CN107339890B - Lining device of gasification furnace hearth - Google Patents

Lining device of gasification furnace hearth Download PDF

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Publication number
CN107339890B
CN107339890B CN201710710095.XA CN201710710095A CN107339890B CN 107339890 B CN107339890 B CN 107339890B CN 201710710095 A CN201710710095 A CN 201710710095A CN 107339890 B CN107339890 B CN 107339890B
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China
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layer
brick layer
aluminum zirconium
area
brick
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CN107339890A (en
Inventor
段少鹏
郑军峰
刘会林
邓俊杰
颜辉
狄成立
孙志泳
赵俊峰
禹生兵
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Sinosteel Luonai Technology Co ltd
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Sinosteel Luonai Technology Co ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/04—Casings; Linings; Walls; Roofs characterised by the form, e.g. shape of the bricks or blocks used
    • F27D1/045—Bricks for lining cylindrical bodies, e.g. skids, tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/10—Monolithic linings; Supports therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/04—Casings; Linings; Walls; Roofs characterised by the form, e.g. shape of the bricks or blocks used
    • F27D1/045—Bricks for lining cylindrical bodies, e.g. skids, tubes
    • F27D2001/047—Lining of cylindrical vessels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
    • F27M2003/00—Type of treatment of the charge
    • F27M2003/15—Vaporisation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)

Abstract

The invention discloses a lining device of a gasification furnace hearth, which is arranged in the gasification furnace and sequentially comprises a vault plug opening area, a vault ball cone section refractory area, a vertical furnace wall refractory area, a cone bottom refractory area and a slag opening part from top to bottom; the vault is filled in mouthful district including installing first chromium aluminium zirconium brick layer and the light brick layer on drum is filled in mouthful inner wall, and first chromium aluminium zirconium brick layer sets up the inlayer at vault is filled in mouthful district, and the light brick layer sets up the skin at first chromium aluminium zirconium brick layer, and the middle part in vault is filled in mouthful district is provided with a through-hole, and the inside top of through-hole is provided with first hollow sphere brick layer. The lining device of the gasification furnace hearth can realize the purpose of expanding production under the condition of not increasing the gasification furnace, and simultaneously, the bottleneck problem that the whole service life of the gasification furnace is influenced due to the short local service life of refractory bricks can be solved, so that the construction efficiency of the lining device is improved, the quality of a masonry body is improved, the maintenance cost is reduced, and the economic benefit of enterprises is improved.

