CN116769504B - Anchoring nozzle for ethylene cracking furnace and anchoring method - Google Patents
Anchoring nozzle for ethylene cracking furnace and anchoring method Download PDFInfo
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- CN116769504B CN116769504B CN202210240682.8A CN202210240682A CN116769504B CN 116769504 B CN116769504 B CN 116769504B CN 202210240682 A CN202210240682 A CN 202210240682A CN 116769504 B CN116769504 B CN 116769504B
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- 238000004873 anchoring Methods 0.000 title claims abstract description 156
- 238000005336 cracking Methods 0.000 title claims abstract description 37
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 239000005977 Ethylene Substances 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims description 27
- 239000007788 liquid Substances 0.000 claims abstract description 76
- 239000000463 material Substances 0.000 claims abstract description 60
- 239000007921 spray Substances 0.000 claims abstract description 21
- 239000011248 coating agent Substances 0.000 claims abstract description 19
- 238000000576 coating method Methods 0.000 claims abstract description 19
- 238000002347 injection Methods 0.000 claims description 62
- 239000007924 injection Substances 0.000 claims description 62
- 238000005245 sintering Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 239000000835 fiber Substances 0.000 description 17
- 230000000694 effects Effects 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000011449 brick Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000009991 scouring Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 108700041286 delta Proteins 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The invention discloses an anchoring nozzle for an ethylene cracking furnace, which comprises: the main body part is cylindrical, one end of the main body part is used for being connected with the liquid anchoring device, and a plurality of openings are formed in the outer wall of the main body part; the spray head part is connected with the other end of the main body part, and a spray nozzle is arranged at one end of the spray head part far away from the main body part; the nozzle part of the anchoring nozzle is provided with the nozzle, the outer wall of the main body part is also provided with a plurality of openings, the nozzle and the openings can spray materials simultaneously, an anchoring structure with a radial structure can be formed in the furnace lining, rooting anchoring is formed, and falling of coating on the surface of the furnace lining is avoided.
Description
Technical Field
The invention belongs to the technical field of furnace lining surface coating anchoring of an ethylene cracking furnace, and particularly relates to an anchoring nozzle for the ethylene cracking furnace and an anchoring method.
Background
Ethylene cracking furnaces in petrochemical industry, especially the bottom three meters, have high use temperature, have the influence of bottom burning, side burning and top burning burners and burner flame scouring, and have extremely high requirements on the furnace lining strength, so that brick wall structures are always used at the parts. The brick wall structure can resist the erosion of air flow washing and atmosphere, but has high heat conductivity, long construction period and inconvenient overall transportation, and is suitable for the development trend of modularized large-scale cracking furnaces in order to develop the ethylene cracking furnaces towards the directions of light weight and low heat conductivity, and the full-fiber furnace lining combined with the fiber furnace lining by using the high-temperature anti-scouring protection surface coating is generated. In order to ensure that the liquid anchoring material is firmly combined with the fiber furnace lining and does not fall off, the liquid anchoring material is injected into the fiber furnace lining by using a surface coating liquid anchoring device to anchor the coating on the surface of the furnace lining, and the coating is firmly anchored on the surface of the fiber furnace lining. Because the construction space of the liquid anchoring device is relatively narrow, and the traditional liquid anchoring device cannot uniformly diffuse the liquid anchoring material in the fiber furnace lining, a good rooting effect is formed, the high-temperature thermal protection coating layer on the surface of the fiber furnace lining is easy to fall off, the fiber furnace lining is washed and atomized under the flushing of flame, and potential safety hazards are generated while the heat dissipation loss is increased.
Disclosure of Invention
The invention aims at overcoming the defects in the prior art, and provides an anchoring nozzle and an anchoring method for an ethylene cracking furnace.
In order to achieve the above object, the present invention provides an anchor head for an ethylene cracking furnace, comprising:
the main body part is cylindrical, one end of the main body part is used for being connected with the liquid anchoring device, and a plurality of openings are formed in the outer wall of the main body part;
the spray head part is connected with the other end of the main body part, and one end of the spray head part, which is far away from the main body part, is provided with a spray nozzle.
