CN117821088A - Castable coke pot with heat insulation layer - Google Patents
Castable coke pot with heat insulation layer Download PDFInfo
- Publication number
- CN117821088A CN117821088A CN202410198672.1A CN202410198672A CN117821088A CN 117821088 A CN117821088 A CN 117821088A CN 202410198672 A CN202410198672 A CN 202410198672A CN 117821088 A CN117821088 A CN 117821088A
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- China
- Prior art keywords
- castable
- heat insulation
- lining
- insulation layer
- fixing nails
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- 239000000571 coke Substances 0.000 title claims abstract description 68
- 238000009413 insulation Methods 0.000 title claims abstract description 39
- 239000000463 material Substances 0.000 claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 18
- 239000010959 steel Substances 0.000 claims abstract description 18
- 238000005266 casting Methods 0.000 claims description 16
- 230000009970 fire resistant effect Effects 0.000 claims description 10
- 239000002131 composite material Substances 0.000 claims description 5
- 238000010791 quenching Methods 0.000 abstract description 8
- 230000000171 quenching effect Effects 0.000 abstract description 8
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000007774 longterm Effects 0.000 abstract description 2
- 238000004321 preservation Methods 0.000 abstract description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 abstract 3
- 239000011248 coating agent Substances 0.000 abstract 3
- 238000000576 coating method Methods 0.000 abstract 3
- 239000003063 flame retardant Substances 0.000 abstract 3
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 239000002893 slag Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000004939 coking Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The invention discloses a castable coke tank with a heat insulation layer, which comprises: jiao Guangang skeleton, nanometer level heat insulating layer, pouring material inside lining and flame retardant coating staple, the burnt jar steel skeleton includes barrel part and end gate, barrel part adopts the steel sheet to weld into cylindric, end gate adopts the steel sheet to weld into two semicircular bottom doors that bisect, both cover nanometer level heat insulating layer and pouring material inside lining on barrel and the end gate, both are fixed by the flame retardant coating staple to the flame retardant coating staple includes three sections different arrangement forms, guarantees within rated life, and the slag or the phenomenon of falling the piece can not appear in the pouring material inlayer. The technical scheme of the invention has the advantages of stable and reliable long-term use, low maintenance cost, excellent heat preservation performance and the like, and is beneficial to improving the automation level of dry quenching.
Description
Technical Field
The invention relates to the field of metallurgical coking, in particular to a castable coke tank with a heat insulation layer.
Background
The coke tank is tank equipment for containing red coke of hot type in a dry quenching system in the coking industry, and penetrates through the whole dry quenching production process, and is firstly used for transporting red coke of 1100 ℃ pushed out of a carbonization chamber, and the coke tank filled with red coke is transported to the lower part of a dry quenching lifting machine through a coke tank carrier vehicle and then lifted to a dry quenching furnace through the lifting machine for dry quenching.
According to the shape of the tank body, the coke tank is divided into a round coke tank and a square coke tank, the round coke tank and the square coke tank can be used for receiving coke in a rotating way, and coke is uniformly distributed in the tank body and is the main stream in the current market; the latter is not rotatable and coke is distributed in a pile in the drum, an old technology in the last century, and is rarely applied on the market at present.
According to different lining materials, the circular coke tank is divided into a lining plate type coke tank with a block-shaped lining plate made of alloy materials and a castable type coke tank with refractory materials poured, and the two types of coke tanks are used in the market at present. The castable type coke tank is a new technology developed in about 2019, and the development of the castable type coke tank aims at overcoming some defects of the lining type coke tank, and is more applied in the new projects at present.
The lining plate type coke tank is easy to deform, crack or fall off in the use process, even the lining plate can fall off into a dry quenching furnace when the lining plate is most serious, the rotary sealing valve is crushed or blocked, the production is interrupted, the production is smooth, meanwhile, the potential safety hazard is brought, moreover, the replacement frequency of spare parts of the lining plate is high, the purchasing cost is high, the daily maintenance amount is large, the shortest replacement frequency of the lining plate of the bottom gate is only half a year, and in addition, in the red coke transportation process, the heat loss and burning loss of the lining plate type coke tank are large.
The castable type coke tank is used for many years, and according to the use experience of the site, the following problems are found, wherein the castable type coke tank with two forms of integral casting of lining materials and partial casting of precast blocks and partial casting of lining materials can also happen that fragments fall off and smash or a rotary sealing valve is blocked accidentally along with the increase of the service time, and the temperature of the outer wall of the coke tank is about 260 ℃ when red coke is transported, and the temperature is better than the temperature of the outer wall of the lining board type coke tank at 570 ℃, but the heat loss is not small.
