Energy-saving and emission-reducing burner of kiln

Abstract

The utility model relates to the technical field of kiln combustors, and discloses an energy-saving and emission-reducing combustor of a kiln. The energy-saving and emission-reducing burner for the kiln comprises a mixing pipe, a connecting pipe is fixedly installed at the front end of the mixing pipe, a protective pipe is fixedly installed at the front end of the connecting pipe, a connecting frame is fixedly installed on the left side of the mixing pipe, and a mixing air pump is installed in the center of the connecting frame in a penetrating and penetrating mode. The fuel is conveyed into the mixing pipe through the conveying air pump and enters the mixing pipe in an atomized state under the driving of gas blown out of the conveying air pump, due to the arrangement of the guide pipe, air conveyed into the mixing pipe through the mixing air pump can form vortex in the mixing pipe under the guiding of the guide pipe and the inner wall of the mixing pipe, and the air and the fuel in the atomized state are fully mixed; therefore, the fuel in the atomized state can absorb sufficient oxygen during combustion, and the situation that carbon monoxide is formed due to insufficient combustion of the fuel caused by insufficient oxygen, and the carbon emission of the combustor is affected is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of kiln burners, in particular to a kiln energy-saving and emission-reducing burner. Background Art

[0002] Burner is a general term for devices that make fuel and air spray out in a certain way to mix and burn. Burners are divided into industrial burners, burners, civil burners, and special burners according to their types and application areas. Most of them are made of corrosion-resistant and high-temperature resistant materials such as stainless steel or titanium. Existing kiln burners generally spray fuel into the combustion chamber through a nozzle, and the heat generated by the combustion of the fuel increases the temperature in the kiln.

[0003] The existing referenceable Chinese utility model patent with announcement number: CN214370164U discloses a kiln burner, which belongs to the field of glass kiln technology. In this kiln burner, a natural gas pipeline is sleeved inside the spray gun; an oxygen channel is formed between the natural gas pipeline and the inner wall of the spray gun; the fuel inlet includes: a natural gas inlet and an oxygen inlet; the natural gas inlet is arranged at one end of the natural gas pipeline and connected to the natural gas pipeline; the oxygen inlet is arranged at one end of the oxygen channel and connected to the oxygen pipeline; the fuel outlet includes: a natural gas outlet and an oxygen outlet; the natural gas outlet is arranged at one end of the natural gas pipeline away from the natural gas inlet; the oxygen outlet is arranged at one end of the oxygen channel away from the oxygen inlet. The utility model provides a kiln burner, which makes the flame of the small flow kiln burner strong in rigidity and improves the stability of the spray gun.

[0004] Existing burners generally pass oxygen or air into the combustion chamber to facilitate the complete combustion of fuel. However, since the existing burners inject fuel through a nozzle, the fuel flow rate is relatively fast, which may cause the fuel to not be fully mixed with oxygen, thereby causing incomplete combustion of the fuel and producing excessive carbon monoxide. In addition, the overall volume of the flame of the existing burner is relatively slender, which may easily cause a certain area of ​​the object to be fired in the kiln to overheat, thereby affecting the firing effect. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a kiln energy-saving and emission-reduction burner, which has the advantages of reducing carbon monoxide emissions and increasing flame volume, thereby solving the above-mentioned technical problems.

[0007] (II) Technical solution

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A kiln energy-saving and emission-reduction burner comprises: a mixing tube, a connecting tube is fixedly installed at the front end of the mixing tube, and a protective tube is fixedly installed at the front end of the connecting tube, a connecting frame is fixedly installed on the left side of the mixing tube, a mixing air pump is inserted and installed in the center of the connecting frame, a guide tube is fixedly installed at the air outlet of the mixing air pump, a receiving tube is fixedly installed at the rear end of the mixing tube, a gas pipe is inserted and installed at the rear end of the receiving tube, a delivery air pump is fixedly installed at the rear end of the gas pipe, a transfer tube is inserted and installed at the top end of the receiving tube, and an atomizing nozzle is fixedly installed at the lower end of the transfer tube, a fuel pump is fixedly installed at the top end of the transfer tube, a support rod is inserted and installed on the left side of the fuel pump, and a metal mesh is fixedly installed at the front end of the receiving tube; the atomizing nozzle can atomize fuel.

