CN112556409A

CN112556409A - Rolling ring supporting device of indirect heating rotary kiln

Info

Publication number: CN112556409A
Application number: CN202011492641.5A
Authority: CN
Inventors: 黄香胡
Original assignee: Yixing Hotteen Environmental Protection Engineering Co ltd
Current assignee: Yixing Hotteen Environmental Protection Engineering Co ltd
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2021-03-26

Abstract

The invention provides a rolling ring supporting device of an indirect heating rotary kiln, which comprises a plurality of first supporting mechanisms and a plurality of second supporting mechanisms, wherein the first supporting mechanisms and the second supporting mechanisms are uniformly arranged between the inner wall of a rolling ring and the outer wall of a kiln body; the first support mechanism comprises a first rolling ring base plate and a first kiln body base plate, the first rolling ring base plate is fixed on the inner wall of the rolling ring, the first kiln body base plate is fixed on the outer wall of the kiln body, and each group of opposite first rolling ring base plate and each first kiln body base plate are tightly attached to each other to form a group of support blocks; the second supporting mechanism comprises a second rolling ring base plate and a second kiln body base plate, the second rolling ring base plate is fixed on the inner wall of the rolling ring, the second kiln body base plate is fixed on the outer wall of the kiln body, a sliding block is fixed on the second rolling ring base plate, a corresponding sliding groove is formed in the second kiln body base plate, the sliding groove is longitudinally formed in the surface of the kiln body, and the sliding block is located in the sliding groove to form a sliding pair. The invention can limit the deformation of the rolling ring in a safe range and protect the structure of the rolling ring.

Description

Rolling ring supporting device of indirect heating rotary kiln

Technical Field

The invention relates to the technical field of rotary kilns, in particular to a rolling ring supporting device of an indirect heating rotary kiln.

Background

The kiln body of the indirect heating rotary kiln is cylindrical, and the length of the kiln body is generally dozens of meters to more than one hundred meters. In order to support the kiln body, three to five rolling ring supports are generally provided, and the rolling rings are driven by the riding wheels below. At present, the rolling ring is generally directly fixed on the outer wall of a kiln body, but in the operation of the kiln body, heating is needed, high temperature enables the kiln body and the rolling ring to generate certain deformation, the materials and the temperatures of the kiln body and the rolling ring are different, so the deformation is not synchronous, especially the kiln body can also longitudinally deform, the rolling ring is easily extruded and deformed, the kiln body is unstable in rotation, and the structure of the kiln body is damaged.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a rolling ring supporting device of an indirect heating rotary kiln, which can effectively protect a rolling ring and reduce extrusion damage.

The specific technical scheme is as follows:

the indirect heating rotary kiln rolling ring supporting device comprises a plurality of first supporting mechanisms and a plurality of second supporting mechanisms which are uniformly arranged between the inner wall of a rolling ring and the outer wall of a kiln body;

the first support mechanism comprises a first rolling ring base plate and a first kiln body base plate, the first rolling ring base plate is fixed on the inner wall of the rolling ring, the first kiln body base plate is fixed on the outer wall of the kiln body, the first rolling ring base plate and the first kiln body base plate correspond to each other one by one, and each group of the first rolling ring base plate and the first kiln body base plate which are opposite to each other are mutually clung to form a group of support blocks;

the second supporting mechanism comprises a second rolling ring base plate and a second kiln body base plate, the second rolling ring base plate is fixed on the inner wall of the rolling ring, the second kiln body base plate is fixed on the outer wall of the kiln body, the second rolling ring base plate and the second kiln body base plate correspond to each other one by one, a sliding block is fixed on the second rolling ring base plate, a corresponding sliding groove is formed in the second kiln body base plate, the sliding groove is longitudinally formed in the surface of the kiln body, and the sliding block is located in the sliding groove to form a sliding pair.

The two ends of the sliding groove are respectively provided with a baffle, and the length of the sliding block along the longitudinal direction of the kiln body is shorter than that of the sliding groove.

And a gap is reserved between each group of second kiln body base plates and each second rolling ring base plate which are opposite, and a gap is reserved between each sliding block and the bottom of each sliding groove.

The first supporting mechanism and the plurality of second supporting mechanisms are distributed in a staggered mode at intervals and are distributed annularly along the surface of the kiln body.

The invention has the beneficial technical effects that:

1. the multiple groups of first supporting mechanisms and the multiple groups of second supporting mechanisms are symmetrically arranged on the inner side of the rolling ring to support the rolling ring, particularly the second supporting structures, so that a certain gap is reserved between the rolling ring and the kiln body, and when the rolling ring deforms at high temperature, the deformation of the rolling ring can be absorbed by the gap of the second supporting mechanisms. When the rolling ring deforms in the running process, the gap between the second supporting mechanisms gradually becomes smaller, and if the deformation amount is too large, the deformation of the rolling ring is prevented after the second kiln body backing plate and the second rolling ring backing plate are in close contact.

The first supporting mechanisms and the second supporting mechanisms are in multiple groups and are uniformly arranged between the rolling ring and the kiln body, so that the deformation of the rolling ring can be limited within a safe range, and the structure of the rolling ring is protected.

2. The second supporting mechanism is provided with a gap to protect the kiln body, and when the kiln body is heated and deformed, the deformation of the kiln body can be absorbed by the reserved gap. When the radial deformation of the kiln body is overlarge, the second kiln body backing plate and the second rolling ring backing plate are tightly contacted, and then radial constraint force is exerted on the kiln body, so that the deformation of the kiln body is controlled within a safe range.

3. The sliding mechanism on the second supporting mechanism can enable the rolling ring to slide in a certain range when the kiln body longitudinally deforms, and the sliding mechanism has a guiding function and avoids the rolling ring from being extruded and deformed in the longitudinal direction.

