CN218494980U

CN218494980U - Novel combustor for ring type roasting furnace

Info

Publication number: CN218494980U
Application number: CN202222487929.4U
Authority: CN
Inventors: 宋亚黎; 陈帅
Original assignee: Zhengzhou Wuzhou Huanrui Electronic Technology Co ltd
Current assignee: Zhengzhou Wuzhou Huanrui Electronic Technology Co ltd
Priority date: 2022-09-20
Filing date: 2022-09-20
Publication date: 2023-02-17
Anticipated expiration: 2032-09-20

Abstract

The utility model provides a novel combustor for ring type bakes burning furnace belongs to the technical field of combustor, include the air inlet joint who links to each other with external air feeder, the inside of air inlet joint is provided with the inner core that reduces the natural gas velocity of flow, and air inlet joint fixed connection has the gas pipe of hollow structure, the inner core stretches into in the gas pipe, the lower extreme outside of inner core is provided with the outer tube that is used for forming the mixing chamber that stretches into in the furnace body, be provided with the flue gas hole that is used for flue gas entering in the furnace body on the outer tube, the inner core is including setting up at the inside pole core of gas pipe and outer tube, the upper portion of pole core is provided with the air inlet plate that is used for the dispersed natural gas, the lower part of pole core is provided with the nozzle that is used for slowing down natural gas velocity of flow, and the advantage is for energy saving and emission reduction, the temperature that reduces local combustion, reduces nitrogen oxide's emission moreover.

Description

Novel combustor for ring type roasting furnace

Technical Field

The utility model relates to a technical field of combustor, concretely relates to a novel combustor for ring type roaster furnace.

Background

The carbon material is a general name of substances and solid materials mainly containing carbon elements, the carbon material is widely applied to industries such as metallurgy, chemical engineering, electronics, electrical appliances, machinery and the like, and nuclear energy and aerospace industries at present, the carbon material becomes an indispensable structural material and functional material in modern industries, the requirements of the roasting process of a carbon green product on heating temperature, temperature gradient, temperature control time and the like are very strict, and the roasting process can be generally divided into four stages: namely a low-temperature preheating stage, a binder coking stage, a high-temperature sintering stage and a cooling stage, a natural gas burner used for combustion heating of the ring type roasting furnace is an important part for heating carbon raw products, and the service performance, the working condition, the combustion efficiency and other working parameters of the burner and the matching degree of the burner and the ring type roasting furnace are very important.

In a ring type roasting furnace, flue gas in a furnace body contains trace oxygen, the emission of nitrogen oxides needs to be reduced in the current environment-friendly situation, the requirement of nitrogen reduction in the prior art is not good, and the patent number of CN202122030234.9 is retrieved, and the patent name of the invention is a disclosed material of a low-nitrogen energy-saving natural gas burner heated by a roasting furnace in the production of carbon materials.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a novel combustor for ring type roasting furnace can not only energy saving and emission reduction, reduces nitrogen oxide's emission moreover.

In order to solve the technical problem, the utility model provides a novel combustor for ring type roasting furnace, include the air inlet joint who links to each other with external air feeder, the inside of air inlet joint is provided with the inner core that reduces the natural gas velocity of flow, and air inlet joint fixed connection has hollow structure's gas pipe, the inner core stretches into in the gas pipe, the lower extreme outside of inner core is provided with the outer tube that is used for forming the mixing chamber that stretches into in the furnace body, be provided with the exhanst gas hole that is used for the interior flue gas of furnace body to get into on the outer tube.

Further, the inner core comprises a rod core arranged inside the gas pipe and the outer sleeve, the upper part of the rod core is provided with an air inlet plate for dispersing natural gas, and the lower part of the rod core is provided with a nozzle for slowing down the flow speed of the natural gas.

Furthermore, the air inlet plate is arranged inside the air inlet joint, and a plurality of air inlets are formed in the air inlet plate and used for dispersing natural gas into the gas pipe.

Furthermore, the lateral surface of nozzle is provided with a plurality of, the recess is helical structure, and is parallel to each other, twines on the lateral surface of nozzle for reduce the velocity of flow of natural gas, and the recess is logical groove structure, and the terminal surface is the export of natural gas down.

Furthermore, the flue gas holes are formed below the nozzle, and the number of the flue gas holes is a plurality of the flue gas holes, so that the flue gas enters the outer sleeve.

