CN219433811U

CN219433811U - Waste heat recovery flue cover

Info

Publication number: CN219433811U
Application number: CN202320414512.7U
Authority: CN
Inventors: 马强; 简科; 张波
Original assignee: Deyang Kunwei Mechanical And Electrical Equipment Co ltd
Current assignee: Deyang Kunwei Mechanical And Electrical Equipment Co ltd
Priority date: 2023-03-07
Filing date: 2023-03-07
Publication date: 2023-07-28
Anticipated expiration: 2033-03-07

Abstract

The utility model relates to a waste heat recovery flue cover which comprises a base, a lining, an outer cover and a heat insulation pad, wherein the lining and the outer cover are cylindrical, the inner lining is arranged in the outer cover, a gap exists between the lining and the outer cover, the heat insulation pad is arranged between the lining and the outer cover, the bottoms of the lining and the outer cover are welded and connected with the base into a whole, air holes are further formed in the upper end of the lining, the air holes penetrate through the outer cover and the heat insulation pad, and a plurality of protruding points are further formed in the inner peripheral surface of the outer cover and used for clamping the heat insulation pad in a matched manner. Utilize inside lining and dustcoat sealed parcel heat insulating mattress, prevent that the heat insulating mattress from exposing outside, reduce its life to weld the bump on the dustcoat inner wall, not only can cooperate the inside lining extrusion fixed heat insulating mattress, can also form one deck air bed between dustcoat and heat insulating mattress, reinforcing heat insulation property.

Description

Waste heat recovery flue cover

Technical Field

The utility model relates to the technical field of heat preservation structures, in particular to a waste heat recovery flue cover.

Background

Sintering refers to the transformation of a powdery material into a dense body, and is a traditional technological process. This process has long been used to produce ceramics, powder metallurgy, refractory materials, ultra-high temperature materials, and the like. In the sintering production process, a larger part of heat energy is discharged into the atmosphere in the form of sensible heat of sintering flue gas and cooler waste gas, and is extremely wasted in a large environment advocating energy conservation and emission reduction. Therefore, most sintering equipment is updated, and a flue gas waste heat boiler is configured to recycle the part of heat energy to produce steam and power, wherein a flue gas hood of the waste heat boiler becomes a key whether the waste heat recycling rate is high or not. The existing smoke hood generally adopts two schemes, namely, a high Wen Teshu steel plate is adopted as an inner layer, and aluminum silicate cotton and other soft materials are sleeved on an outer layer in a heat insulation mode, so that the aluminum silicate cotton is externally and directly exposed in the air, is easily subjected to dust phenomenon due to the influence of collision and vibration and is poor in waterproofness, and the heat insulation performance can be reduced when meeting water; the other is to use a common carbon steel plate as a shell, wherein a heat insulation wear-resistant layer is formed in the steel plate, but the steel plate is long in service time, and the heat insulation wear-resistant layer is damaged due to cracking, so that the heat insulation performance is reduced.

Disclosure of Invention

In view of the above, it is necessary to provide a waste heat recovery flue cover in view of the above-described problems.

The utility model provides a waste heat recovery flue cover, includes the base, the inside lining, dustcoat and heat insulating mattress, inside lining and dustcoat are cylindric, the inside lining is established in the dustcoat, and has the clearance between inside lining and the dustcoat, the heat insulating mattress is installed between inside lining and the dustcoat, inside lining and dustcoat bottom all with the base welding links into an organic whole, the inside lining upper end still is provided with the gas pocket, the gas pocket runs through the dustcoat reaches the heat insulating mattress, still be provided with a plurality of bumps on the dustcoat inner peripheral surface for cooperation inside lining extrusion centre gripping heat insulating mattress.

Preferably, the insulation mat is made of aluminum silicate refractory fiber.

Preferably, the upper end of the outer cover is also provided with a radiating fin.

Preferably, the peripheral side of the outer cover is provided with a plurality of ribs at uniform intervals along the axial direction.

Preferably, the periphery of the outer cover is also provided with a lifting lug.