Optionally, the method further comprises: and one end of the opening and closing plate is hinged with the main body part, an elastic part is connected to the opening and closing plate, and the elastic part can apply elastic force to the opening and closing plate so that the opening and closing plate seals the opening.
Optionally, the main body portion is in a straight cylinder shape, and the nozzle portion tapers from an end close to the main body portion to an end far from the main body portion.
Optionally, a fixing plate is arranged on the outer wall of the main body part, a side wing plate is arranged at one end of the opening and closing plate, the side wing plate is hinged to the fixing plate through a rotating shaft, a torsion spring is sleeved on the rotating shaft, and the torsion spring is an elastic component.
The invention also provides an anchoring method for the ethylene cracking furnace, which comprises the following steps of:
an injection cavity with a large inner end and a small outer end is arranged on a furnace lining of the ethylene cracking furnace;
inserting the anchor spray head into the injection cavity;
And injecting liquid anchoring materials into the injection cavity by utilizing the liquid anchoring device and the anchoring spray head.
Optionally, the injection cavity comprises a first part in a shape of a straight cylinder and a second part with a large inner end and a small outer end, wherein the first part is connected with the second part, and the first part can accommodate the anchoring nozzle to pass through.
Optionally, the anchor spray head is inserted into the injection cavity to a first set depth such that the anchor spray head is fully advanced into the second portion.
Optionally, after the anchoring nozzle is inserted into the injection cavity to a first set depth, the method further includes:
injecting the liquid anchoring material at a first set pressure, so that the liquid anchoring material is sprayed out at a first flow rate through the opening and the nozzle, and the injection lasts for a first set period of time;
pulling out the anchoring nozzle outwards, so that the depth of the anchoring nozzle inserted into the injection cavity is a second set depth;
Injecting the liquid anchoring material at a second set pressure, so that the liquid anchoring material is sprayed out through the opening and the nozzle at a second flow smaller than the first flow and lasts for a second set period of time;
And pulling the anchoring nozzle outwards, and injecting the liquid anchoring material at a third set pressure, so that the liquid anchoring material is sprayed out through the nozzle until the injection cavity is completely filled with the liquid anchoring material.
Optionally, the first set depth is greater than the second set depth, the first set pressure is greater than the second set pressure, and the second set pressure is greater than the third set pressure.
Optionally, after injecting the liquid anchoring material into the injection cavity by using the liquid anchoring device and the anchoring nozzle, the method further comprises:
Spraying a furnace lining surface coating;
Sintering the furnace lining surface coating and the liquid anchoring material.
The invention provides an anchoring nozzle for an ethylene cracking furnace and an anchoring method, which have the beneficial effects that:
1. The nozzle part of the anchoring nozzle is provided with a nozzle, the outer wall of the main body part is also provided with a plurality of openings, the nozzle and the openings can spray materials at the same time, an anchoring structure with a radial structure can be formed in the furnace lining, so that rooting anchoring is formed, and the falling of coating on the surface of the furnace lining is avoided;
2. The anchoring nozzle is also provided with an opening and closing plate with an elastic part, the opening and closing degree of the opening and closing plate can be controlled by controlling the injection pressure of the liquid anchoring material, the flow rate of the liquid anchoring material is further controlled, and the anchoring effect is improved;
3. according to the anchoring method, the injection cavity with the large inner end and the small outer end is formed in the furnace lining, the liquid anchoring material is injected into the injection cavity in three steps through the anchoring nozzle, the radial structure anchoring structure is formed in the injection cavity, the rooting anchoring is further formed, the liquid anchoring material is uniformly diffused in the furnace lining, and the bonding firmness of the surface coating of the furnace lining and the furnace lining is improved.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular descriptions of exemplary embodiments of the invention as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the invention.
Fig. 1 shows a schematic structure of an anchor head for an ethylene cracking furnace according to an embodiment of the present invention.
Fig. 2 shows a schematic top view of fig. 1.
