CN212179547U

CN212179547U - Anti-falling structure for kiln tail of rotary kiln

Info

Publication number: CN212179547U
Application number: CN202020398439.5U
Authority: CN
Inventors: 陆杏军; 扶德瑜; 张晔
Original assignee: Jiangsu Daojie Environmental Technology Co ltd
Current assignee: Jiangsu Daojie Environmental Technology Co ltd
Priority date: 2020-03-25
Filing date: 2020-03-25
Publication date: 2020-12-18
Anticipated expiration: 2030-03-25

Abstract

The utility model relates to a rotary kiln technical field, specific rotary kiln tail anti-drop structure that says so, including the rotary kiln body and two combustion chambers, the tail end activity of the rotary kiln body stretches into two inside one sides of combustion chambers, be fixed with kiln tail heat-resisting retaining ring on the tail end outer wall of the rotary kiln body, kiln tail heat-resisting retaining ring outside welded fastening has the return air sleeve pipe, welded fastening has sealed retaining ring on the outer wall of return air sleeve pipe, the inner wall welded fastening of two combustion chambers has kiln tail heat-resisting baffle. The utility model discloses simple structure replaces ordinary Y type anchor assembly through the welding steel reinforcement cage for steel reinforcement cage forms overall structure with the connection base member, so be difficult to the fracture problem of droing that appears, and bulk strength obtains guaranteeing, and through the return air sleeve pipe, the outside cooling gas can get into through the return air sleeve pipe and cool off kiln tail part, thereby makes the rotary kiln body afterbody of stretching into two combustion chambers inside dispel the heat fast, increases the life of equipment.

Description

Anti-falling structure for kiln tail of rotary kiln

Technical Field

The utility model belongs to the technical field of the rotary kiln device, concretely relates to rotary kiln tail anti-drop structure.

Background

The burning mode that the rotary kiln adds the second combustion chamber is generally used to solid useless burning, in the useless burning of danger, for the clearance of guaranteeing the dioxin, the second combustion chamber temperature will reach more than 1100 degrees, like this the rotary kiln tail end temperature of being connected with the second combustion chamber will be very high, can reach 900 to 1000 degrees or even higher, like this return kiln tail steel construction position will damage very easily and warp and the fire clay drops, like this not only can influence equipment life, still can cause the influence to production safety.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rotary kiln tail anti-drop structure to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a rotary kiln tail anti-drop structure, includes the rotary kiln body and second combustion chamber, the tail end activity of the rotary kiln body stretches into the inside one side of second combustion chamber, be fixed with kiln tail heat-resisting retaining ring on the tail end outer wall of the rotary kiln body, kiln tail heat-resisting retaining ring outside welded fastening has the return air sleeve pipe, welded fastening has sealed retaining ring on the outer wall of return air sleeve pipe, the inner wall welded fastening of second combustion chamber has kiln tail heat-resisting baffle.

As a further optimization of the technical scheme, the return air sleeve and the rotary kiln body are arranged concentrically.

As a further optimization of the technical scheme, the sealing baffle ring is in sliding fit with the outer wall of the second combustion chamber.

As a further optimization of the technical scheme, a reinforcement cage is welded and fixed inside the kiln tail heat-resisting baffle and the kiln tail heat-resisting retainer ring, and a refractory material pouring body is poured and formed in the reinforcement cage.

As a further optimization of the technical scheme, the kiln tail heat-resisting baffle is in clearance fit with the tail end of the rotary kiln body, and the kiln tail heat-resisting baffle covers the upper third part of the rotary kiln body.

The utility model discloses a technological effect and advantage:

the utility model discloses simple structure replaces ordinary Y type anchor assembly through the welding steel reinforcement cage for steel reinforcement cage forms overall structure with the connection base member, so be difficult to the fracture problem of droing that appears, and bulk strength obtains guaranteeing, and through the return air sleeve pipe, the outside cooling gas can get into through the return air sleeve pipe and cool off kiln tail part, thereby makes the rotary kiln body afterbody of stretching into two combustion chambers inside dispel the heat fast, increases the life of equipment.

Drawings

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

fig. 2 is an enlarged schematic structural diagram of a in fig. 1 according to the present invention.

