CN111595154B - Rapid-construction continuous annealing furnace and construction method thereof - Google Patents
Rapid-construction continuous annealing furnace and construction method thereof Download PDFInfo
- Publication number
- CN111595154B CN111595154B CN202010459717.8A CN202010459717A CN111595154B CN 111595154 B CN111595154 B CN 111595154B CN 202010459717 A CN202010459717 A CN 202010459717A CN 111595154 B CN111595154 B CN 111595154B
- Authority
- CN
- China
- Prior art keywords
- furnace shell
- shell unit
- furnace
- unit
- horizontal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000010276 construction Methods 0.000 title claims abstract description 31
- 238000000137 annealing Methods 0.000 title claims abstract description 24
- 238000003466 welding Methods 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 12
- 229920000742 Cotton Polymers 0.000 claims abstract description 7
- 239000000919 ceramic Substances 0.000 claims abstract description 7
- 239000000835 fiber Substances 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 63
- 239000010959 steel Substances 0.000 claims description 63
- 238000001514 detection method Methods 0.000 claims description 22
- 229910001220 stainless steel Inorganic materials 0.000 claims description 11
- 239000010935 stainless steel Substances 0.000 claims description 11
- 239000011819 refractory material Substances 0.000 claims description 7
- 230000005855 radiation Effects 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 5
- 238000004321 preservation Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 8
- 230000000903 blocking effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000707 layer-by-layer assembly Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Classifications
-
- 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
- F27D1/0003—Linings or walls
- F27D1/0006—Linings or walls formed from bricks or layers with a particular composition or specific characteristics
- F27D1/0009—Comprising ceramic fibre elements
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces 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
- F27D1/02—Crowns; Roofs
- F27D1/021—Suspended roofs
-
- 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
- F27D1/14—Supports for linings
- F27D1/141—Anchors 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
- F27D1/14—Supports for linings
- F27D1/144—Supports for ceramic fibre materials
-
- 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
- F27D1/16—Making or repairing linings increasing the durability of linings or breaking away linings
- F27D1/1621—Making linings by using shaped elements, e.g. bricks
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The invention relates to the field of continuous strip or wire treatment furnaces, in particular to a rapid-construction continuous annealing furnace and a construction method thereof. The rapid-construction continuous annealing furnace comprises a base (1), a furnace shell (2) and a furnace top chamber (3), and is characterized in that: the furnace shell (2) is formed by sequentially splicing and welding at least five furnace shell units (21) along the vertical direction, and sealing layers (46) formed by ceramic fiber cotton are fixed at joints between two adjacent furnace shell units (21) by using anchor nails (45). A construction method of a rapid construction type continuous annealing furnace is characterized by comprising the following steps: the method comprises the following steps of: ① A fixed base; ② Assembling a furnace shell; ③ And (5) hoisting the furnace roof chamber. The invention improves the operation efficiency and quality, and is safe and reliable.
Description
Technical Field
The invention relates to the field of continuous strip or wire treatment furnaces, in particular to a rapid-construction continuous annealing furnace and a construction method thereof.
Background
The continuous annealing furnace is generally up to more than 30m and is divided into furnace sections such as preheating, heating, soaking, cooling and the like, and the furnace body structure is a furnace shell, refractory materials and a lining plate. The traditional construction method comprises the steps of firstly building a furnace body steel structure, then assembling single furnace shells according to layers, building a scaffold inside the furnace shells after the furnace shells are mounted, welding and anchoring nails, paving a ceramic fiber blanket, and finally mounting a stainless steel lining plate. After the furnace shell is assembled to the lining plate, the time is generally 3 months, and the operation is high-altitude, so that the operation of climbing up the scaffold to the high place by operators is quite unsafe. In addition, because the construction position is higher, the installation quality of stainless steel lining plate is difficult to check, and the problem of furnace shutdown caused by falling of the stainless steel lining plate frequently occurs in the subsequent production process.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a safe and reliable continuous treatment furnace with improved operation efficiency and quality, and discloses a rapid construction type continuous annealing furnace and a construction method thereof.