Fig. 3 shows a schematic structural view of a main body portion of an anchor head for an ethylene-cracking furnace, according to an embodiment of the present invention.
Fig. 4 shows a schematic structural view of an opening and closing plate of an anchor head for an ethylene-cracking furnace according to an embodiment of the present invention.
Fig. 5 shows a flowchart of an anchoring method for an ethylene-cracking furnace, according to an embodiment of the present invention.
Fig. 6 is a schematic view showing a structure in which the anchoring nozzle is inserted into the injection cavity to a first set depth in an anchoring method for an ethylene cracking furnace according to an embodiment of the present invention.
Fig. 7 is a schematic view showing a structure in which the anchoring nozzle is inserted into the injection cavity to a second set depth in an anchoring method for an ethylene cracking furnace according to an embodiment of the present invention.
Fig. 8 shows a schematic view of an anchoring structure formed after the implementation of the anchoring method for ethylene-cracking furnaces, according to one embodiment of the invention.
Reference numerals illustrate:
1. A main body portion; 2. an opening; 3. a nozzle part; 4. a spout; 5. an opening/closing plate; 6. a fixing plate; 7. A side wing plate; 8. a rotating shaft; 9. a furnace lining; 10. an injection cavity; 11. an anchor structure; 12. a first portion; 13. a second portion; 14. coating the surface of a furnace lining; 15. and (3) a torsion spring.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the preferred embodiments of the present invention are described below, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
As shown in fig. 1 to 4, the present invention provides an anchor head for an ethylene cracking furnace, the anchor head comprising:
the liquid anchoring device comprises a main body part 1, wherein the main body part 1 is cylindrical, one end of the main body part 1 is used for being connected with the liquid anchoring device, and a plurality of openings 2 are formed in the outer wall of the main body part 1;
The nozzle part 3, the nozzle part 3 is connected with the other end of main part 1, and the one end that nozzle part 3 kept away from main part 1 is provided with spout 4.
Specifically, the liquid anchoring device adopts a conventional liquid anchoring device, and as the outer wall of the main body part 1 of the anchoring nozzle is provided with a plurality of openings 2, the nozzle part 3 is also provided with nozzles 4, and the anchoring structure of a radial structure can be formed in the furnace lining when the liquid anchoring material is injected through the anchoring nozzle, so that rooting anchoring is formed, the liquid anchoring material is uniformly diffused in the furnace lining, and the bonding firmness of the surface coating of the furnace lining and the furnace lining is improved.
Optionally, the method further comprises: the opening and closing plate 5, the one end of opening and closing plate 5 is articulated with main part 1, is connected with elastomeric element on the opening and closing plate 5, and elastomeric element can apply elasticity to opening and closing plate 5 makes opening and closing plate 5 shutoff opening 2.
Specifically, the opening and closing plate with the elastic component can control the opening and closing degree of the opening and closing plate 5 by controlling the injection pressure of the liquid anchoring material, thereby controlling the flow rate of the liquid anchoring material and improving the anchoring effect.
Alternatively, the main body 1 is straight cylindrical, and the nozzle 3 tapers from an end near the main body 1 to an end far from the main body 1.
Specifically, the straight cylindrical main body part 1 facilitates the insertion of the anchoring nozzle into the injection cavity, and the tapered nozzle part 3 is beneficial to the ejection of the liquid anchoring material at the nozzle 4, so that the residue is reduced.
Optionally, a fixing plate 6 is arranged on the outer wall of the main body part 1, a side wing plate 7 is arranged at one end of the opening and closing plate 5, the side wing plate 7 is hinged on the fixing plate 6 through a rotating shaft 8, a torsion spring 15 is sleeved on the rotating shaft 8, and the torsion spring 15 is an elastic component.
Specifically, the torsion spring 15 is used as an elastic member, the opening and closing plate 5 is applied with an elastic force for blocking the opening 2, the size of the elastic force can be determined by the torsion spring 15, and a proper torsion spring 15 can be selected according to actual needs.