The utility model discloses an above-mentioned technical scheme's beneficial effect as follows:

1. the external air feeder of air inlet joint, the natural gas is provided, air inlet joint still is connected with the gas pipe, the gas pipe is used for the natural gas circulation, inside at air inlet joint is provided with the inner core, the inner core stretches into in the gas pipe, and leave the space between inner core and the gas pipe, be used for the gas to pass through, the outer tube has been set up in the lower extreme outside of inner core, also leave the space between the middle part of outer tube and inner core, a flue gas hole has been set up on the outer tube for the gas passes through, a certain amount of oxygen has been contained in the flue gas in the furnace body, oxygen and natural gas mix the postcombustion, make the oxygen consumption in the furnace body fall, reduce nitrogen oxide's production.

2. The inner core comprises a rod core, the upper part of the rod core is provided with an air inlet plate for dispersing the entering natural gas to realize uniform entering into the gas pipe, and the lower part of the rod core is provided with a nozzle for reducing the flow rate of the natural gas.

3. The air inlet plate and the rod core can be integrally formed and also can be fixedly connected, the air inlet plate and the rod core are preferably vertically arranged, and the air inlet plate is provided with a plurality of air inlets for dispersing natural gas.

4. The flue gas hole sets up in the below of nozzle, contains a certain amount of oxygen in the flue gas that enters into the outer tube, forms the mist with between the natural gas to the burning, be the mixing chamber in the outer tube this moment, reduce the velocity of flow of natural gas also in order to can with a small amount of oxygen between abundant burning, the too fast case of velocity of flow, the natural gas takes place incomplete combustion.

Drawings

FIG. 1 is a schematic view of the internal structure of the present invention;

FIG. 2 is a schematic structural view of the core of FIG. 1;

FIG. 3 is a top view of FIG. 2;

FIG. 4 is a schematic structural view of the nozzle of FIG. 2;

FIG. 5 is a top view of FIG. 4;

FIG. 6 is a schematic structural view of the outer sleeve of FIG. 1;

in the figure: 1. an air inlet joint; 2. a gas pipe; 3. an outer sleeve; 4. an inner core; 5. a flue gas hole; 6. a mounting frame; 41. an air intake plate; 42. a rod core; 43. a nozzle; 44. a groove; 45. and (4) air inlet holes.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 6 of the embodiments of the present invention. It is to be understood that the embodiments described are some, not all embodiments of the invention. All other embodiments, which can be derived from the description of the embodiments of the present invention by a person skilled in the art, are within the scope of the present invention.

As shown in fig. 1-6:

example 1

The utility model provides a novel combustor for ring type bakes burning furnace over a slow fire, includes the air inlet joint 1 that links to each other with external air feeder, the inside of air inlet joint 1 is provided with inner core 4 that reduces the natural gas velocity of flow, and air inlet joint 1 fixed connection has the gas pipe 2 of hollow structure, inner core 4 stretches into in the gas pipe 2, the lower extreme outside of inner core 4 is provided with the outer tube 3 that is used for forming the mixing chamber that stretches into in the furnace body, be provided with the flue gas hole 5 that is used for the interior flue gas of furnace body to get into on the outer tube 3.

In this embodiment, the external air feeder of air inlet joint 1, provide the natural gas, air inlet joint 1 still is connected with gas pipe 2, gas pipe 2 is used for the natural gas circulation, inside at air inlet joint 1 is provided with inner core 4, inner core 4 stretches into in the gas pipe 2, and leave the space between inner core 4 and the gas pipe 2, be used for the gas to pass through, outer tube 3 has been set up in the lower extreme outside of inner core 4, also leave the space between the middle part of outer tube 3 and inner core 4, be used for the gas to pass through, flue gas hole 5 has been set up on outer tube 3, a flue gas for in the furnace body gets into, contain a certain amount of oxygen in the flue gas in the furnace body, oxygen and the mixed after-combustion of natural gas, make the oxygen consumption in the furnace body, reduce nitrogen oxide's production.

Example 2

The inner core 4 comprises a rod core 42 arranged inside the gas pipe 2 and the outer sleeve 3, the upper part of the rod core 42 is provided with an air inlet plate 41 for dispersing natural gas, and the lower part of the rod core 42 is provided with a nozzle 43 for slowing down the flow rate of the natural gas.

Unlike the above embodiment, in this embodiment, the inner core 4 includes a rod core 42, an air inlet plate 41 is disposed at an upper portion of the rod core 42 for dispersing the incoming natural gas to achieve uniform entry into the gas pipe 2, and a nozzle 43 is disposed at a lower portion of the rod core 42 for reducing the flow rate of the natural gas.