[0010] As a preferred technical solution of the utility model, the front side of the connecting pipe is annularly distributed with cylindrical opening structures that penetrate the connecting pipe transversely at equal angles based on the center of the connecting pipe, and the center of the connecting pipe is also provided with a cylindrical opening structure that penetrates the connecting pipe; the connecting pipe can increase the range of fuel spraying.

[0011] As an optimal technical solution of the utility model, the duct is installed at the lower left side and the upper right side of the mixing tube in a mirror-symmetrical manner with the center of the mixing tube as a reference, and the bottom surface of the inner wall of the mixing tube on the left side of the mixing tube and the top surface of the inner wall of the mixing tube on the right side of the mixing tube are tangent to the inner wall of the mixing tube; the duct can facilitate the airflow to form a vortex in the mixing tube.

[0012] As a preferred technical solution of the utility model, the ends of the left and right side conduits of the mixing tube are connected to a mixing air pump, and the mixing air pump is fixedly connected to the mixing tube through a connecting frame; the mixing air pump can transport air in the mixing tube.

[0013] As a preferred technical solution of the utility model, the diameter of the terminal opening of the receiving tube is smaller than the diameter of the front opening, and the delivery air pump is connected to the receiving tube through an air delivery pipe; the air delivery pipe can facilitate the connection between the delivery air pump and the receiving tube.

[0014] As a preferred technical solution of the utility model, the transfer tube vertically penetrates the receiving tube, and the fuel pump is connected with the receiving tube through the transfer tube; the transfer tube can facilitate the communication between the fuel pump and the receiving tube.

[0015] As a preferred technical solution of the utility model, the top end of the support rod is an annular structure, the fuel pump is fixedly connected with the supporting tube through the support rod, and a flange structure is provided at the left end of the fuel pump; the flange structure at the left end of the fuel pump can facilitate the connection between the fuel pump and the fuel storage tank.

[0016] Compared with the prior art, the utility model provides a kiln energy-saving and emission-reducing burner, which has the following beneficial effects:

[0017] 1. The utility model is provided with an atomizing nozzle. When the fuel pump delivers the fuel through the atomizing nozzle, the fuel will be atomized by the atomizing nozzle and enter the interior of the mixing tube in an atomized state driven by the gas blown out by the delivery air pump. Due to the provision of the conduit, the air delivered into the mixing tube by the mixing air pump will form a vortex inside the mixing tube under the guidance of the conduit and the inner wall of the mixing tube, so that the air and the atomized fuel are fully mixed and finally sprayed out from the connecting pipe, so that the atomized fuel can absorb sufficient oxygen during combustion, so as to avoid the formation of carbon monoxide due to incomplete combustion of the fuel due to insufficient oxygen, thereby affecting the carbon emission of the burner.

[0018] 2. The utility model arranges a connecting pipe and an opening structure distributed on the connecting pipe so that the inner cavity volume of the connecting pipe is smaller than the inner cavity volume of the mixing tube. When the fuel passes through the connecting pipe, it enters each opening structure of the connecting pipe, so that the fuel can pass through the connecting pipe at a higher flow rate to increase the distance of the fuel spraying. The opening structure of the connecting pipe can guide the fuel to flow out from each opening structure of the connecting pipe, which can increase the overall volume of the fuel after spraying, so as to form a larger columnar flame. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the connection structure between the mixed air pump and the mixing tank of the utility model;

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the mixing tank of the utility model;

[0022] Figure 4 It is a schematic diagram of the cross-sectional structure of the receiving pipe of the utility model.

[0023] Among them: 1. mixing tube; 11. connecting tube; 12. protective tube; 13. connecting frame; 14. mixing air pump; 15. conduit; 2. receiving tube; 21. air pipe; 22. air delivery pump; 23. transfer tube; 24. atomizing nozzle; 25. fuel pump; 26. support rod; 27. metal mesh. DETAILED DESCRIPTION

[0024] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0025] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] See also Figure 1 — Figure 4 In this embodiment, a kiln energy-saving and emission-reduction burner includes: a mixing tube 1, a connecting tube 11 is fixedly installed at the front end of the mixing tube 1, and a protective tube 12 is fixedly installed at the front end of the connecting tube 11, a connecting frame 13 is fixedly installed on the left side of the mixing tube 1, a mixing air pump 14 is inserted and installed at the center of the connecting frame 13, and a conduit 15 is fixedly installed at the outlet of the mixing air pump 14.