Disclosure of Invention
According to the technical problems that the integral pouring of the lining material can cause fragments to fall off and smash or the rotary sealing valve is clamped along with the increase of the service time and the heat loss is large during red coke transportation, the castable coke tank with the heat insulation layer is provided. The invention mainly solves the problems of breaking off and crushing or clamping the rotary sealing valve and great heat loss during red coke transportation by innovations such as adding a nanoscale heat insulation layer, changing the proportion, improving the performance of the castable, optimizing the arrangement form of the fixing nails and the like.
The invention adopts the following technical means:
a castable coke drum with a thermal insulation layer, comprising:
jiao Guangang skeleton, nanoscale heat insulation layer, casting material lining and fire-resistant layer fixing nails;
the steel framework of the coke tank comprises a cylinder body part and a bottom gate, wherein the cylinder body part is welded into a cylinder shape by adopting a steel plate, and the bottom gate is welded into two half-round bottom gates which are opposite to each other by adopting the steel plate;
the cylinder body and the bottom gate are covered with a nanoscale heat insulation layer and a castable lining, and the nanoscale heat insulation layer and the castable lining are fixed by refractory layer fixing nails.
And one end of the fire-resistant layer fixing nail is welded to the steel framework of the coke tank, and the other end of the fire-resistant layer fixing nail is embedded into the nanoscale heat-insulating layer and the castable lining to fix the nanoscale heat-insulating layer and the castable lining.
Further, the refractory layer staples include L-shaped staples and V-shaped staples.
Furthermore, the casting material lining only receives friction force sections and mainly uses V-shaped fixing nails, the casting material lining only receives impact force sections, namely L-shaped fixing nails and V-shaped fixing nails, which are arranged according to fixed intervals and numbers, and the casting material lining receives impact force and friction force composite force sections, namely L-shaped fixing nails and V-shaped fixing nails, which are arranged according to the fixed intervals and numbers.
Compared with the prior art, the invention has the following advantages:
1. according to the castable coke tank with the heat insulation layer, the castable inner lining adopts different material proportions and different thicknesses according to different parts of the tank body, so that the stressing requirements of each section can be met, the service life of each section of castable inner lining can be unified, the castable inner lining keeps integrity in the service life, the castable inner lining is prevented from being damaged locally and further damaged at adjacent parts, and is further damaged integrally, and the price of each section of inner lining is different, compared with the castable inner lining adopting the same casting material and thickness, the castable inner lining has higher overall cost performance;
2. the refractory layer fixing nails of the castable coke tank with the heat insulation layer provided by the invention are in a combined arrangement mode of the V-shaped fixing nails and the L-shaped fixing nails, and different parts of the tank body are arranged differently, so that the integrity of the castable lining and the fit with a steel skeleton are improved greatly compared with the existing single V-shaped fixing nails.
3. According to the castable coke tank with the heat insulation layer, a layer of nano heat insulation layer is arranged between the Jiao Guangang framework and the castable lining, so that the overall heat insulation performance of the coke tank is good, the temperature of the outer wall of the coke tank is about 160 ℃, and the temperature is reduced by 100 ℃ compared with that of the existing castable coke tank in the market.
In summary, the castable type coke tank with the heat insulation layer provided by the invention solves the problems of easy damage, large heat loss, large burning loss of lining plates type coke tanks in the prior art by innovations of adding the nano-scale heat insulation layer to the castable type coke tank, changing the proportion, improving the castable performance, optimizing the arrangement form of fixing nails and the like, solves the problems of sporadic fragmentation and falling off of lining materials of the existing castable type coke tank and still small heat loss, meets the technological requirements of continuous operation of a coke oven dry quenching system, and ensures that the coke tank is stable and reliable in long-term use, low in maintenance cost and excellent in heat preservation performance.
Based on the reasons, the invention can be widely popularized in the fields of metallurgical coking and the like.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic illustration of a castable coke drum with insulation according to the present invention;
FIG. 2 is an enlarged cross-sectional view of a side wall of a castable coke drum with a heat insulating layer;
FIG. 3 is a diagram of a castable coke drum staple arrangement with insulation.
In the figure: 1. jiao Guangang skeleton; 2. a nanoscale insulating layer; 3. a castable liner; 4. a refractory layer fixing nail; 5. l-shaped fixing nails; 6. v-shaped fixing nails; 7. only the friction section; 8. a composite force section under impact force and friction force; 9. only the impact force segment.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present invention. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be clear that the dimensions of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present invention, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present invention: the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present invention.