Example 3

The air inlet plate 41 is arranged inside the air inlet joint 1, and a plurality of air inlet holes 45 are formed in the air inlet plate 41 and used for dispersing natural gas into the gas pipe 2.

Different from the above embodiments, in the present embodiment, the air inlet plate 41 and the rod core 42 may be integrally formed or fixedly connected, preferably, the air inlet plate 41 and the rod core 42 are vertically disposed, and the air inlet plate 41 is provided with a plurality of air inlets 45, preferably four air inlets, for dispersing natural gas.

Example 4

The lateral surface of nozzle 43 is provided with a plurality of, recess 44 is helical structure, and is parallel to each other, twines on the lateral surface of nozzle 43 for reduce the velocity of flow of natural gas, and recess 44 is logical groove structure, and the lower terminal surface is the export of natural gas.

Different from the above embodiments, in the present embodiment, the outer side surface of the nozzle 43 is provided with the groove 44, the groove 44 is of an upper and lower through groove structure for circulating the natural gas, the groove 44 is of a spiral structure for reducing the flow velocity of the natural gas, and the lower end is provided with a plurality of openings, so that the flame is dispersed, and the local combustion temperature is reduced.

Example 5

The flue gas holes 5 are arranged below the nozzles 43, and the number of the flue gas holes 5 is a plurality, and the flue gas holes are used for allowing flue gas to enter the outer sleeve 3.

Unlike the above-described embodiment, in the present embodiment, the flue gas hole 5 is provided below the nozzle 43, and the flue gas entering the outer jacket 3 contains a certain amount of oxygen, and forms a mixed gas with the natural gas, and the mixed gas is combusted, and at this time, the inner side of the outer jacket 3 is a mixing chamber, and the flow rate of the natural gas is reduced so that the mixed gas can be sufficiently combusted with a small amount of oxygen, and if the flow rate is too high, the natural gas is incompletely combusted.

The utility model discloses a working method (or theory of operation):

this technique is in the during operation, through the admission joint 1, link to each other gas pipe 2 with external air feeder, gas pipe 2 and outer tube 3 between have set up mounting bracket 6, be used for installing the combustor, install in the furnace body in outer tube 3 one side, combustion tube one side sets up outside the furnace body, mounting bracket 6 is fixed on the furnace body, the natural gas that air feeder provided, the downward motion after 41 back of air inlet plate is passed through once, then through the helical structure's in the nozzle 43 outside recess 44, reach the combustion chamber, mix the burning with the oxygen in the flue gas.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A novel combustor for a ring type roasting furnace comprises an air inlet joint (1) connected with an external air supply device, and is characterized in that: the inside of air inlet joint (1) is provided with inner core (4) that reduce the natural gas velocity of flow, and air inlet joint (1) fixed connection has gas pipe (2) of hollow structure, inner core (4) stretch into in gas pipe (2), the lower extreme outside of inner core (4) is provided with outer tube (3) that are used for forming the mixing chamber that stretch into in the furnace body, be provided with flue gas hole (5) that are used for the interior flue gas of furnace body to get into on outer tube (3).

2. A new burner for a ring furnace according to claim 1, wherein: the inner core (4) comprises a rod core (42) arranged inside the gas pipe (2) and the outer sleeve (3), the upper part of the rod core (42) is provided with an air inlet plate (41) used for dispersing natural gas, and the lower part of the rod core (42) is provided with a nozzle (43) used for slowing down the flow velocity of the natural gas.

3. A new burner for a ring furnace according to claim 2, wherein: the gas inlet plate (41) is arranged inside the gas inlet joint (1), and a plurality of gas inlet holes (45) are formed in the gas inlet plate (41) and used for dispersing natural gas into the gas pipe (2).

4. A new burner for a ring furnace according to claim 3, wherein: the lateral surface of nozzle (43) is provided with a plurality of recesses (44), recess (44) are helical structure, and are parallel to each other, twine on the lateral surface of nozzle (43) for reduce the velocity of flow of natural gas, and recess (44) are logical groove structure, and the terminal surface is the export of natural gas down.

5. A new burner for a ring furnace according to claim 4, wherein: the flue gas holes (5) are formed below the nozzle (43), and the number of the flue gas holes (5) is a plurality of and used for enabling flue gas to enter the outer sleeve (3).