Description

Lining device of gasification furnace hearth
Technical Field
The invention belongs to the technical field of design of refractory lining of a gasification furnace, and particularly relates to a lining device of a hearth of the gasification furnace.
Background
The production and operation of the industries such as metallurgy, building materials, chemical industry, machinery, electric power and the like are not separated from that of various thermal kilns, the service life and the functions of the thermal kilns depend on the quality and the structure of a lining material to a great extent, and the lining material serving the high-temperature kilns is an essential basic material for ensuring the operation and the economic development of the industries. Along with the rapid development of economy, resources and energy are rapidly consumed, and the sustainable development of socioeconomic performance brings higher requirements to high-temperature furnace lining materials serving a kiln and application technology thereof: the high-temperature furnace lining material is required to have long service life and safe operation of a high-temperature furnace, and the furnace lining material is required to have the function of energy conservation.
The refractory material is an inorganic nonmetallic material with the refractoriness not lower than 1580 ℃, and the refractoriness refers to the temperature of the conical sample of the refractory material, which resists the action of high temperature without softening and melting down under the condition of no load. The gasification process is operated in the 1204-1538 ℃ range, and a refractory lining must be installed to prevent the vessel shell from contacting the high temperature syngas and ash.
The existing gasifier refractory lining has the problems that due to structural design reasons, the local service life of refractory bricks at the contact part of a gasifier vault and a cylinder body is short and the whole service life of the gasifier is influenced due to high temperature, so that huge economic loss is caused for enterprises, and the production of the enterprises is also influenced.
Disclosure of Invention
In order to solve the technical problems, the invention provides the lining device of the gasification furnace hearth, which can prolong the service life of the refractory material by changing the lining structure, effectively relieve the scouring of coal slurry and air flow to the refractory material, ensure the air tightness of the whole vault, prevent blowby gas and play a role in protecting the gasification furnace.
The technical scheme adopted by the invention is as follows: the lining device of the gasification furnace hearth is arranged in the gasification furnace and sequentially comprises a vault plug opening area, a vault ball cone section refractory area, a vertical furnace wall refractory area, a cone bottom refractory area and a slag opening part from top to bottom;
the vault plug area comprises a first chromium aluminum zirconium brick layer and a light brick layer which are arranged on the inner wall of the cylinder plug, wherein the first chromium aluminum zirconium brick layer is arranged on the inner layer of the vault plug area, the light brick layer is arranged on the outer layer of the first chromium aluminum zirconium brick layer, a through hole is formed in the middle of the vault plug area, a first hollow ball brick layer is arranged above the inside of the through hole, and a plug brick is arranged below the hollow ball precast block;
the arch top ball cone section fire-resistant area is of a ball cone structure and is provided with four layers of fire-resistant materials, a first compressible material layer, a first pouring material layer, a first chrome steel jade brick layer and a second chrome aluminum zirconium brick layer are sequentially arranged from outside to inside, and the second chrome aluminum zirconium brick layer is in smooth transition connection with the first chrome aluminum zirconium brick layer arranged in the arch top plug opening area;
the vertical furnace wall refractory area is arranged at the vertical cylinder part of the gasification furnace, four layers are arranged in total, a second compressible material layer, a second hollow sphere brick layer, a second chrome steel jade brick layer and a third chrome aluminum zirconium brick layer are sequentially arranged from outside to inside, the third chrome aluminum zirconium brick layer is in smooth transition connection with the second chrome aluminum zirconium brick layer arranged at the vault sphere cone section refractory area, and a longitudinal expansion joint is arranged on the third chrome aluminum zirconium brick layer;
the cone bottom refractory area is arranged at the bottom of the gasification furnace and comprises a second castable layer contacted with the cone bottom and a fourth chromium aluminum zirconium brick layer arranged above the castable layer;
the slag hole part is connected with the cone bottom refractory area, a fifth chromium aluminum zirconium brick layer is arranged at the slag hole part, and a second pouring material layer is arranged between the fifth chromium aluminum zirconium brick layer and the furnace wall.
Four burner part fire-resistant areas are further arranged around the vertical furnace wall fire-resistant area, the fire-facing surface and the backing layer of the burner part fire-resistant areas are sixth chromium aluminum zirconium brick layers, the outer layers are third chromium steel jade brick layers, and the purpose of the arrangement is to improve the service life of the wear-resistant material and avoid abrasion when filling materials by utilizing the characteristic of good wear resistance of the third chromium steel jade brick layers.
