CN217732980U

CN217732980U - Lime rotary kiln burning zone masonry structure

Info

Publication number: CN217732980U
Application number: CN202220859983.4U
Authority: CN
Inventors: 朱子江; 尚学军; 金从进; 徐华伟; 班国庆; 杨政宏; 李�杰
Original assignee: Jiangsu Jiaht Materials Co ltd
Current assignee: Jiangsu Jiaht Materials Co ltd
Priority date: 2022-04-14
Filing date: 2022-04-14
Publication date: 2022-11-04
Anticipated expiration: 2032-04-14

Abstract

The utility model discloses a lime rotary kiln burning zone masonry structure relates to rotary kiln technical field, including the box hat, be equipped with spinel prefabricated brick in the box hat, it has the spinel pouring material to fill between the adjacent spinel prefabricated brick. The problem of firing zone refractory life is short is solved, refractory maintenance number of times has been reduced, lime output has been improved, has reduced refractory consumption simultaneously, resources are saved.

Description

Lime rotary kiln burning zone masonry structure

Technical Field

The utility model relates to a rotary kiln technical field especially relates to a lime rotary kiln burning zone masonry structure.

Background

The traditional lime rotary kiln burning zone is built by adopting magnesia-chrome bricks or magnesia-spinel bricks which are burnt at high temperature. The rotary kiln is characterized in that the lining masonry of the kiln body rotates along with the kiln shell at high temperature, is in a vibration state for a long time, and simultaneously bears the abrasion and impact effects of furnace materials. The lime rotary kiln generally adopts mixed gas of coke oven gas and converter gas, coal powder and the like as fuels, the highest temperature of a burning zone is about 1500-1600 ℃, and high-aluminum materials are not suitable for being used under the conditions. The main problems of the magnesia-chrome brick and the magnesia-spinel brick adopted by the lime rotary kiln are brick falling and peeling, and the kiln is stopped for maintenance and burning zone usually for 4-8 months, so that on one hand, the yield is reduced, the energy consumption is large, and on the other hand, the refractory material consumption is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned technical problem, overcome prior art's shortcoming, provide a lime rotary kiln burning zone masonry structure, including the box hat, be equipped with spinel prefabricated brick in the box hat, it has the spinel pouring material to fill between the adjacent spinel prefabricated brick.

The utility model discloses the technical scheme who further prescribes a limit to is:

in the lime rotary kiln burning zone masonry structure, the column type anchoring piece is arranged on the inner surface of the steel shell, and the spinel precast brick is welded on the column type anchoring piece.

In the lime rotary kiln burning zone masonry structure, a spinel precast brick is welded on two column type anchoring pieces.

In the lime rotary kiln burning zone masonry structure, the bottom anchoring piece is arranged in the spinel prefabricated brick close to the lower part, and the two ends of the bottom anchoring piece extend out of the spinel prefabricated brick.

In the lime rotary kiln burning zone masonry structure, the extending length of the bottom anchoring part is more than 50mm.

The lime rotary kiln burning zone masonry structure is characterized in that a V-shaped anchoring piece is arranged in a spinel pouring material and is welded on a steel shell.

The lime rotary kiln burning zone masonry structure has the advantage that the opening end of the V-shaped anchoring piece is far away from other anchoring pieces.

In the lime rotary kiln burning zone masonry structure, the distance between every two adjacent V-shaped anchoring parts is 300-400mm.

The diameter of each anchoring piece is 5-8mm in the masonry structure of the lime rotary kiln burning zone.

The utility model has the advantages that: the problem of firing zone refractory life is short is solved, refractory maintenance number of times has been reduced, lime output has been improved, has reduced refractory consumption simultaneously, resources are saved. The overhaul period of the lime rotary kiln can be prolonged to 1-2 years, and the overhaul service life of the fired zone refractory material is longer than 4 years.

Drawings

Fig. 1 is a schematic structural view of the present invention;

wherein: 1. spinel precast bricks; 2. spinel castable; 3. a column anchor; 4. a bottom anchor; 5. and a V-shaped anchor.

Detailed Description

The masonry structure of the lime rotary kiln burning zone provided by the embodiment is as shown in fig. 1, and comprises a steel shell, wherein spinel precast bricks 1 are arranged in the steel shell, and spinel castable 2 is filled between adjacent spinel precast bricks 1. The inner surface of the steel shell is provided with column anchoring pieces 3, and a spinel prefabricated brick 1 is welded on the two column anchoring pieces 3. The bottom anchoring piece 4 is arranged in the spinel prefabricated brick 1 and close to the lower part, and two ends of the bottom anchoring piece 4 extend out of the spinel prefabricated brick 1, and the extending length is more than 50mm. The spinel castable 2 is internally provided with a V-shaped anchoring piece 5, the V-shaped anchoring piece 5 is welded on the steel shell, and the opening end is far away from other anchoring pieces. The adjacent V-shaped anchors 5 are spaced at a distance of 300-400mm. The diameters of all the anchoring parts are 5-8mm.

When building a lime rotary kiln burning zone, firstly welding an anchoring piece on a steel shell, and then welding a spinel precast brick 1 on the steel shell; and after purging, pouring spinel castable 2 between the spinel precast bricks 1.

By the aid of the scheme, the overhaul period of the lime rotary kiln can be prolonged to 1-2 years, and the overhaul service life of the fired belt refractory material is longer than 4 years. The overhaul period of the firing zone of the lime rotary kiln built by the magnesia-chrome bricks or magnesia spinel bricks is 4-8 months, and the overhaul service life of the refractory material of the firing zone is less than 3 years. After the scheme is adopted, the consumption of the refractory material of the burning zone is reduced by more than 40%.

In addition to the above embodiments, the present invention may have other embodiments; all the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope claimed by the present invention.

Claims

1. The utility model provides a lime rotary kiln burning zone masonry structure, includes the steel casing, its characterized in that: be equipped with spinel prefabricated brick (1) in the box hat, it is adjacent it has spinel castable (2) to fill between spinel prefabricated brick (1), the box hat internal surface is equipped with column anchor assembly (3), spinel prefabricated brick (1) welding is in on column anchor assembly (3).

2. The masonry structure of the lime rotary kiln burning zone as claimed in claim 1, wherein: and one spinel precast brick (1) is welded on the two column type anchoring pieces (3).

3. The masonry structure of the lime rotary kiln burning zone as claimed in claim 1, wherein: the spinel precast brick (1) is internally provided with a bottom anchoring part (4) close to the lower part, and two ends of the bottom anchoring part (4) extend out of the spinel precast brick (1).

4. The masonry structure of the lime rotary kiln burning zone as defined in claim 3, wherein: the bottom anchoring piece (4) extends out for more than 50mm.

5. The masonry structure of the lime rotary kiln burning zone as claimed in claim 1, wherein: and a V-shaped anchoring piece (5) is arranged in the spinel castable (2), and the V-shaped anchoring piece (5) is welded on the steel shell.

6. The masonry structure of the lime rotary kiln burning zone as defined in claim 5, wherein: the open end of the V-shaped anchor (5) is far away from other anchors.

7. The masonry structure of the lime rotary kiln burning zone as claimed in claim 5, wherein: the distance between the adjacent V-shaped anchors (5) is 300-400mm.

8. The masonry structure of the lime rotary kiln burning zone as claimed in claim 1, wherein: the diameters of all the anchoring parts are 5-8mm.