In the feeding process of the feeding pipe 6, the second air pipe 8 blows air from the bottom end of the feeding pipe 6, the air is directly introduced into the inner cavity of the combustion chamber, the flame height of the feeding pipe 6 in the combustion chamber can be reduced, the phenomenon that the flame enters the feeding pipe 6 due to overhigh flame height is avoided, and the material in the feeding pipe 6 is prevented from being combusted.

Although the present invention has been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without inventive work are still within the scope of the present invention.

Claims

1. A biomass burner is characterized by comprising a bottom frame, wherein a combustion chamber is fixedly arranged on one side of the upper surface of the bottom frame, an air supply assembly and a feeding assembly are fixedly arranged on the other side of the upper surface of the bottom frame, a discharge hole of the feeding assembly is connected with the top end of a feeding pipe, and the bottom end of the feeding pipe extends into the inner cavity of the combustion chamber;

2. The biomass burner of claim 1, wherein the combustion chamber comprises a housing, the inner wall of the housing is provided with a wall, the top of the combustion chamber is provided with a top cover, the bottom of the combustion chamber is provided with a support plate, and the support plate and the top cover are respectively connected with the housing in a sealing manner.

3. The biomass burner of claim 2, wherein the wall is comprised of refractory bricks.

4. The biomass burner of claim 1, wherein the feeding assembly comprises a housing fixedly connected with the bottom frame, the housing is of a cylindrical structure, a screw shaft is arranged in the housing, the top end of the screw shaft is driven by a motor, the bottom end of the housing is provided with a feeding hole, and the upper part of the housing is provided with a discharging hole.

5. The biomass burner of claim 4, wherein the screw shaft includes a shaft body and a screw tooth.

6. The biomass burner of claim 5, wherein the discharge port is connected to a feed pipe, and the feed pipe is arranged in an oblique manner.

7. The biomass burner of claim 1, wherein the feed tube extends through a housing, and a flame jet is disposed in the housing on a side opposite the feed tube.