In this embodiment, the main body 1 and the opening/closing plate 5 are made of transparent hard plastic; the nozzle part 3 is made of transparent soft plastic.
In the embodiment, the cross section of the main body part 1 is a regular quadrangle, and the four corners are provided with chamfers, so that the phase injection cavity is convenient to insert; openings 2 and opening and closing plates 5 are arranged on four sides of the main body part 1, and the openings 2 are uniformly distributed in the circumferential direction, so that the injected liquid anchoring material is more uniform; in other examples, the cross section of the main body 1 may have a variety of tubular structures such as regular octagons and regular dodecagons, and the number of the openings 2 and the shutter plates 5 may be adjusted accordingly.
As shown in fig. 5 to 8, the present invention also provides an anchoring method for an ethylene cracking furnace, using the above-mentioned anchoring nozzle for an ethylene cracking furnace, the method comprising:
An injection cavity 10 with a large inner end and a small outer end is arranged on a furnace lining 9 of the ethylene cracking furnace;
inserting an anchor spray head into the injection cavity 10;
Liquid anchoring material is injected into the injection chamber 10 by means of a liquid anchoring device and an anchoring nozzle.
Specifically, an injection cavity 10 with a large inner end and a small outer end is arranged on a furnace lining 9 of the ethylene cracking furnace, so that the liquid anchoring material injected into the injection cavity 10 can be firmly solidified in the injection cavity 10 and is not easy to fall off; the anchoring nozzle is provided with the opening 2 and the nozzle 4, so that when the liquid anchoring device injects the liquid anchoring material into the injection cavity 10 through the anchoring nozzle, the anchoring structure 11 with a radial structure can be formed in the injection cavity 10 with a large inner end and a small outer end, and then rooting anchoring is formed, and the anchoring effect is improved.
In this embodiment, the furnace lining 9 is a fiber furnace lining, the longitudinal section of the injection cavity 10 is in an inverted trapezoid shape, the depth is H, the cross section of the injection cavity 10 is in a regular quadrilateral shape, the side length of the outer cross section of the injection cavity 10 is S1, and the side length of the inner cross section of the injection cavity 10 is S2.
Alternatively, the injection chamber 10 comprises a first part 12 in the shape of a straight cylinder and a second part 13 with a larger inner end and a smaller outer end, the first part 12 being connected to the second part 13, the first part 12 being able to accommodate the passage of the anchoring nozzle.
Specifically, the inner peripheral shape of the first portion 12 is matched with the outer peripheral shape of the main body portion 1 of the anchor head, facilitating insertion of the anchor head.
Alternatively, the anchor spray is inserted into the injection cavity 10 to a first set depth such that the anchor spray is fully advanced into the second portion 13.
Specifically, the second portion 13 is used to form the radial anchoring structure 11 and thus the rooting anchor.
Optionally, after inserting the anchoring nozzle into the injection cavity 10 to a first set depth, the method further comprises:
injecting the liquid anchoring material at a first set pressure, so that the liquid anchoring material is sprayed out through the opening 2 and the nozzle 4 at a first flow rate for a first set duration;
pulling out the anchoring nozzle outwards, so that the depth of the anchoring nozzle inserted into the injection cavity 10 is a second set depth;
Injecting the liquid anchoring material at a second set pressure, so that the liquid anchoring material is sprayed out through the opening 2 and the nozzle 4 at a second flow smaller than the first flow and lasting for a second set period of time;
The anchoring nozzle is pulled out outwards, and the injection of the liquid anchoring material is performed at a third set pressure, so that the liquid anchoring material is sprayed out through the spray nozzle 4 until the injection cavity 10 is completely filled with the liquid anchoring material.