The plug brick is a chromium aluminum zirconium precast block, and is of a bottle plug structure with taper, so that the plug brick is convenient to take out and is beneficial to sealing, and the phenomenon of gas channeling can be effectively prevented.
The vertical furnace wall fire-resistant area is internally provided with the brick supporting frame and the rib plates, and the periphery of the brick supporting frame and the rib plates is coated with the fire-resistant fiber material layer, so that the purpose of the arrangement is to facilitate the longitudinal integral expansion of the cylinder body to the fire brick, effectively relieve the longitudinal stress, and simultaneously facilitate the replacement of the fire-resistant material brick.
The vertical furnace wall refractory area is also provided with a thermocouple refractory area, the thermocouple refractory area comprises a long elliptical hole refractory brick for preventing the lower refractory material from generating thermal expansion to shear the thermocouple at high temperature, and a mullite fiber blanket for preventing gas channeling is arranged inside the long elliptical hole refractory brick for solving the problem that the steel shell of the thermocouple area is easy to overtemperature.
The first hollow sphere brick layer and the second hollow sphere brick layer are both aluminum oxide hollow sphere bricks.
The first chromium aluminum zirconium brick layer, the second chromium aluminum zirconium brick layer, the third chromium aluminum zirconium brick layer, the fourth chromium aluminum zirconium brick layer, the fifth chromium aluminum zirconium brick layer and the sixth chromium aluminum zirconium brick layer are all Cr90 chromium aluminum zirconium bricks and are fire facing bricks.
The first chrome steel jade brick layer and the second chrome steel jade brick layer are both Cr12 chrome steel jade bricks.
The first castable layer and the second castable layer are both Cr12 chrome steel jade castable.
The lining device of the gasification furnace hearth adopts a spherical cone four-layer design structure, the spherical cone structure is convenient to construct, the quality of masonry is guaranteed, wherein a thickening type design with the best practical use effect of the prior multi-nozzle gasification furnace is adopted for a second chromium aluminum zirconium brick layer of a fire surface layer, the service life of the spherical cone refractory region of the arch can be effectively prolonged, the second chromium aluminum zirconium brick layer and a first chromium steel jade brick layer are built by staggered joints, the air tightness of the whole spherical cone refractory region of the arch can be better ensured, blow-by is prevented, the arch stopper region adopts a stopper brick with a tapered bottle stopper structure, the sealing is convenient to take out and is beneficial to sealing, the blow-by is effectively prevented, and the refractory brick at the lower part of the arch stopper region is widened because the thinnest part of the arch stopper region is the shell head welding part and the shell head hot spot is prevented.
The vault plug opening area comprises a first chromium aluminum zirconium brick layer and a light brick layer which are arranged on the inner wall of the cylinder plug opening, wherein the first chromium aluminum zirconium brick layer is arranged on the inner layer of the vault plug opening area, the light brick layer is arranged on the outer layer of the first chromium aluminum zirconium brick layer, a through hole is formed in the middle of the vault plug opening area, a first hollow ball brick layer is arranged above the inside of the through hole, and plug opening bricks are arranged below the hollow ball precast blocks; the purpose of this arrangement is: the structure can effectively reduce the temperature of the outer shell and buffer the longitudinal thermal stress and the longitudinal thermal expansion of the refractory material at high temperature.
The arch crown ball cone section fire-resistant area is of a ball cone structure and is provided with four layers of fire-resistant materials, a first compressible material layer, a first pouring material layer, a first chrome steel jade brick layer and a second chrome aluminum zirconium brick layer are sequentially arranged from outside to inside, and the second chrome aluminum zirconium brick layer is in smooth transition connection with the first chrome aluminum zirconium brick layer arranged in the arch crown plug opening area; the purpose of this arrangement is: the first compressible material layer is used for buffering and absorbing longitudinal thermal stress of the vault refractory material and thermal expansion of the refractory material at high temperature on the inner wall of the steel shell.
The vertical furnace wall refractory area is arranged at a vertical cylinder part of the gasification furnace, four layers are arranged in total, a second compressible material layer, a second hollow sphere brick layer, a second chrome steel jade brick layer and a third chrome aluminum zirconium brick layer are sequentially arranged from outside to inside, the third chrome aluminum zirconium brick layer is in smooth transition connection with the second chrome aluminum zirconium brick layer arranged at the vault sphere cone section refractory area, and a longitudinal expansion joint is arranged on the third chrome aluminum zirconium brick layer; the purpose of this arrangement is: longitudinal thermal stresses of the refractory material in the refractory region of the vertical furnace wall and thermal expansion of the refractory material at high temperatures are absorbed.