The invention achieves the aim through the following technical scheme:
The utility model provides a build formula continuous annealing stove fast, includes base, stove outer covering and furnace roof room, and the base is fixed subaerial, and the bottom of stove outer covering is fixed on the base, and the furnace roof room lid is at the top of stove outer covering, characterized by: the furnace shell is formed by sequentially splicing and welding at least five furnace shell units along the vertical direction, one angle steel is respectively fixed on four side edges of the furnace shell units in the vertical direction to form a steel structure, the steel structure is used for supporting the furnace shell and is connected with the ground after the furnace shell units are spliced into the furnace shell, heat insulation nails are welded in the furnace shell units, refractory materials and stainless steel lining plates are paved, a radiation pipe is also fixed on the furnace shell units, the top and the bottom of the outer side wall of the furnace shell units are respectively welded and fixed with the angle steel, the top and the bottom of the inner side wall of the furnace shell units are also respectively welded and fixed with the angle steel, when two adjacent furnace shell units are spliced, the angle steel at the bottom of the outer side wall of the upper furnace shell unit and the angle steel at the top of the outer side wall of the lower furnace shell unit are mutually spliced and welded, and a sealing layer formed by ceramic fiber cotton is fixed at a joint between the two adjacent furnace shell units through anchor nails.
The rapid build-up continuous annealing furnace is characterized in that: each furnace shell unit is formed by splicing and welding a horizontal furnace shell unit A and a horizontal furnace shell unit B along the horizontal direction, the widths of the horizontal furnace shell unit A and the horizontal furnace shell unit B are unequal, and when the furnace shell units are spliced into a furnace shell, the splicing seams of the horizontal furnace shell unit A and the horizontal furnace shell unit B of two adjacent furnace shell units are staggered, namely: when the horizontal furnace shell unit A of the lower furnace shell unit is at the left side and the horizontal furnace shell unit B is at the right side, the horizontal furnace shell unit A of the upper furnace shell unit is at the right side and the horizontal furnace shell unit B is at the left side.
The construction method of the rapid construction type continuous annealing furnace is characterized by comprising the following steps of: the method comprises the following steps of:
① And (3) fixing a base: fixing a base on the ground, keeping the base horizontal, and arranging a stand column outside four side edges in the vertical direction of the base;
② Assembling a furnace shell: welding heat insulation nails, laying refractory materials and stainless steel lining plates in a furnace shell unit, fixing radiation pipes on the furnace shell unit, respectively welding and fixing angle steel at the top and the bottom of the outer side wall of the furnace shell unit, respectively welding and fixing angle steel at the top and the bottom of the inner side wall of the furnace shell unit, hoisting the upper furnace shell unit, adopting a balance sling in hoisting, wherein the balance sling is a Chinese-character 'ri' shaped frame, lifting lugs are arranged on connecting rods in the middle of the balance sling, one steel wire rope is respectively tethered to four corners of the balance sling, the lengths of the steel wire ropes are equal, the bottom end of each steel wire rope is tethered to the bottom of the furnace shell unit, a hoisting machine is used for hoisting the upper furnace shell unit through the lifting lugs and adjusting the upper furnace shell unit to be horizontal, so as to avoid the furnace shell unit from tilting to collide with peripheral equipment, ensure that the upper furnace shell unit is connected with the lower furnace shell unit in a horizontal state, hoisting the upper furnace shell unit to the right above the lower furnace shell unit, splicing the upper furnace shell unit, splicing angle steel at the bottom of the outer side wall of the upper furnace shell unit and the lower furnace shell unit, splicing angle steel wire ropes are respectively, splicing angle steel at the bottom of the upper furnace shell unit and the lower furnace shell unit are mutually, the upper side wall steel wire rope is welded at the top of the upper furnace shell unit, the two adjacent furnace shell units are mutually, and the upper furnace shell unit is welded by the adjacent to the upper layer, and the upper furnace shell unit and the upper layer is fixed by the ceramic layer, and the upper layer and the lower furnace shell unit is welded;
A guide plate is welded and fixed on four side edges of the steel structure respectively, steel wires are used for checking when the guide plates are welded to ensure that the guide plates are parallel to the steel structure, a track is fixed on the four side edges of each furnace shell unit respectively, and when the upper furnace shell unit is hoisted to the lower furnace shell unit, each track is embedded into the guide plate and slides along the guide plate respectively, so that the upper furnace shell unit is stably hoisted without shaking, blocking caused by torsion or inclination and blocking collision when entering and exiting the steel structure;
③ Hoisting a furnace top chamber: adjusting screws are arranged around the furnace shell unit on the top layer, furnace rollers are arranged in the furnace top chamber, the levelness and elevation of the furnace top chamber are respectively adjusted to be within the design standard range through the adjusting screws, then a movable flange is welded, and finally the adjusting screws are removed.