In this embodiment, when the insertion depth of the anchoring nozzle is the first set depth H1 and the injection pressure of the liquid anchoring material is the first set pressure P1, the opening and closing plate 5 is opened under the action of the injection pressure, the liquid anchoring material flows out through the opening 2 and the nozzle 4, and the injection time is the first set duration T1, so that the liquid anchoring material forms a radial structure in the injection cavity 10 inside the fiber furnace lining; when the anchoring nozzle is gradually pulled out to the second set depth H2, the injection pressure of the liquid anchoring material is the second set pressure P2, the opening and closing plate is limited by the torsion spring 15 to be gradually closed in the injection cavity 10 inside the fiber furnace lining, the liquid anchoring material mainly flows out through the nozzle 4, a small amount of liquid anchoring material flows out of the opening 2 to uniformly transition the opening, the injection time is the second set time length T2, and the anchoring material forms a continuous anchoring structure 11 in the injection cavity 10 inside the fiber furnace lining; the anchoring nozzle is continuously pulled out of the injection cavity 10 of the fiber furnace lining, and the injection pressure of the liquid anchoring material is maintained at the third set pressure P3 in the pulling-out process until the liquid anchoring material can completely cover the open pore surface of the injection cavity 10 of the fiber furnace lining, so that the injection cavity 10 is filled; at this time, the anchoring is completed, the surface coating 14 of the furnace lining can be sprayed on the surface of the fiber furnace lining which has undergone the liquid anchoring operation, and after high-temperature sintering, the surface coating 14 of the furnace lining is tightly combined with the fiber furnace lining through the radial anchoring structure 11 formed by the liquid anchoring material in the injection cavity 10.
Optionally, the first set depth is greater than the second set depth, the first set pressure is greater than the second set pressure, and the second set pressure is greater than the third set pressure.
In this embodiment, H1 is 90% of H and H2 is 40% of H; p2 is 60% of P1, and P3 is 30% of P1; t2 is 80% of T1, S1 is 50% of S2; the length L2 of the nozzle part 3 is 30% of the length L of the main body part 1, and the opening and closing plate 5 and the opening 2 length L1 are 30% of the length L of the main body part 1; the thickness delta 2 of the opening and closing plate 5 is 95% of the wall thickness delta 1 of the main body part 1; the width Y1 of the shutter 5 is 75% of the side length Y of the main body 1, and the radius R of the spout 4 is 35% of the side length Y of the main body 1.
Optionally, after injecting the liquid anchoring material into the injection cavity 10 by using the liquid anchoring device and the anchoring nozzle, the method further includes:
spraying furnace lining surface paint 14;
the lining surface coating 14 and the liquid anchor material are sintered.
In summary, when the anchoring method for the ethylene cracking furnace is implemented, the anchoring nozzle for the ethylene cracking furnace adopts the mode that the end nozzle 4 and the side opening 2 are discharged together, so that the liquid anchoring material is uniformly diffused in the furnace lining 9 to form a good rooting effect, the bonding firmness of the furnace lining surface coating 14 (high-temperature thermal protection coating) and the furnace lining 9 (fiber furnace lining) is improved, and the safety is enhanced while the heat dissipation loss is reduced. The long-period stable operation of the ethylene cracking furnace can be ensured, and good economic benefits are achieved; meanwhile, the rooting effect of the liquid anchoring material is improved, the dosage of the liquid anchoring material can be reduced, and the liquid anchoring material has good economic benefit.
The foregoing description of embodiments of the invention has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described.
Claims (7)
1. An anchor head for an ethylene cracking furnace, the anchor head comprising:
the main body part is cylindrical, one end of the main body part is used for being connected with the liquid anchoring device, and a plurality of openings are formed in the outer wall of the main body part;
The spray head part is connected with the other end of the main body part, and a spray nozzle is arranged at one end of the spray head part far away from the main body part;
the opening and closing plate is hinged with the main body part at one end, and is connected with an elastic part which can apply elastic force to the opening and closing plate so that the opening and closing plate seals the opening;
The main body part is in a straight cylinder shape, and the nozzle part is gradually reduced from one end close to the main body part to one end far away from the main body part;
The outer wall of the main body part is provided with a fixed plate, one end of the opening and closing plate is provided with a side wing plate, the side wing plate is hinged on the fixed plate through a rotating shaft, the rotating shaft is sleeved with a torsion spring, and the torsion spring is an elastic component.