The utility model has the advantages that: utilize inside lining and dustcoat sealed parcel heat insulating mattress, prevent that the heat insulating mattress from exposing outside, reduce its life to weld the bump on the dustcoat inner wall, not only can cooperate the inside lining extrusion fixed heat insulating mattress, can also form one deck air bed between dustcoat and heat insulating mattress, reinforcing heat insulation property.

Drawings

FIG. 1 is a schematic view of a waste heat recovery flue cover according to an embodiment;

fig. 2 is a schematic cross-sectional view of a waste heat recovery flue cover.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1-2, a waste heat recovery flue cover comprises a base 1, a lining 2, an outer cover 3 and a heat insulation pad 4, wherein the lining 2 and the outer cover 3 are cylindrical, the lining 2 is sleeved in the outer cover 3, a gap exists between the lining 2 and the outer cover 3, the heat insulation pad 4 is arranged between the lining 2 and the outer cover 3, the bottoms of the lining 2 and the outer cover 3 are welded and connected with the base 1 into a whole, air holes 21 are formed in the upper end of the lining 2, the air holes 21 penetrate through the outer cover 3 and the heat insulation pad 4, and a plurality of protruding points 31 are formed in the inner peripheral surface of the outer cover 3 and are used for being matched with the lining 2 to squeeze and clamp the heat insulation pad 4. Specifically, in this embodiment, inside lining 2 and dustcoat 3 all are cylindric, and inside lining 2 adopts fire-resistant high strength steel to make, and dustcoat 3 adopts ordinary steel sheet, and inside lining 2 and dustcoat 3 all weld on base 1, are provided with insulating mattress 4 between inside lining 2 and dustcoat 3, in this application, insulating mattress 4 is made of aluminium silicate refractory fiber, because retrieve flue cover and perhaps vertically arrange, in order to make dustcoat 3 cooperate inside lining 2 clamp insulating mattress 4, and reserve certain air bed in this clearance, be provided with a plurality of bump 31 on dustcoat 3 inner wall, can tightly laminate insulating mattress 4 on the outer wall of inside lining 2 to reserve certain air bed between insulating mattress 4 and dustcoat 3, as the air bed thermal-insulated, with the holistic heat preservation thermal-insulated performance of reinforcing flue cover.

As shown in fig. 1-2, the upper end of the outer cover 3 is further provided with a heat dissipation fin 32, so that the heat dissipation area of the end face of the outer cover 3 is increased, the heat dissipation performance is improved, heat accumulation is avoided, the temperature of the end face of the outer cover 3 is high, and the mistaken touch is easy to scald.

As shown in fig. 1-2, a plurality of ribs 33 are uniformly arranged on the peripheral side of the outer cover 3 along the axial direction at intervals, so that the structural strength of the outer cover 3 is enhanced.

As shown in fig. 1, the periphery of the outer cover 3 is further provided with a lifting lug 34, so that the lifting lug 34 is convenient to lift by using a crane during assembly and maintenance, and the maintenance is more convenient.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. The utility model provides a waste heat recovery flue cover which characterized in that: including the base, inside lining, dustcoat and heat insulating mattress, inside lining and dustcoat are cylindric, the inside lining is established in the dustcoat, and has the clearance between inside lining and the dustcoat, the heat insulating mattress is installed between inside lining and the dustcoat, inside lining and dustcoat bottom all with the base welding links into an organic whole, the inside lining upper end still is provided with the gas pocket, the gas pocket runs through the dustcoat reaches the heat insulating mattress, still be provided with a plurality of bumps on the dustcoat inner peripheral surface for cooperation inside lining extrusion centre gripping heat insulating mattress.

2. A waste heat recovery flue cover as defined in claim 1, wherein: the heat insulation pad is made of aluminum silicate refractory fiber.

3. A waste heat recovery flue cover as defined in claim 1, wherein: and the upper end of the outer cover is also provided with radiating fins.

4. A waste heat recovery flue cover as defined in claim 1, wherein: and a plurality of ribs are uniformly arranged on the peripheral side of the outer cover at intervals along the axial direction.

5. A waste heat recovery flue cover as defined in claim 1, wherein: and the periphery of the outer cover is also provided with a lifting lug.