The construction method of the rapid construction type continuous annealing furnace is characterized by comprising the following steps of:
In step ②, each furnace shell unit is formed by splicing and welding a horizontal furnace shell unit A and a horizontal furnace shell unit B along the horizontal direction, the widths of the horizontal furnace shell unit A and the horizontal furnace shell unit B are different, and when the furnace shell units are spliced into a furnace shell, the splicing seams of the horizontal furnace shell unit A and the horizontal furnace shell unit B of two adjacent furnace shell units are staggered, namely: when the horizontal furnace shell unit A of the lower furnace shell unit is at the left side and the horizontal furnace shell unit B is at the right side, the horizontal furnace shell unit A of the upper furnace shell unit is at the right side and the horizontal furnace shell unit B is at the left side.
The construction method of the rapid construction type continuous annealing furnace is characterized by comprising the following steps of: in the step ②, precision detection and preassembly are firstly carried out on each furnace shell unit before assembly, the precision detection is carried out on a detection base, the detection base is firstly adjusted to be horizontal, each furnace shell unit is sequentially numbered as 1#, 2#, … … n#, then the 1# furnace shell unit is hung on the detection base, the levelness and the verticality of the 1# furnace shell unit are detected, after the fact that the design standard range is met, the 2# furnace shell unit is hung on the 1# furnace shell unit, the posts on the periphery of the two layers of furnace shell units are contacted with each other, the levelness and the verticality are detected on the 2# furnace shell unit, after the fact that the design standard range is met, the 1# furnace shell unit (21) is removed, the 2# furnace shell unit is arranged on the detection base, then the 3# furnace shell unit is hung on the 2# furnace shell unit, the levelness and the verticality are detected on the 3# furnace shell unit, after the design standard range is confirmed, the 2# furnace shell unit is removed, the 3# furnace shell unit is arranged on the detection base, the 4# furnace shell unit is hung on the detection base, and all the furnace shell units are assembled one by one.
The invention discloses a continuous annealing furnace capable of being quickly built and a building method, and the continuous annealing furnace has the following beneficial effects: the installation time of the on-site annealing furnace is greatly shortened, the difficulty of manual operation is reduced, the potential safety hazards of operation in high altitude and closed space are eliminated, the installation quality is improved, the installation efficiency is high, and the method is suitable for the integral maintenance and replacement of a newly built continuous annealing furnace and an old furnace.