As shown in fig. 1 and 2, the present invention provides a castable coke oven with a heat insulating layer, comprising: tank steel skeleton, nano-scale heat insulation layer, casting material lining and fire-resistant layer fixing nails;
the steel framework of the coke tank comprises a cylinder body part and a bottom gate, wherein the cylinder body part is welded into a cylinder shape by adopting a steel plate, and the bottom gate is welded into two half-round bottom gates which are opposite to each other by adopting the steel plate;
the cylinder body and the bottom gate are covered with a nanoscale heat insulation layer and a castable lining, and the nanoscale heat insulation layer and the castable lining are fixed by refractory layer fixing nails.
And one end of the fire-resistant layer fixing nail is welded to the steel framework of the coke tank, and the other end of the fire-resistant layer fixing nail is embedded into the nanoscale heat-insulating layer and the castable lining to fix the nanoscale heat-insulating layer and the castable lining.
Further, the refractory layer staples include L-shaped staples and V-shaped staples.
Furthermore, the castable lining is divided into three types according to the stress mode, wherein the three types comprise a friction force section, an impact force section, and an impact force and friction force composite section.
Furthermore, the casting material lining only receives friction force sections and mainly uses V-shaped fixing nails, the casting material lining only receives impact force sections, namely L-shaped fixing nails and V-shaped fixing nails, which are arranged according to fixed intervals and numbers, and the casting material lining receives impact force and friction force composite force sections, namely L-shaped fixing nails and V-shaped fixing nails, which are arranged according to the fixed intervals and numbers.
Further, the thickness of the nanoscale heat insulation layer is about 10mm, two layers of heat insulation layers are generally stacked by 5mm, the heat insulation layer has the capability of converting passive heat insulation into active heat insulation, the heat insulation layer is arranged between the inner layer of the castable and the steel skeleton and is not in direct contact with red coke, the heat insulation layer can ensure that the heat insulation layer does not need to have abrasion resistance and impact resistance, only needs to exert the heat insulation capability, the heat loss of the red coke in the coke tank can be greatly reduced, and the heat insulation performance of the coke tank is improved.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (5)
1. A castable coke drum with a heat insulating layer, comprising: jiao Guangang skeleton, nanoscale heat insulation layer, casting material lining and fire-resistant layer fixing nails;
the steel framework of the coke tank comprises a cylinder body part and a bottom gate, wherein the cylinder body part is welded into a cylinder shape by adopting a steel plate, and the bottom gate is welded into two half-round bottom gates which are opposite to each other by adopting the steel plate;
the cylinder body and the bottom gate are covered with a nanoscale heat insulation layer and a castable lining, and the nanoscale heat insulation layer and the castable lining are fixed by refractory layer fixing nails.
2. The castable coke drum with a heat insulation layer according to claim 1, wherein: one end of the fire-resistant layer fixing nail is welded to the steel framework of the coke tank, and the other end of the fire-resistant layer fixing nail is embedded into the nanoscale heat-insulating layer and the castable lining to fix the nanoscale heat-insulating layer and the castable lining.
3. The castable coke drum with a heat insulation layer according to claim 1, wherein: the fire-resistant layer fixing nails comprise L-shaped fixing nails and V-shaped fixing nails.
4. The castable coke drum with a heat insulation layer according to claim 1, wherein: the castable lining is divided into three types of sections according to different stress modes, wherein the sections comprise a section only subjected to friction force, a section only subjected to impact force, and a section subjected to impact force and friction force.
5. The castable coke drum with a heat insulation layer according to claim 4, wherein: the casting material lining only receives friction force section and takes V-shaped fixing nails as the main part, the casting material lining only receives impact force section L-shaped fixing nails and V-shaped fixing nails which are arranged according to fixed intervals and numbers, and the casting material lining receives impact force and friction force composite force section which is also formed by arranging L-shaped fixing nails and V-shaped fixing nails according to fixed intervals and numbers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410198672.1A CN117821088A (en) | 2024-02-22 | 2024-02-22 | Castable coke pot with heat insulation layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410198672.1A CN117821088A (en) | 2024-02-22 | 2024-02-22 | Castable coke pot with heat insulation layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117821088A true CN117821088A (en) | 2024-04-05 |
Family
ID=90524398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410198672.1A Pending CN117821088A (en) | 2024-02-22 | 2024-02-22 | Castable coke pot with heat insulation layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117821088A (en) |
-
2024
- 2024-02-22 CN CN202410198672.1A patent/CN117821088A/en active Pending
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