CN217329766U

CN217329766U - Fire burning furnace distributing pipe and connect brick type structure

Info

Publication number: CN217329766U
Application number: CN202220950990.5U
Authority: CN
Inventors: 李超; 盛涛; 向荣体
Original assignee: Yixing Pengye Refractory Products Co ltd
Current assignee: Yixing Pengye Refractory Products Co ltd
Priority date: 2022-04-22
Filing date: 2022-04-22
Publication date: 2022-08-30
Anticipated expiration: 2032-04-22

Abstract

The utility model provides a brick-shaped connecting structure for a distributing pipe of a combustion furnace, which comprises a furnace body and a distributing pipe annularly arranged on the furnace body, wherein the distributing pipe is provided with at least one distributing pipe outlet; the furnace body is arranged on one section of inner wall covered by the distribution pipe and is provided with a multilayer structure which is respectively an inner side brick type, a middle part brick type and an outer brick type from inside to inside, and a plurality of rows of annular air return pipes extending from the inner cavity of the furnace body to the distribution pipe are obliquely inserted on the inner side brick type, the middle part brick type and the outer brick type. The utility model overcomes prior art's is not enough, reasonable in design, and compact structure through the multilayer brick type structure of prefabricating and matching each other with the muffler appearance, has improved the linkage effect of muffler and brick type, has reduced joint gap simultaneously, cooperates the multilayer brick type structure and the radiation shield of uneven seam, has improved the heat preservation effect, can also improve process gas and combustion gas's mixed effect through angle modulation moreover, has very strong practicality.

Description

Fire burning furnace distributing pipe and connect brick type structure

Technical Field

The utility model relates to a fire burning furnace equipment technical field, concretely relates to fire burning furnace distributing pipe connecting brick type structure.

Background

There are three main ways of gas combustion: non-premixed combustion, and partially premixed combustion. The combustion of a combustor matched with a reheating furnace of the existing sulfur recovery device belongs to a premixed combustion mode, a process gas distribution pipe is required to be arranged on a combustion furnace, and when the combustion furnace is used, fuel gas is introduced through a fuel gas inlet and is mixed with air introduced from an air inlet to combust, so that high-temperature flue gas is generated and enters a hearth. The process gas is introduced into the reheating furnace chamber through the process gas inlet and the distribution pipe, and is mixed with high-temperature flue gas generated by the front-end combustor, so that the purpose of reheating the process gas is achieved.

However, the existing connection structure of the process gas distribution pipe has the following problems that the connection of the distribution pipe and the return gas pipeline of the combustion furnace is formed after the combustion furnace is molded, so that the tight connection between the return gas pipe and the furnace body has a problem, on one hand, the overflow of hot gas is easily caused, the temperature of the outer wall of the furnace body of the combustion furnace is too high, the waste is caused, and the thermal pollution is also caused, and on the other hand, the overall stability of the combustion furnace is also influenced.

To this end, we propose a furnace distribution pipe connection brick type structure.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve or alleviate the problem that exists among the prior art at least.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

the combustion furnace distribution pipe is connected with a brick-shaped structure and comprises a furnace body and a distribution pipe annularly arranged on the furnace body, and at least one distribution pipe outlet is formed in the distribution pipe;

the furnace body is located and is provided with the multilayer structure who is inboard brick type, middle part brick type and outside brick type respectively to the position on one section inner wall that the distributing pipe covers, and has inserted the air return pipe that the multirow annular extends to in the distributing pipe from the furnace body inner chamber to one side on inboard brick type, middle part brick type and the outside brick type, and the furnace body import direction is the acute angle setting with the contained angle of the incline direction of air return pipe.

Optionally, the distribution pipe is interconnected with the furnace body by a plurality of connecting ribs.

Optionally, the inner brick type, the middle brick type and the outer brick type are all preset with arc surfaces corresponding to the air return pipe.

Optionally, the two sides of the inner brick type, the middle brick type and the outer brick type are provided with protrusions and depressions matched with each other.

Optionally, a heat insulation sleeve is sleeved on a section of outer wall of the air return pipe close to the distribution pipe, and the heat insulation sleeve is made of an aluminum silicate fiber felt.

Optionally, an annular groove corresponding to the heat insulation sleeve is arranged on the middle brick.

Optionally, the number of the rows of the air return pipes is at least one.

Optionally, the inner brick type, the middle brick type and the outer brick type are connected in a layered mode in a non-flush mode.

The embodiment of the utility model provides a fire burning furnace distributing pipe and connect brick type structure. The method has the following beneficial effects: through the multilayer brick type structure of prefabricating and muffler appearance mutual matching, improved the linkage effect of muffler and brick type, reduced the joint gap simultaneously, can also improve process gas and combustion gas's mixed effect through angle modulation moreover, have very strong practicality.

Drawings

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

FIG. 2 is an enlarged view of the structure B in FIG. 1;

FIG. 3 is a schematic sectional view A-A of FIG. 1;

FIG. 4 is an enlarged schematic view of the inner brick structure of the present invention;

FIG. 5 is an enlarged schematic view of the middle brick structure of the present invention;

fig. 6 is an enlarged schematic view of the external brick structure of the present invention.