Drawings
Figure 1 is a schematic view of the invention in which the furnace shell is formed by splicing layered furnace shell units,
Figure 2 is a schematic view of the same furnace shell unit of the invention formed by splicing a horizontal furnace shell unit A and a horizontal furnace shell unit B,
Figure 3 is a schematic view of the installation of accessories in a furnace shell unit as constructed according to the invention,
Figure 4 is a schematic cross-sectional view of the adjacent two-layer furnace shell unit assembly as constructed in accordance with the present invention,
Figure 5 is a schematic axial view of the splicing of two adjacent furnace shell units when the invention is constructed,
Figure 6 is a schematic diagram of a balanced spreader hoisting furnace shell unit as constructed in accordance with the present invention,
Figure 7 is a schematic diagram of layer-by-layer assembly of the balance sling hoisting furnace shell unit during construction of the invention,
Figure 8 is a schematic cross-sectional view of the sliding of the track along the guide plate as the invention is built,
Figure 9 is a schematic axial view of the sliding of the track along the guide plate as the invention is built,
Figure 10 is a schematic view of the installation of the roof chamber as constructed in accordance with the present invention,
Figure 11 is a schematic view of the inspection base as constructed in accordance with the present invention,
Figure 12 is a schematic axial view of simulated assembly and accuracy testing during construction of the present invention,
Figure 13 is a schematic isometric view of the underlying furnace shell unit as it is being constructed from the present invention when lifted to a base,
Fig. 14 is an isometric view of the invention after construction.
Detailed Description
The invention is further illustrated by the following specific examples.
Example 1
The rapid build-up type continuous annealing furnace comprises a base 1, a furnace shell 2 and a furnace top chamber 3, and the specific structure is as shown in fig. 1, 2 and 14:
The base 1 is fixed on the ground, the bottom of the furnace shell 2 is fixed on the base 1, and the furnace top chamber 3 is covered on the top of the furnace shell 2, and is characterized in that: the furnace shell 2 is formed by sequentially splicing and welding at least five furnace shell units 21 along the vertical direction, one angle steel is respectively fixed on four side edges of the furnace shell units 21 in the vertical direction to form a steel structure 6, the steel structure 6 is used for supporting the furnace shell 2 and is connected with the ground after the furnace shell units 21 are spliced into the furnace shell 2, heat insulation nails 41 are welded in the furnace shell units 21, refractory materials and stainless steel lining plates 42 are paved, radiation pipes 43 are also fixed on the furnace shell units 21, angle steel 44 are respectively welded and fixed at the top and the bottom of the outer side wall of the furnace shell units 21, angle steel 44 is also respectively welded and fixed at the top and the bottom of the inner side wall of the furnace shell units 21, when two adjacent furnace shell units 21 are spliced, the angle steel 44 at the bottom of the outer side wall of the upper furnace shell unit 21 and the angle steel at the top of the outer side wall of the lower furnace shell unit 21 are mutually spliced and welded, and a sealing layer 46 formed by ceramic fiber cotton is fixed at the seam between two adjacent furnace shell units 21 through anchor nails 45.
In this embodiment: each furnace shell unit 21 can be formed by splicing and welding a horizontal furnace shell unit A211 and a horizontal furnace shell unit B212 along the horizontal direction, the widths of the horizontal furnace shell unit A211 and the horizontal furnace shell unit B212 are unequal, and when the furnace shell units 21 are spliced into the furnace shell 2, the splicing seams of the horizontal furnace shell unit A211 and the horizontal furnace shell unit B212 of two adjacent furnace shell units 21 are staggered, namely: when the horizontal furnace shell unit a 211 of the lower furnace shell unit 21 is on the left side and the horizontal furnace shell unit b 212 is on the right side, then the horizontal furnace shell unit a 211 of the upper furnace shell unit 21 is on the right side and the horizontal furnace shell unit b 212 is on the left side.