[0028] The front side of the connecting tube 11 is provided with cylindrical opening structures which penetrate the connecting tube 11 transversely in an annular manner at equal angles with the center of the connecting tube 11 as a reference, and the center of the connecting tube 11 is also provided with a cylindrical opening structure which penetrates the connecting tube 11.

[0029] The conduit 15 is installed at the lower left side and the upper right side of the mixing tube 1 in a mirror-symmetrical manner with the center of the mixing tube 1 as the reference. The bottom surface of the inner wall of the left mixing tube 1 and the top surface of the inner wall of the right mixing tube 1 are both tangent to the inner wall of the mixing tube 1.

[0030] The ends of the guide tubes 15 on the left and right sides of the mixing tube 1 are connected to a mixing air pump 14 , and the mixing air pump 14 is fixedly connected to the mixing tube 1 via a connecting frame 13 .

[0031] Specifically, the mixing tube 1 can mix the fuel with the air in the mixing tube 1, the connecting tube 11 can increase the volume of the fuel sprayed, the protective tube 12 can guide the flame direction, the connecting frame 13 can form a fixed connection between the mixing tube 1 and the mixing air pump 14, and the conduit 15 can form a vortex inside the mixing tube 1 under the guidance of the conduit 15 and the inner wall of the mixing tube 1, so as to facilitate the mixing of the fuel and the air.

[0032] A receiving tube 2 is fixedly installed at the rear end of the mixing tube 1, an air supply pipe 21 is inserted into the rear end of the receiving tube 2, an air delivery pump 22 is fixedly installed at the rear end of the air supply pipe 21, a transfer tube 23 is inserted into the top end of the receiving tube 2, and an atomizing nozzle 24 is fixedly installed at the lower end of the transfer tube 23, a fuel pump 25 is fixedly installed at the top end of the transfer tube 23, a support rod 26 is inserted into the left side of the fuel pump 25, and a metal mesh 27 is fixedly installed at the front end of the receiving tube 2.

[0033] The diameter of the opening at the end of the receiving tube 2 is smaller than the diameter of the opening at the front end, and the delivery air pump 22 is connected to the receiving tube 2 through the air delivery pipe 21 .

[0034] The transfer tube 23 vertically penetrates the receiving tube 2 , and the fuel pump 25 is connected to the receiving tube 2 through the transfer tube 23 .

[0035] The top end of the support rod 26 is an annular structure, the fuel pump 25 is fixedly connected to the receiving pipe 2 through the support rod 26, and a flange structure is provided at the left end of the fuel pump 25.

[0036] Specifically, the receiving tube 2 can guide the direction of fuel movement, the air pipe 21 can connect the delivery air pump 22 with the receiving tube 2, the gas blown out by the delivery air pump 22 can make the fuel in the receiving tube 2 move forward, the transfer tube 23 can connect the fuel pump 25 with the receiving tube 2, the atomizing nozzle 24 can atomize the fuel to facilitate mixing of the fuel and air, the fuel pump 25 can deliver fuel to the transfer tube 23, the support rod 26 can support the fuel pump 25, and the metal mesh 27 can reduce the initial velocity of the atomized fuel entering the mixing tube 1.