The cone bottom refractory area is arranged at the bottom of the gasification furnace and comprises a second castable layer contacted with the cone bottom and a fourth chromium aluminum zirconium brick layer arranged above the castable layer; the purpose of this arrangement is: the cone bottom refractory area is a reaction chamber bottom component and is used for collecting slag/carbon, forming synthesis gas to recycle in the reaction chamber, the use environment of the part is harsh, the part is subjected to the impact of flame and the scouring and erosion of liquid slag at high temperature, the refractory material is damaged mainly by the scouring and erosion of the liquid slag, so a fourth chromium aluminum zirconium brick layer is arranged on a cone bottom working surface, a high-strength and good-erosion-resistance bulk density is more than or equal to 2.95g/cm is arranged on a lower non-working surface, and Cr is arranged on a lower non-working surface 2 O 3 +Al 2 O 3 ≥92%，Cr 2 O 3 The second castable layer with the content of more than or equal to 12 percent has stronger slag erosion resistance and better volume stability, does not deform at high temperature, and is more beneficial to improving the integral air tightness and the safety coefficient of the gasifier.
The slag hole part is connected with the cone bottom refractory area, a fifth chromium aluminum zirconium brick layer is arranged at the slag hole part, and a second castable layer is arranged between the fifth chromium aluminum zirconium brick layer and the furnace wall; the purpose of this arrangement is: the slag hole part is a bottleneck area for discharging slag and high-temperature gas out of the combustion chamber, slag hole bricks are eroded and corroded particularly severely, and steel shell components such as a brick supporting frame and the like at the bottom of the protection cone are more facilitated by adopting the second pouring material layer.
The invention has the beneficial effects that: the technical scheme provides the lining device of the gasification furnace hearth, which has simple, scientific and reasonable design structure and convenient use; the method can realize the purpose of expanding production under the condition of not increasing the gasifier, and simultaneously, the bottleneck problem that the whole service life of the gasifier is influenced due to the short local service life of refractory bricks can be solved, so that the construction efficiency of the lining device is improved, the quality of masonry can be improved, the maintenance cost is reduced, and the economic benefit of enterprises is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is an enlarged fragmentary view of the dome plug region of the present invention;
FIG. 3 is an enlarged partial view of the refractory area of the dome cone section of the present invention;
FIG. 4 is a vertical furnace wall refractory section of the present invention;
FIG. 5 is a view showing the construction of the cone bottom refractory block and slag notch refractory block of the present invention;
FIG. 6 is an enlarged view of a portion of the burner section refractory area of the present invention;
FIG. 7 is an enlarged view of a portion of the thermocouple refractory region of the present invention;
FIG. 8 is an enlarged view of a portion of the refractory area of a vertical furnace wall of the present invention.
The marks in the figure: 1. a dome plug region; 101. a first chromium aluminum zirconium brick layer; 102. a light brick layer; 103. a first layer of hollow sphere bricks; 104. a brick for plugging;
2. a dome cone section refractory zone; 201. a first compressible layer; 202. a first castable layer; 203. a first chrome steel jade brick layer; 204. a second chromium aluminum zirconium brick layer;
3. a vertical furnace wall refractory section; 301. a second compressible layer; 302. a second hollow sphere brick layer; 303. a second chrome steel jade brick layer; 304. a third chromium aluminum zirconium brick layer; 305. an expansion joint; 306. a brick support; 307. rib plates;
4. a cone bottom refractory area; 401. a second castable layer; 402. a fourth chromium aluminum zirconium brick layer;
5. a slag port part; 501. a fifth chromium aluminum zirconium brick layer;
6. a burner section refractory region; 601. a sixth chromium aluminum zirconium brick layer; 602. a third chrome steel jade brick layer;
7. a thermocouple refractory section; 701. elongated oval-hole refractory bricks; 702. mullite fiber blanket.
Detailed Description
The following describes the embodiments of the present invention in further detail with reference to the drawings.
As shown in the figure, the lining device of the gasification furnace hearth is arranged in the gasification furnace and sequentially comprises a vault plug opening area 1, a vault ball cone section refractory area 2, a vertical furnace wall refractory area 3, a cone bottom refractory area 4 and a slag opening part 5 from top to bottom;
the vault plug opening area 1 comprises a first chromium aluminum zirconium brick layer 101 and a light brick layer 102 which are arranged on the inner wall of the cylinder plug opening, wherein the first chromium aluminum zirconium brick layer 101 is arranged on the inner layer of the vault plug opening area 1, the light brick layer 102 is arranged on the outer layer of the first chromium aluminum zirconium brick layer 101, a through hole is formed in the middle of the vault plug opening area 1, a first hollow ball brick layer 103 is arranged above the inside of the through hole, and a plug opening brick 104 is arranged below a hollow ball precast block;
