阅读说明：本技术 一种回转窑炉的高温区域调节装置及方法 (High-temperature area adjusting device and method for rotary kiln ) 是由 沈忠东 夏远清 于 2020-05-08 设计创作，主要内容包括：一种回转窑炉的高温区域调节装置及方法,它涉及回转窑燃烧设备技术领域。它包括：氧气仓；装配于燃烧器一侧的安装架；装配于所述安装架上且连通于氧气仓的、用于对炉膛内补充氧气的若干喷氧组件；以及,装配于所述喷氧组件一端的、用于调节所述喷氧组件的喷氧方向的调节组件。采用上述技术方案能够通过调节组件灵活调节喷氧组件的喷氧方向并对喷氧组件进行限位,具有利于炉膛内高温区域调节,确保炉膛内物料受热均匀,减少燃料损耗、提高生产效率的优势。(A high-temperature area adjusting device and method of a rotary kiln relate to the technical field of rotary kiln combustion equipment. It includes: an oxygen bin; a mounting bracket mounted at one side of the burner; the oxygen spraying components are assembled on the mounting rack, are communicated with the oxygen bin and are used for supplementing oxygen to the hearth; and the adjusting assembly is assembled at one end of the oxygen spraying assembly and is used for adjusting the oxygen spraying direction of the oxygen spraying assembly. Adopt above-mentioned technical scheme can adjust the oxygen spraying direction of spouting the oxygen subassembly and carry on spacingly to spouting the oxygen subassembly through adjusting part is nimble, has and does benefit to the regional regulation of high temperature in the furnace, ensures that the material is heated evenly in the furnace, reduces fuel loss, improves production efficiency's advantage.)

1. A high temperature zone adjustment apparatus for a rotary kiln, comprising: an oxygen bin (1);

a mounting bracket (2) mounted on one side of the burner (20);

a plurality of oxygen spraying components (3) which are assembled on the mounting rack (2), are communicated with the oxygen bin (1) and are used for supplementing oxygen to the hearth; and the number of the first and second groups,

and the adjusting component (4) is assembled at one end of the oxygen spraying component (3) and is used for adjusting the oxygen spraying direction of the oxygen spraying component (3).

2. A high temperature zone regulation device of a rotary kiln according to claim 1, characterized in that the oxygen injection assembly (3) comprises: an oxygen pipe (31) which is assembled on the mounting rack (2) and communicated with the oxygen chamber (1);

a switching tube (32) which is communicated with the oxygen tube (31) and one end of which is a bowl-shaped interface; and the number of the first and second groups,

a nozzle (33) rotatably mounted on one end of the adapter tube (32) and used for supplementing oxygen to the flame-out direction of the burner (20).

3. A high temperature zone adjusting device of a rotary kiln according to claim 2, characterized in that: the adjustment assembly (4) comprises:

a first pull rod (41) movably arranged on the oxygen pipe (31) in a penetrating way;

a second pull rod (42) arranged inside the oxygen introducing pipe (31);

a first connecting member (43) connected to the first tie bar (41) and the second tie bar (42);

a fixing part (44) which is connected with one end of the second pull rod (42), is fixedly assembled with the nozzle (33), and drives the nozzle (33) to adjust downwards or upwards when the second pull rod (42) moves upwards or downwards; and the number of the first and second groups,

a first driving motor (45) which is assembled on the first pull rod (41) and is used for driving the first pull rod (41) to do reciprocating motion along the oxygen introducing pipe (31); and the number of the first and second groups,

and the fixing structure (46) is arranged on the oxygen introducing pipe (31) and is used for limiting the fixing piece (44).

4. A high temperature zone regulation device of a rotary kiln according to claim 3, characterized in that the fixing structure (46) comprises:

a third pull rod (461) movably arranged on the oxygen tube (31);

a fourth pull rod (462) arranged inside the oxygen pipe (31);

a second connecting member (463) connected to the third and fourth tie rods (461, 462);

an abutting piece (464) which is connected with one end of the fourth pull rod (462) and is always abutted against one end of the fixing piece (44) when the fourth pull rod (462) moves upwards or downwards; and the number of the first and second groups,

and the second driving motor (465) is assembled on the third pull rod (461) and is used for driving the third pull rod (461) to do reciprocating motion along the oxygen introducing pipe (31).

5. A high temperature zone regulating device of a rotary kiln according to claim 4, characterized in that a rotating shaft (5) is arranged in the oxygen pipe (31);

the first connecting piece (43) and the second connecting piece (463) are rotatably assembled in the oxygen introducing pipe (31) through the rotating shaft (5).