[0037] When in use, firstly, the fuel pump 25 needs to be connected to the fuel storage tank through the flange structure at the left end of the fuel pump 25, and then the protective pipe 12 needs to be extended into the interior of the kiln, and then the mixing air pump 14, the delivery air pump 22 and the fuel pump 25 are started. When the fuel pump 25 is turned on, it can deliver fuel to the transfer tube 23. When the fuel passes through the atomizing nozzle 24 at the lower end of the transfer tube 23, the fuel will be atomized. Through the setting of the delivery air pump 22, the atomized fuel will move forward to the mixing tube 1. The atomized fuel will reduce its moving speed when passing through the metal mesh 27. When the mixing air pump 14 is turned on, it will deliver air to the mixing tube 1 through the conduit 15. The air delivered to the mixing tube 1 by the mixing air pump 14 will be mixed under the guidance of the conduit 15 and the inner wall of the mixing tube 1. A vortex is formed inside the tube 1, and the vortex will drive the atomized fuel to rotate inside the mixing tube 1, so that the air and the atomized fuel are fully mixed. Finally, the atomized fuel will be driven by the airflow formed by the delivery air pump 22 and ejected from the connecting tube 11. Due to the open hole structure distributed on the connecting tube 11, the inner cavity volume of the connecting tube 11 is smaller than the inner cavity volume of the mixing tube 1. When the fuel passes through the connecting tube 11, it will enter each open hole structure of the connecting tube 11, so that the fuel can pass through the connecting tube 11 at a higher flow rate to increase the distance of the fuel ejection. In addition, the open hole structure of the connecting tube 11 will guide the fuel to be ejected from each open hole structure of the connecting tube 11, which can increase the overall volume of the fuel after ejection, so as to form a larger columnar flame.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A kiln energy-saving and emission-reduction burner, comprising: A mixing tube (1), wherein a connecting tube (11) is fixedly installed at the front end of the mixing tube (1), and a protective tube (12) is fixedly installed at the front end of the connecting tube (11), and a connecting frame (13) is fixedly installed on the left side of the mixing tube (1), characterized in that a mixing air pump (14) is inserted and installed in the center of the connecting frame (13), and a guide tube (15) is fixedly installed at the air outlet of the mixing air pump (14), and a receiving tube (2) is fixedly installed at the rear end of the mixing tube (1), and the receiving tube (2 ) is inserted through the rear end of the receiving tube (2), an air delivery pipe (21) is fixedly installed on the rear end of the air delivery pipe (21), a transfer pipe (23) is inserted through the top end of the receiving tube (2), an atomizing nozzle (24) is fixedly installed on the lower end of the transfer pipe (23), a fuel pump (25) is fixedly installed on the top end of the transfer pipe (23), a support rod (26) is inserted through the left side of the fuel pump (25), and a metal mesh (27) is fixedly installed on the front end of the receiving tube (2).

2. The kiln energy-saving and emission-reduction burner according to claim 1, characterized in that: The front side of the connecting tube (11) is provided with cylindrical opening structures which are distributed in an annular manner at equal angles with the center of the connecting tube (11) as a reference and which penetrate the connecting tube (11) transversely, and the center of the connecting tube (11) is also provided with a cylindrical opening structure which penetrates the connecting tube (11).

3. The kiln energy-saving and emission-reduction burner according to claim 1, characterized in that: The conduit (15) is installed at the lower left side and the upper right side of the mixing tube (1) in a mirror-symmetrical manner with the center of the mixing tube (1) as a reference, and the bottom surface of the inner wall of the left mixing tube (1) and the top surface of the inner wall of the right mixing tube (1) are both tangent to the inner wall of the mixing tube (1).

4. The kiln energy-saving and emission-reduction burner according to claim 1, characterized in that: The ends of the guide tubes (15) on the left and right sides of the mixing tube (1) are connected to a mixing air pump (14), and the mixing air pump (14) is fixedly connected to the mixing tube (1) via a connecting frame (13).

5. The kiln energy-saving and emission-reduction burner according to claim 1, characterized in that: The diameter of the opening at the end of the receiving tube (2) is smaller than the diameter of the opening at the front end, and the delivery air pump (22) is connected to the receiving tube (2) via the air delivery pipe (21).

6. The kiln energy-saving and emission-reduction burner according to claim 1, characterized in that: The transfer tube (23) vertically penetrates the receiving tube (2), and the fuel pump (25) is connected to the receiving tube (2) through the transfer tube (23).

7. The kiln energy-saving and emission-reduction burner according to claim 1, characterized in that: The top end of the support rod (26) is an annular structure, the fuel pump (25) is fixedly connected to the receiving pipe (2) through the support rod (26), and a flange structure is provided at the left end of the fuel pump (25).

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