The construction of the embodiment is carried out sequentially according to the following steps:
① And (3) fixing a base: as shown in fig. 13: fixing a base 1 on the ground, keeping the base 1 horizontal, and arranging a stand column outside four side edges in the vertical direction of the base 1;
② Assembling a furnace shell: as shown in fig. 3: welding heat preservation nails 41, paving refractory materials and stainless steel lining plates 42 in the furnace shell unit 21, and fixing radiation pipes 43 on the furnace shell unit 21; as shown in fig. 4 and 5: respectively welding and fixing angle steels 44 at the top and the bottom of the outer side wall of the furnace shell unit 21, respectively welding and fixing angle steels 44 at the top and the bottom of the inner side wall of the furnace shell unit 21, and hoisting the furnace shell unit 21 at the upper layer; as shown in fig. 6 and 7: the balance lifting device 5 is adopted in lifting, the balance lifting device 5 is a Chinese-character 'ri' shaped frame, lifting lugs 51 are arranged on connecting rods in the middle of the balance lifting device 5, one steel wire rope 52 is respectively tethered to four corners of the balance lifting device 5, the lengths of the steel wire ropes 52 are equal, the bottom end of each steel wire rope 52 is tethered to the bottom of the furnace shell unit 21, the furnace shell unit 21 on the upper layer is lifted by using a lifting machine through the lifting lugs 51 and is regulated to be horizontal, the furnace shell unit 21 is prevented from tilting to collide with peripheral equipment, the furnace shell unit 21 on the upper layer is ensured to be connected with the furnace shell unit 21 on the lower layer in a horizontal state, the furnace shell unit 21 on the upper layer is lifted to be directly above the furnace shell unit 21 on the lower layer, the steel wire rope 52 on the outer side wall of the upper layer is spliced with the steel wire rope 52 on the outer side wall of the furnace shell unit 21 on the lower layer, the steel wire rope 44 on the inner side of the inner side wall of the furnace shell unit 21 on the upper layer is spliced and welded with the steel wire rope 52 on the inner side of the lower layer, the steel wire rope 21 on the inner side of the furnace shell unit 21 is mutually spliced and welded, the joint between the furnace shell unit 21 and the adjacent furnace shell units 21 on the upper layer and the furnace shell unit 21 is fixed with anchor cotton fiber wool 45 to form a sealing layer 46 on the furnace shell unit 2;
as shown in fig. 8 and 9: a guide plate 61 is welded and fixed on four side edges of the steel structure 6 respectively, steel wires are used for checking and ensuring that the guide plate 61 is parallel to the steel structure 6 when welded, a track 22 is fixed on the four side edges of each furnace shell unit 21 respectively, when the upper furnace shell unit 21 is hoisted to the lower furnace shell unit 21, each track 22 is embedded into one guide plate 61 respectively and slides along the guide plate 61, so that the upper furnace shell unit 21 is stably hoisted without shaking, blocking caused by torsion or inclination, and blocking and collision do not occur when the upper furnace shell unit 21 enters and exits the steel structure 6.
The mass of the furnace shell units 21 should not exceed the lifting force of a lifting machine such as a crane in a factory, if the lifting force of the lifting machine is limited, each furnace shell unit 21 can be further divided into a first horizontal furnace shell unit 211 and a second horizontal furnace shell unit 212, which are formed by splicing and welding in the horizontal direction, and the widths of the first horizontal furnace shell unit 211 and the second horizontal furnace shell unit 212 are different
When the furnace shell units 21 are spliced into the furnace shell 2, the joints of the horizontal furnace shell units A211 and the horizontal furnace shell units B212 of the adjacent two layers of furnace shell units 21 are staggered, namely: when the horizontal furnace shell unit A211 of the lower furnace shell unit 21 is on the left side and the horizontal furnace shell unit B212 is on the right side, the horizontal furnace shell unit A211 of the upper furnace shell unit 21 is on the right side and the horizontal furnace shell unit B212 is on the left side, thus forming a stepped seam, having better air tightness after welding and being difficult to leak and deform.
Before assembly, precision detection and preassembling are performed on each furnace shell unit 21, and the precision detection is performed on the detection base 8, as shown in fig. 11: firstly, the detection base 8 is adjusted to be horizontal, each furnace shell unit 21 is numbered as 1#, 2#, … … n#, in sequence from bottom to top, and then, as shown in fig. 12: the method comprises the steps of hanging a 1# furnace shell unit 21 onto a detection base 8, detecting levelness and verticality of the 1# furnace shell unit 21 by using a level meter 9 fixed on one side of the detection base 8, hanging the 2# furnace shell unit 21 onto the 1# furnace shell unit 21 after confirming that the levelness and verticality are within a design standard range, enabling four upright posts of two layers of furnace shell units 21 to be in contact with each other, detecting levelness and verticality on the 2# furnace shell unit 21, withdrawing the 1# furnace shell unit 21 after confirming that the levelness and verticality are within the design standard range, enabling the 2# furnace shell unit 21 to be placed on the detection base 8, continuing hanging the 4# furnace shell unit 21 onto the 3# furnace shell unit 21 until all the furnace shell units 21 are detected one by one, and detecting the preassembled furnace shell units 21 are detected one by one.