6. A high temperature zone regulation device of a rotary kiln according to claim 5, characterized in that the mounting frame (2) comprises: a fixing frame (21) arranged on one side of the burner (20);

a plurality of mounting blocks (22) arranged on the fixing frame (21); and the number of the first and second groups,

a fixture block (23) assembled on the oxygen tube (31) and assembled with the mounting block (22);

the fixture block (23) is provided with an installation groove for the installation block (22) to be clamped and embedded;

and the clamping block (23) is provided with a locking bolt for locking the mounting block (22) in the mounting groove.

7. The high-temperature zone adjusting device of the rotary kiln as claimed in claim 6, characterized in that a temperature detecting probe (6) is further provided on the side of the adapter tube (32) close to the nozzle (33).

8. A high temperature zone regulation device of a rotary kiln according to claim 7, characterized in that the front end of the nozzle (33) is made of heat resistant alloy steel and the outer wall is provided with refractory castable (7).

9. A method for the regulation of the high temperature zone of a rotary kiln, characterized in that it is based on a device for the regulation of the high temperature zone of a rotary kiln according to any one of claims 1 to 8, the method comprising:

s1, observing the combustion condition in the hearth and determining a low-temperature (insufficient combustion) area;

s2, controlling the adjusting assembly (4) through the controller, further adjusting the oxygen spraying assembly (3) to face to a low-temperature (insufficient combustion) area, and simultaneously fixing the angle of the nozzle (33) through the fixing structure (46);

s3, supplementing oxygen into the hearth from the nozzle (33);

and S4, monitoring the temperature of one end of the nozzle (33) in real time by the temperature detection probe (6), and controlling the oxygen cabin (1) to close the oxygen supply channel by the controller when the temperature is overhigh.

Technical Field

The invention relates to the technical field of rotary kiln combustion equipment, in particular to a high-temperature area adjusting device and method of a rotary kiln.

Background

The rotary kiln is a rotary calcining kiln (commonly called rotary kiln) and belongs to building material equipment. Rotary kilns can be divided into cement kilns, metallurgical chemical kilns and lime kilns according to the different materials to be treated. The cement kiln is mainly used for calcining cement clinker, and the prepared raw meal is ground and calcined into the clinker under the high-temperature action of the rotary kiln. Therefore, the rotary kiln is a main machine in cement production and is commonly called as the heart of a cement factory.

The rotary kiln furnace adopted at present is of an internal combustion inclined type, the length of a hearth is more than eight meters, the width is more than one meter, the height is more than one point and five meters, the hearth space is very large, namely, a thermal field is very large, a coal injection pipe and a burner are usually adopted at one end of a discharge port to provide calcination heat energy in the hearth, but the high-temperature area in the hearth of the traditional rotary kiln furnace cannot be adjusted, so that pulverized coal cannot be completely combusted, low-temperature condensation of materials in the hearth is easy to occur, the discharge is unsmooth, a condensation wall is even formed, the production efficiency is seriously affected, and energy consumption is extremely high.

Therefore, there is an urgent need to improve on the existing problems.

Disclosure of Invention

The first purpose of the present invention is to provide a high temperature area adjusting device of a rotary kiln, which can flexibly adjust the oxygen spraying direction of an oxygen spraying assembly through an adjusting assembly, and has the advantages of facilitating the adjustment of a high temperature area in a hearth and improving the production efficiency, in view of the defects and disadvantages of the prior art.

In order to achieve the purpose, the invention adopts the technical scheme that: a high temperature zone adjustment apparatus for a rotary kiln, comprising: an oxygen bin; a mounting bracket mounted at one side of the burner; the oxygen spraying components are assembled on the mounting rack, are communicated with the oxygen bin and are used for supplementing oxygen to the hearth; and the adjusting assembly is assembled at one end of the oxygen spraying assembly and is used for adjusting the oxygen spraying direction of the oxygen spraying assembly.

In a further aspect of the invention, the oxygen injection assembly comprises: the oxygen introducing pipe is assembled on the mounting rack and communicated with the oxygen bin; the adapter tube is communicated with the oxygen introducing tube, and one end of the adapter tube is a bowl-shaped interface; and the nozzle is rotatably assembled at one end of the adapter tube and used for supplementing oxygen to the flame projecting direction of the burner.