Drawings

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

FIG. 2 is a schematic view of the enlarged partial structure of FIG. 1;

fig. 3 is a schematic structural view of a second kiln body mat according to the invention.

Detailed Description

The specific technical scheme of the invention is described by combining the embodiment.

As shown in fig. 1 and 2, the indirect heating rotary kiln rolling ring supporting device comprises a plurality of first supporting mechanisms and a plurality of second supporting mechanisms which are uniformly arranged between the inner wall of a rolling ring 1 and the outer wall of a kiln body 2;

the first supporting mechanism comprises a first rolling ring backing plate 11 and a first kiln body backing plate 21, the first rolling ring backing plate 11 is fixed on the inner wall of the rolling ring 1, the first kiln body backing plate 21 is fixed on the outer wall of the kiln body 2, the first rolling ring backing plate 11 and the first kiln body backing plate 21 correspond to each other one by one, and each group of the first rolling ring backing plate 11 and the first kiln body backing plate 21 which are opposite to each other are mutually clung to form a group of supporting blocks;

the second supporting mechanism include that second rolls a ring backing plate 12 and second kiln body backing plate 22, second rolls a ring backing plate 12 and fixes on the inner wall that rolls ring 1, and second kiln body backing plate 22 fixes on the outer wall of the kiln body 2, and second rolls a ring backing plate 12 and second kiln body backing plate 22 one-to-one to be fixed with slider 13 on the second rolls a ring backing plate 12, second kiln body backing plate 22 on be equipped with corresponding spout 23, spout 23 along kiln body 2 surface vertically set up, slider 13 be located spout 23 in form the sliding pair.

As shown in fig. 3, two ends of the sliding chute 23 are respectively provided with a baffle 24, and the length of the sliding block 13 along the longitudinal direction of the kiln body 2 is shorter than that of the sliding chute 23.

When the kiln body 2 longitudinally deforms and stretches, the first support mechanism and the plurality of second support mechanisms can slide relatively, wherein the sliding block 13 slides in the sliding groove 23, and the sliding range is limited by the baffle 24. The sliding mechanism has a guiding function and avoids the rolling ring 1 from being extruded and deformed in the longitudinal direction.

And a gap is reserved between each group of second kiln body base plates 22 and the second rolling ring base plates 12, and a gap is reserved between the sliding block 13 and the bottom of the sliding groove 23.

When the rolling ring 1 is deformed at a high temperature, the deformation amount of the rolling ring 1 can be absorbed by the gap of the second support mechanism. When the rolling ring 1 deforms in the running process, the gap between the second supporting mechanisms is gradually reduced, and if the deformation amount is too large, the deformation of the rolling ring 1 is prevented after the second kiln body base plate 22 and the second rolling ring base plate 12 are tightly contacted.

When the kiln body 2 is deformed by heating, the deformation amount can be absorbed by the reserved gap of the second supporting mechanism. When the radial deformation of the kiln body 2 is too large, the second kiln body backing plate 22 and the second rolling ring backing plate 12 are tightly contacted, and then radial constraint force is exerted on the kiln body 2, so that the deformation of the kiln body is controlled within a safe range.

The first supporting mechanism and the plurality of second supporting mechanisms are distributed in a staggered mode at intervals and are distributed annularly along the surface of the kiln body 2. The first supporting mechanisms and the second supporting mechanisms are multiple in number and are uniformly arranged between the rolling ring and the kiln body, so that the deformation of the rolling ring can be limited within a safe range, and the structure of the rolling ring 1 is protected.

Claims

1. The indirect heating rotary kiln rolling ring supporting device is characterized by comprising a plurality of first supporting mechanisms and a plurality of second supporting mechanisms which are uniformly arranged between the inner wall of a rolling ring (1) and the outer wall of a kiln body (2);

the first supporting mechanism comprises a first rolling ring base plate (11) and a first kiln body base plate (21), the first rolling ring base plate (11) is fixed on the inner wall of the rolling ring (1), the first kiln body base plate (21) is fixed on the outer wall of the kiln body (2), the first rolling ring base plate (11) and the first kiln body base plate (21) correspond to each other one by one, and each group of the first rolling ring base plate (11) and the first kiln body base plate (21) which are opposite to each other are tightly attached to each other to form a group of supporting blocks;

the second supporting mechanism comprises a second rolling ring backing plate (12) and a second kiln body backing plate (22), the second rolling ring backing plate (12) is fixed on the inner wall of the rolling ring (1), the second kiln body backing plate (22) is fixed on the outer wall of the kiln body (2), the second rolling ring backing plate (12) corresponds to the second kiln body backing plate (22) one by one, a sliding block (13) is fixed on the second rolling ring backing plate (12), a corresponding sliding groove (23) is formed in the second kiln body backing plate (22), the sliding groove (23) is longitudinally arranged along the surface of the kiln body (2), and the sliding block (13) is located in the sliding pair formed in the sliding groove (23).

2. The indirect heating rotary kiln rolling ring supporting device as claimed in claim 1, wherein two ends of the sliding chute (23) are respectively provided with a baffle (24), and the length of the sliding block (13) along the longitudinal direction of the kiln body (2) is shorter than that of the sliding chute (23).

3. The indirect heating rotary kiln rolling ring supporting device according to claim 1 or 2, wherein a gap is reserved between each opposite group of the second kiln body backing plates (22) and the second rolling ring backing plates (12), and a gap is reserved between the sliding block (13) and the bottom of the sliding groove (23).

4. The indirect heating rotary kiln rolling ring supporting device as claimed in claim 1, wherein the first supporting mechanism and the plurality of second supporting mechanisms are arranged in a staggered manner at intervals and are annularly distributed along the surface of the kiln body (2).