In the figure: furnace body 1, inboard brick type 1.1, middle part brick type 1.2, outside brick type 1.3, distribution pipe 2, distribution pipe export 2.1, splice bar 2.2, muffler 3, radiation shield 3.1.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to the attached drawings 1-6, the distribution pipe of the combustion furnace is of a brick-shaped structure and comprises a furnace body 1 and a distribution pipe 2 annularly arranged on the furnace body 1, the distribution pipe 2 is mutually connected with the furnace body 1 through a plurality of connecting ribs 2.2, the connecting effect of the furnace body 1 and the distribution pipe 2 is improved, and at least one distribution pipe outlet 2.1 is formed in the distribution pipe 2 and used for introducing process gas;

the furnace body 1 is provided with a multilayer structure which is respectively an inner brick type 1.1, a middle brick type 1.2 and an outer brick type 1.3 from inside to inside on a section of inner wall covered by the distribution pipe 2, the heat preservation effect can be improved through the multilayer structure, a plurality of rows of annular air return pipes 3 extending from the inner cavity of the furnace body 1 to the distribution pipe 2 are obliquely inserted into the inner brick type 1.1, the middle brick type 1.2 and the outer brick type 1.3, the rows of the air return pipes 3 are at least one row, the efficiency of introducing the process gas can be improved, and an included angle between the inlet direction of the furnace body 1 and the inclination direction of the air return pipes 3 is arranged in an acute angle manner, so that the process gas can be simultaneously introduced and cut into hot air, and the mixing effect is accelerated;

the heat insulation sleeve 3.1 is sleeved on one section of outer wall of the air return pipe 3 close to the distributing pipe 2, the heat insulation sleeve 3.1 is made of aluminum silicate fiber felt, and through the arrangement of the heat insulation sleeve 3.1, hot air can be prevented from overflowing along the gap between the air return pipe 3 and the brick type, so that the temperature of the outer surface of the furnace body 1 is too high, the problem of thermal pollution is caused, a ring groove corresponding to the heat insulation sleeve 3.1 is arranged on the middle brick type 1.2, and the connected gap is reduced.

The inner brick type 1.1, the middle brick type 1.2 and the outer brick type 1.3 are connected in a non-flush joint mode in a layered mode, and hot air in the furnace body 1 can be prevented from overflowing from a connecting joint to cause thermal pollution.

As shown in fig. 4-6, the arc-shaped surfaces corresponding to the air return pipes 3 are preset on the inner brick type 1.1, the middle brick type 1.2 and the outer brick type 1.3, the air return pipes 3 can be better coated through the preset arc surfaces, and meanwhile, the drilling assembly can be avoided during construction, so that the working efficiency is greatly improved, and the overall stability of the furnace body 1 can be improved.

As shown in fig. 4-6, the two sides of the inner brick type 1.1, the middle brick type 1.2 and the outer brick type 1.3 are provided with mutually matched bulges and depressions, so that the connecting effect of the same brick type is improved, and the stability of the furnace body 1 is further improved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The combustion furnace distribution pipe is connected with a brick-shaped structure and comprises a furnace body and a distribution pipe annularly arranged on the furnace body, and at least one distribution pipe outlet is formed in the distribution pipe;

the method is characterized in that: the furnace body is provided with a multilayer structure which is respectively an inner brick type, a middle brick type and an outer brick type from inside to inside on a section of inner wall covered by the distribution pipe, a plurality of rows of annular air return pipes extending from the inner cavity of the furnace body to the distribution pipe are obliquely inserted on the inner brick type, the middle brick type and the outer brick type, and an included angle between the inlet direction of the furnace body and the inclined direction of the air return pipes is arranged in an acute angle;

arc surfaces corresponding to the air return pipes are preset on the inner brick type, the middle brick type and the outer brick type.

2. A furnace distribution duct connector brick construction as claimed in claim 1 wherein: the distribution pipe is connected with the furnace body through a plurality of connecting ribs.

3. The furnace distribution duct connector brick construction of claim 1 further comprising: the both sides of inboard brick type, middle part brick type and outside brick type all are provided with the arch and the sunken of mutual matching.

4. A furnace distribution duct connector brick construction as claimed in claim 1 wherein: and a section of outer wall of the air return pipe, which is close to the distribution pipe, is sleeved with a heat insulation sleeve, and the heat insulation sleeve is made of an aluminum silicate fiber felt.

5. The furnace distribution duct connector brick construction of claim 4, wherein: and the middle brick is provided with an annular groove corresponding to the heat insulation sleeve.

6. A furnace distribution duct connector brick construction as claimed in claim 1 wherein: the number of the rows of the air return pipes is at least one.

7. A furnace distribution duct connector brick construction as claimed in claim 1 wherein: the inner brick type, the middle brick type and the outer brick type are connected in a non-flush joint mode in a layered mode.