③ Hoisting a furnace top chamber: as shown in fig. 10: the periphery of the top layer furnace shell unit 21 is provided with an adjusting screw 71, and the furnace top chamber 3
Inside is provided with a furnace roller, the levelness and elevation of the furnace roof chamber 3 are respectively adjusted to be within the design standard range through the adjusting screw 71, then the movable flange 72 is welded, and finally the adjusting screw 71 is removed.
After the construction is completed, as shown in fig. 14.
The embodiment is used for a soaking pit section of a continuous annealing furnace and is installed for a newly built unit. The furnace section was 29 m high, 3.5m wide and 6.5m long, and the furnace internal surface area was 540m2. If the continuous annealing furnace adopts the replacement method in the prior art, operators are required to enter a scaffold, a springboard is paved, then each layer of furnace shell is installed from bottom to top, after the welding of the furnace shells is completed, the furnace shells enter the furnace for welding with anchor nails, then thermal insulation cotton is paved, and finally, the installation of stainless steel plates in the furnace is carried out. And after the construction of the refractory in the furnace is completed, installing the electric heating pipe in the furnace.
By adopting the method of the embodiment, the furnace shell is divided into 10 layers from top to bottom according to the lifting capacity of a lifting machine, namely a field crane, of 20 tons, each layer is not more than 10 tons, the layered manufacture is carried out, and the heat preservation in the furnace and the installation of the stainless steel lining plate are implemented in a manufacturing plant
And assembling all 144 electric heating pipes on the continuous annealing furnace.
The comparison of the construction time of the two furnace shell structures is shown in the following table:
Claims (3)
1. A method for constructing a rapid-construction continuous annealing furnace, which comprises a base (1), a furnace shell (2) and a furnace top chamber (3),
The base (1) is fixed on the ground, the bottom of the furnace shell (2) is fixed on the base (1), the furnace top chamber (3) is covered on the top of the furnace shell (2), the furnace shell (2) is formed by sequentially splicing and welding at least five furnace shell units (21) along the vertical direction, each of four vertical side edges of the furnace shell units (21) is fixed with an angle steel to form a steel structure (6), the steel structure (6) is used for supporting the furnace shell (2) and connecting with the ground after the furnace shell units (21) are spliced into the furnace shell (2), heat preservation nails (41) are welded in the furnace shell units (21), and a refractory material and a stainless steel lining plate (42) are paved, the radiation pipe (43) is also fixed on the furnace shell unit (21), the top and the bottom of the outer side wall of the furnace shell unit (21) are respectively welded and fixed with angle steels (44), the top and the bottom of the inner side wall of the furnace shell unit (21) are also respectively welded and fixed with angle steels (44), when two adjacent furnace shell units (21) are spliced, the angle steels (44) at the bottom of the outer side wall of the upper furnace shell unit (21) and the angle steels at the top of the outer side wall of the lower furnace shell unit (21) are mutually spliced and welded, the angle steels (44) at the bottom of the inner side wall of the upper furnace shell unit (21) and the angle steels at the top of the inner side wall of the lower furnace shell unit (21) are mutually spliced and welded, a sealing layer (46) formed by ceramic fiber cotton is fixed at the joint between two adjacent furnace shell units (21) by using an anchor nail (45);
Each furnace shell unit (21) is formed by splicing and welding a horizontal furnace shell unit A (211) and a horizontal furnace shell unit B (212) along the horizontal direction, the widths of the horizontal furnace shell unit A (211) and the horizontal furnace shell unit B (212) are unequal, and when the furnace shell units (21) are spliced into a furnace shell (2), the splicing seams of the horizontal furnace shell unit A (211) and the horizontal furnace shell unit B (212) of two adjacent furnace shell units (21) are staggered, namely: when the horizontal furnace shell unit A (211) of the lower furnace shell unit (21) is on the left side and the horizontal furnace shell unit B (212) is on the right side, the horizontal furnace shell unit A (211) of the upper furnace shell unit (21) is on the right side and the horizontal furnace shell unit B (212) is on the left side;