In a further aspect of the invention, the adjustment assembly comprises: the first pull rod is movably arranged on the oxygen introducing pipe in a penetrating way; the second pull rod is arranged in the oxygen introducing pipe; a first connecting member connected to the first and second tie rods; the fixing piece is connected to one end of the second pull rod, is fixedly assembled with the nozzle and drives the nozzle to be adjusted downwards or upwards when the second pull rod moves upwards or downwards; the first driving motor is assembled on the first pull rod and used for driving the first pull rod to reciprocate along the oxygen introducing pipe; and the fixing structure is arranged on the oxygen introducing pipe and used for limiting the fixing piece.

In a further arrangement of the present invention, the fixing structure comprises: a third pull rod movably arranged on the oxygen introducing pipe in a penetrating way; the fourth pull rod is arranged in the oxygen introducing pipe; a second link connected to the third and fourth tie rods; the abutting part is connected with one end of the fourth pull rod and is always abutted against one end of the fixing part when the fourth pull rod moves upwards or downwards; and the second driving motor is assembled on the third pull rod and used for driving the third pull rod to reciprocate along the oxygen introducing pipe.

The invention is further characterized in that a rotating shaft is arranged in the oxygen introducing pipe; the first connecting piece and the second connecting piece are rotatably assembled in the oxygen introducing pipe through the rotating shaft.

In a further arrangement of the present invention, the mounting bracket comprises: the fixing frame is arranged on one side of the combustor; a plurality of mounting blocks arranged on the fixing frame; the clamping block is assembled on the oxygen introducing pipe and assembled with the mounting block; the fixture block is provided with a mounting groove for the mounting block to be clamped and embedded; and the clamping block is provided with a locking bolt for locking the mounting block in the mounting groove.

According to the invention, a temperature detection probe is further arranged on one side, close to the nozzle, of the adapter tube.

According to the invention, the front end of the nozzle is made of heat-resistant alloy steel, and the outer wall of the nozzle is provided with refractory castable.

The second purpose of the invention is to provide a high-temperature area adjusting method of a rotary kiln, which is used for solving the problems that the high-temperature area in the rotary kiln cannot be adjusted, the materials are heated unevenly and the discharging is inconvenient.

A method of high temperature zone regulation of a rotary kiln, the method being based on the above high temperature zone regulation apparatus of a rotary kiln, the method comprising:

s1, observing the combustion condition in the hearth and determining a low-temperature (insufficient combustion) area;

s2, controlling the adjusting assembly through the controller, further adjusting the oxygen spraying assembly to face to a low-temperature (insufficient combustion) area, and simultaneously fixing the angle of the nozzle through the fixing structure;

s3, supplementing oxygen into the hearth from the nozzle;

and S4, monitoring the temperature of one end of the nozzle in real time by the temperature detection probe, and controlling the oxygen cabin to close the oxygen supply channel by the controller when the temperature is too high.

After the technical scheme is adopted, the invention has the beneficial effects that:

according to the invention, the oxygen injection assembly and the adjusting assembly are arranged on the burner, and oxygen is supplemented into the hearth along the coal injection combustion direction of the burner, so that pulverized coal in the hearth can be fully combusted, the adjusting assembly can adjust the direction of the oxygen injection assembly according to the actual combustion condition in the hearth, and further oxygen supplementation can be carried out aiming at a low-temperature region in the hearth, so that the pulverized coal can be better dispersed in the hearth, the uniformity of heating of materials in the hearth is ensured, the materials can be smoothly discharged from the discharge port, the production efficiency is improved, meanwhile, the heat loss in the calcining process is avoided, and the fuel saving is facilitated.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of the embodiment;

FIG. 2 is a partial cross-sectional view of the embodiment;

FIG. 3 is a further partial cross-sectional view of the embodiment;

fig. 4 is a schematic partial explosion of the embodiment.

Description of reference numerals: 1. an oxygen bin; 2. a mounting frame; 3. an oxygen spraying assembly; 31. an oxygen pipe; 32. a transfer tube; 33. a nozzle; 4. an adjustment assembly; 41. a first pull rod; 42. a second pull rod; 43. a first connecting member; 44. a fixing member; 45. a first drive motor; 46. a fixed structure; 461. a third pull rod; 462. a fourth pull rod; 463. a second connecting member; 464. an abutting member; 465. a second drive motor; 5. a rotating shaft; 21. a fixed mount; 22. mounting blocks; 23. a clamping block; 6. a temperature detection probe; 7. refractory castable; 10. supporting a tube; 11. a drive housing; 12. a motor; 13. a turbine; 14. a worm; 15. a through hole; 16. a screw; 20. a burner.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment as necessary without making a contribution thereto after reading the present specification, but all are protected by patent laws within the scope of the claims of the present invention.