2. An anchoring method for an ethylene cracking furnace, using the anchoring nozzle for an ethylene cracking furnace according to claim 1, characterized by comprising:
an injection cavity with a large inner end and a small outer end is arranged on a furnace lining of the ethylene cracking furnace;
inserting the anchor spray head into the injection cavity;
And injecting liquid anchoring materials into the injection cavity by utilizing the liquid anchoring device and the anchoring spray head.
3. The anchoring method for ethylene cracking furnaces according to claim 2, wherein said injection chamber comprises a first portion having a straight cylindrical shape and a second portion having a larger inner end and a smaller outer end, the first portion being connected to the second portion, said first portion being capable of receiving said anchor head therethrough.
4. The anchoring method for ethylene cracking furnaces according to claim 3, wherein said anchoring nozzle is inserted into said injection cavity to a first set depth such that said anchoring nozzle is fully entered into said second section.
5. The anchoring method for an ethylene cracking furnace according to claim 4, wherein after said anchoring nozzle is inserted into said injection cavity to a first set depth, further comprising:
injecting the liquid anchoring material at a first set pressure, so that the liquid anchoring material is sprayed out at a first flow rate through the opening and the nozzle, and the injection lasts for a first set period of time;
pulling out the anchoring nozzle outwards, so that the depth of the anchoring nozzle inserted into the injection cavity is a second set depth;
Injecting the liquid anchoring material at a second set pressure, so that the liquid anchoring material is sprayed out through the opening and the nozzle at a second flow smaller than the first flow and lasts for a second set period of time;
And pulling the anchoring nozzle outwards, and injecting the liquid anchoring material at a third set pressure, so that the liquid anchoring material is sprayed out through the nozzle until the injection cavity is completely filled with the liquid anchoring material.
6. The anchoring method for an ethylene cracking furnace according to claim 5, wherein said first set depth is greater than said second set depth, said first set pressure is greater than said second set pressure, and said second set pressure is greater than said third set pressure.
7. The anchoring method for an ethylene cracking furnace according to claim 3, further comprising, after injecting a liquid anchor into said injection chamber by means of a liquid anchor and said anchor head:
Spraying a furnace lining surface coating;
Sintering the furnace lining surface coating and the liquid anchoring material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210240682.8A CN116769504B (en) | 2022-03-10 | 2022-03-10 | Anchoring nozzle for ethylene cracking furnace and anchoring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210240682.8A CN116769504B (en) | 2022-03-10 | 2022-03-10 | Anchoring nozzle for ethylene cracking furnace and anchoring method |
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| Publication Number | Publication Date |
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| CN116769504A CN116769504A (en) | 2023-09-19 |
| CN116769504B true CN116769504B (en) | 2024-04-23 |
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| CN202210240682.8A Active CN116769504B (en) | 2022-03-10 | 2022-03-10 | Anchoring nozzle for ethylene cracking furnace and anchoring method |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205090803U (en) * | 2015-11-02 | 2016-03-16 | 武汉钢铁(集团)公司 | Heating furnace furnace lining structure |
| CN105778977A (en) * | 2016-03-29 | 2016-07-20 | 四川科达节能技术有限公司 | Ethylene cracking furnace |
| CN112378252A (en) * | 2020-11-10 | 2021-02-19 | 山东鲁阳节能材料股份有限公司 | Construction method for fiber furnace lining surface of ethylene cracking furnace |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7404274B2 (en) * | 2003-11-12 | 2008-07-29 | Hayes John T | Masonry wall anchoring system |
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- 2022-03-10 CN CN202210240682.8A patent/CN116769504B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205090803U (en) * | 2015-11-02 | 2016-03-16 | 武汉钢铁(集团)公司 | Heating furnace furnace lining structure |
| CN105778977A (en) * | 2016-03-29 | 2016-07-20 | 四川科达节能技术有限公司 | Ethylene cracking furnace |
| CN112378252A (en) * | 2020-11-10 | 2021-02-19 | 山东鲁阳节能材料股份有限公司 | Construction method for fiber furnace lining surface of ethylene cracking furnace |
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