the dome ball cone section refractory zone 2 is of a ball cone structure and is provided with four layers of refractory materials, a first compressible material layer 201, a first pouring material layer 202, a first chrome steel jade brick layer 203 and a second chrome aluminum zirconium brick layer 204 are sequentially arranged from outside to inside, and the second chrome aluminum zirconium brick layer 204 is in smooth transition connection with the first chrome aluminum zirconium brick layer 101 arranged in the dome plug mouth zone 1;
the vertical furnace wall refractory area 3 is arranged at the vertical cylinder part of the gasification furnace, four layers are arranged in total, a second compressible material layer 301, a second hollow sphere brick layer 302, a second chrome steel jade brick layer 303 and a third chrome aluminum zirconium brick layer 304 are sequentially arranged from outside to inside, the third chrome aluminum zirconium brick layer 304 is in smooth transition connection with the second chrome aluminum zirconium brick layer 204 arranged at the vault sphere cone section refractory area 2, and a longitudinal expansion joint 305 is arranged on the third chrome aluminum zirconium brick layer 304;
the cone bottom refractory zone 4 is arranged at the bottom of the gasification furnace and comprises a second castable layer 401 contacted with the cone bottom and a fourth chromium aluminum zirconium brick layer 402 arranged above the castable layer;
the slag port part 5 is connected with the cone bottom refractory area 4, the slag port part 5 is provided with a fifth chromium aluminum zirconium brick layer 501, and a second castable layer 401 is arranged between the fifth chromium aluminum zirconium brick layer 501 and the furnace wall.
Four burner part fire-resistant areas 6 are further arranged around the vertical furnace wall fire-resistant area 3, the fire-facing surface and the backing layer of the burner part fire-resistant areas 6 are sixth chrome aluminum zirconium brick layers 601, the outer layers are third chrome steel jade brick layers 602, and the purpose of the arrangement is to improve the service life of the wear-resistant material and avoid abrasion when filling materials by utilizing the characteristic of good wear resistance of the third chrome steel jade brick layers 602.
The stopper brick 104 is a chromium aluminum zirconium precast block, and the stopper brick 104 is of a bottle stopper structure with taper, so that the stopper brick 104 is convenient to take out and is beneficial to sealing, and the phenomenon of gas channeling can be effectively prevented.
The brick supporting frame 306 and the rib plates 307 are arranged in the vertical furnace wall fire-resistant area 3, and the periphery of the brick supporting frame 306 and the rib plates 307 is coated with a fire-resistant fiber material layer, so that the purpose of the arrangement is that the longitudinal integral expansion of the cylinder body to the fire brick can be facilitated, the longitudinal stress can be effectively relieved, and meanwhile, the replacement of the fire-resistant material brick can be facilitated. The vertical furnace wall fire-resistant zone 3 is also provided with a thermocouple fire-resistant zone 7, the thermocouple fire-resistant zone 7 comprises a long elliptical hole refractory brick 701 for preventing the lower fire-resistant material from generating thermal expansion at high temperature and shearing the thermocouple, and a mullite fiber blanket 702 for preventing gas channeling is arranged in the long elliptical hole refractory brick 701 so as to solve the problem that the steel shell of the thermocouple zone is easy to overtemperature. The first layer 103 and the second layer 302 are both alumina hollow sphere bricks.
The first chromium aluminum zirconium brick layer 101, the second chromium aluminum zirconium brick layer 204, the third chromium aluminum zirconium brick layer 304, the fourth chromium aluminum zirconium brick layer 402, the fifth chromium aluminum zirconium brick layer 501 and the sixth chromium aluminum zirconium brick layer 601 are all Cr90 chromium aluminum zirconium bricks and are all fire-facing bricks.
The first chrome steel jade brick layer 203 and the second chrome steel jade brick layer 303 are both Cr12 chrome steel jade bricks.
The first casting material layer 202 and the second casting material layer 401 are both Cr12 chrome steel jade casting materials.
The lining device of the gasification furnace hearth adopts a spherical cone four-layer design structure for the arch top spherical cone section refractory area 2, the spherical cone structure is convenient to construct, the masonry quality is guaranteed, wherein the second chromium aluminum zirconium brick layer 204 of the fire surface layer adopts the thickening type design with the best practical use effect of the prior multi-nozzle gasification furnace, the service life of the arch top spherical cone section refractory area 2 can be effectively prolonged, the second chromium aluminum zirconium brick layer 204 and the first chromium steel jade brick layer 203 are built by staggered joint, the air tightness of the whole arch top spherical cone section refractory area 2 can be better ensured, the bottle plug is prevented, the arch top plug area 1 adopts the plug brick 104 with a taper structure, the bottle plug is conveniently taken out, the sealing is facilitated, the blow-by is effectively prevented, and the lower part of the arch top plug area 1 is widened due to the thinnest part of the arch top plug area 1 and the shell head welding part, and hot spots of the shell are prevented.