In the figure: 1. a rotary kiln body; 2. a second combustion chamber; 3. an air return sleeve; 4. a sealing baffle ring; 5. a kiln tail heat-resistant baffle; 6. kiln tail heat-resisting retaining ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-2, the anti-falling structure for the kiln tail of the rotary kiln comprises a rotary kiln body 1 and a secondary combustion chamber 2, wherein the tail end of the rotary kiln body 1 movably extends into one side inside the secondary combustion chamber 2, and the end part of the rotary kiln body 1 can rotate in the secondary combustion chamber 2.

Kiln tail heat-resisting retaining ring 6 outside welded fastening has return air sleeve pipe 3, welded fastening has sealed fender ring 4 on return air sleeve pipe 3's the outer wall, return air sleeve pipe 3 sets up with the rotary kiln body 1 is concentric, and the interval between return air sleeve pipe 3 and the rotary kiln body 1 surface is the same with kiln tail heat-resisting retaining ring 6's thickness, and outside cooling gas can get into through return air sleeve pipe 3, cools off kiln tail part, sealed fender ring 4 and two combustion chamber 2's outer wall sliding fit are equipped with the folding portion on the sealed fender ring 4, can provide certain elasticity to make and slide the laminating between the outer wall of sealed fender ring 4 and two combustion chamber 2, guarantee sealing performance.

And a kiln tail heat-resisting retainer ring 6 is fixed on the outer wall of the tail end of the rotary kiln body 1, and a kiln tail heat-resisting baffle plate 5 is fixed on the inner wall of the secondary combustion chamber 2 in a welding manner. The kiln tail heat-resisting baffle 5 and the inside welded fastening of kiln tail heat-resisting retaining ring 6 have the steel reinforcement cage, the pouring shaping has refractory material to pour the body in the steel reinforcement cage, and refractory material adopts corundum refractory material, and the steel reinforcement cage adopts phi 12's 2520 heat-resisting round steel to make, and high temperature resistant corrosion resistant owing to adopt welded fastening, forms overall structure, so be difficult to appear the fracture problem of droing, and bulk strength obtains guaranteeing. The kiln tail heat-resistant baffle 5 is in clearance fit with the tail end of the rotary kiln body 1, the kiln tail heat-resistant baffle 5 is of a double-layer structure, an expansion gap is formed in the middle of the kiln tail heat-resistant baffle 5, and the kiln tail heat-resistant baffle 5 covers the upper third part of the rotary kiln body 1 and is used for shielding high-temperature tempering in the secondary combustion chamber 2 and protecting the rotary kiln body 1.

Replace ordinary Y type anchor assembly through the welding steel reinforcement cage for steel reinforcement cage and connection base member form overall structure, so be difficult to the fracture problem that drops that appears, and bulk strength obtains guaranteeing, through return air sleeve pipe 3, and external cooling gas can get into through return air sleeve pipe 3 and cool off kiln tail part, thereby makes to stretch into the quick heat dissipation of the 1 afterbody of the rotary kiln body of two combustion chambers 2 inside, increases the life of equipment.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a rotary kiln tail anti-drop structure, includes rotary kiln body (1) and second combustion chamber (2), its characterized in that: the tail end activity of the rotary kiln body (1) stretches into the inside one side of the secondary combustion chamber (2), a kiln tail heat-resisting retainer ring (6) is fixed on the outer wall of the tail end of the rotary kiln body (1), a return air sleeve (3) is fixed on the outer portion of the kiln tail heat-resisting retainer ring (6) in a welded mode, a sealing retainer ring (4) is fixed on the outer wall of the return air sleeve (3) in a welded mode, and a kiln tail heat-resisting baffle (5) is fixed on the inner wall of the secondary combustion chamber (2) in a welded mode.

2. The anti-falling structure for the kiln tail of the rotary kiln as claimed in claim 1, wherein: the air return sleeve (3) and the rotary kiln body (1) are arranged concentrically.

3. The anti-falling structure for the kiln tail of the rotary kiln as claimed in claim 1, wherein: the sealing baffle ring (4) is in sliding fit with the outer wall of the second combustion chamber (2).

4. The anti-falling structure for the kiln tail of the rotary kiln as claimed in claim 1, wherein: and a reinforcement cage is welded and fixed inside the kiln tail heat-resisting baffle (5) and the kiln tail heat-resisting retainer ring (6), and a refractory material pouring body is poured and formed in the reinforcement cage.

5. The anti-falling structure for the kiln tail of the rotary kiln as claimed in claim 1, wherein: the kiln tail heat-resistant baffle (5) is in clearance fit with the tail end of the rotary kiln body (1), and the kiln tail heat-resistant baffle (5) covers the upper third part of the rotary kiln body (1).