Claims (6)

1. A lining device of a gasification furnace hearth, which is characterized in that: the lining device is arranged in the gasification furnace and sequentially comprises a vault plug opening area, a vault sphere cone section refractory area, a vertical furnace wall refractory area, a cone bottom refractory area and a slag opening part from top to bottom;
the vault plug area comprises a first chromium aluminum zirconium brick layer and a light brick layer which are arranged on the inner wall of the cylinder plug, wherein the first chromium aluminum zirconium brick layer is arranged on the inner layer of the vault plug area, the light brick layer is arranged on the outer layer of the first chromium aluminum zirconium brick layer, a through hole is formed in the middle of the vault plug area, a first hollow ball brick layer is arranged above the inside of the through hole, and a plug brick is arranged below the hollow ball precast block;
the arch top ball cone section fire-resistant area is of a ball cone structure and is provided with four layers of fire-resistant materials, a first compressible material layer, a first pouring material layer, a first chrome steel jade brick layer and a second chrome aluminum zirconium brick layer are sequentially arranged from outside to inside, and the second chrome aluminum zirconium brick layer is in smooth transition connection with the first chrome aluminum zirconium brick layer arranged in the arch top plug opening area;
the vertical furnace wall refractory area is arranged at the vertical cylinder part of the gasification furnace, four layers are arranged in total, a second compressible material layer, a second hollow sphere brick layer, a second chrome steel jade brick layer and a third chrome aluminum zirconium brick layer are sequentially arranged from outside to inside, the third chrome aluminum zirconium brick layer is in smooth transition connection with the second chrome aluminum zirconium brick layer arranged at the vault sphere cone section refractory area, and a longitudinal expansion joint is arranged on the third chrome aluminum zirconium brick layer;
the cone bottom refractory area is arranged at the bottom of the gasification furnace and comprises a second castable layer contacted with the cone bottom and a fourth chromium aluminum zirconium brick layer arranged above the castable layer;
the slag port part is connected with the cone bottom refractory area, a fifth chromium aluminum zirconium brick layer is arranged at the slag port part, and a second castable layer is arranged between the fifth chromium aluminum zirconium brick layer and the furnace wall;
four burner part fire-resistant areas are arranged around the vertical furnace wall fire-resistant area, the fire-facing surface and the backing layer of the burner part fire-resistant areas are sixth chromium aluminum zirconium brick layers, and the outer layer is third chromium steel jade brick layers;
a brick supporting frame and a rib plate are arranged in the vertical furnace wall fire-resistant area, and fire-resistant fiber material layers are coated around the brick supporting frame and the rib plate;
the vertical furnace wall fire-resistant area is also provided with a thermocouple fire-resistant area, the thermocouple fire-resistant area comprises a long elliptical hole refractory brick for preventing the lower refractory material from generating thermal expansion at high temperature and shearing the thermocouple, and a mullite fiber blanket for preventing gas channeling is arranged inside the long elliptical hole refractory brick.
2. A lining apparatus for a gasification furnace hearth according to claim 1, wherein: the stopper brick is a chromium aluminum zirconium precast block, and is in a bottle stopper structure with taper.
3. A lining apparatus for a gasification furnace hearth according to claim 1, wherein: the first hollow sphere brick layer and the second hollow sphere brick layer are both aluminum oxide hollow sphere bricks.
4. A lining apparatus for a gasification furnace hearth according to claim 1, wherein: the first chromium aluminum zirconium brick layer, the second chromium aluminum zirconium brick layer, the third chromium aluminum zirconium brick layer, the fourth chromium aluminum zirconium brick layer, the fifth chromium aluminum zirconium brick layer and the sixth chromium aluminum zirconium brick layer are all Cr90 chromium aluminum zirconium bricks and are fire facing bricks.
5. A lining apparatus for a gasification furnace hearth according to claim 1, wherein: the first chrome steel jade brick layer and the second chrome steel jade brick layer are both Cr12 chrome steel jade bricks.
6. A lining apparatus for a gasification furnace hearth according to claim 1, wherein: the first castable layer and the second castable layer are both Cr12 chrome steel jade castable.
CN201710710095.XA 2017-08-18 2017-08-18 Lining device of gasification furnace hearth Active CN107339890B (en)

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Application Number Priority Date Filing Date Title
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Publication number Priority date Publication date Assignee Title
CN108219850A (en) * 2018-01-23 2018-06-29 江苏索普（集团）有限公司 Multiinjector water coal slurry gasification furnace burner room insulated lining
CN108679843A (en) * 2018-04-11 2018-10-19 西北工业大学 One kind is for the hollow brick storage heater thermal insulation layer design of high-temperature tunnel

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CN203845998U (en) * 2014-04-30 2014-09-24 华东理工大学 Single-nozzle water-coal-slurry entrained-flow bed gasifier
CN207035838U (en) * 2017-08-18 2018-02-23 中钢集团耐火材料有限公司 A kind of inner lining apparatus of gasification furnace burner hearth

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