The method is characterized in that: the method comprises the following steps of:
① And (3) fixing a base: fixing a base (1) on the ground, keeping the base (1) horizontal, and arranging a stand column outside four side edges in the vertical direction of the base (1);
② Assembling a furnace shell: welding heat insulation nails (41) in a furnace shell unit (21), paving refractory materials and stainless steel lining plates (42), fixing a radiation pipe (43) on the furnace shell unit (21), respectively welding and fixing angle steels (44) at the top and the bottom of the outer side wall of the furnace shell unit (21), respectively welding and fixing the angle steels (44) at the top and the bottom of the inner side wall of the furnace shell unit (21), hoisting an upper-layer furnace shell unit (21), adopting a balance sling (5) during hoisting, wherein the balance sling (5) is a Chinese-character 'ri' shaped frame, lifting lugs (51) are arranged on connecting rods in the middle of the balance sling (5), four corners of the balance sling (5) are respectively tethered with one steel wire rope (52), the lengths of the steel wire ropes (52) are equal, the bottom end of each steel wire rope (52) is tethered at the bottom of the furnace shell unit (21), hoisting the upper-layer furnace shell unit (21) by a hoisting machine to be horizontal by the lifting lugs (51), splicing the upper-layer furnace shell unit (21) to the right above the lower-layer furnace shell unit (21) and splicing the lower-layer furnace shell unit (21), splicing the upper-layer furnace shell unit (21) and the upper-layer furnace shell unit (21) to the lower-layer furnace shell unit (21) by the angle steels are welded, the upper-layer furnace shell unit (21) and the lower-layer furnace shell unit (21) are spliced with the upper-layer inner side wall unit (21) by the angle steels, the upper-layer steel unit and the lower-layer upper-layer furnace shell unit (21) are spliced by the upper-layer steel angle steels are mutually, fixing a sealing layer (46) formed by ceramic fiber cotton at the joint between two adjacent furnace shell units (21) by using an anchor nail (45), so that the furnace shell units (21) are fixed layer by layer on the base (1) to form a furnace shell (2);
A guide plate (61) is welded and fixed on four side edges of the steel structure (6), the guide plate (61) is parallel to the steel structure (6), a track (22) is fixed on four side edges of each furnace shell unit (21), and when the furnace shell unit (21) on the upper layer is hoisted to the furnace shell unit (21) on the lower layer, each track (22) is embedded into one guide plate (61) and slides along the guide plate (61);
③ Hoisting a furnace top chamber: adjusting screws (71) are arranged around the furnace shell unit (21) on the top layer, furnace rollers are arranged in the furnace top chamber (3), the levelness and elevation of the furnace top chamber (3) are respectively adjusted to be within the design standard range through the adjusting screws (71), then a movable flange (72) is welded, and finally the adjusting screws (71) are removed.
2. The method for constructing a rapid-construction continuous annealing furnace according to claim 1, wherein:
In the step ②, each furnace shell unit (21) is formed by welding a horizontal furnace shell unit A (211) and a horizontal furnace shell unit B (212) in a splicing way along the horizontal direction, the widths of the horizontal furnace shell unit A (211) and the horizontal furnace shell unit B (212) are unequal, and when the furnace shell units (21) are spliced into a furnace shell (2), the splicing seams of the horizontal furnace shell unit A (211) and the horizontal furnace shell unit B (212) of two adjacent furnace shell units (21) are staggered, namely: when the horizontal furnace shell unit A (211) of the lower furnace shell unit (21) is on the left side and the horizontal furnace shell unit B (212) is on the right side, the horizontal furnace shell unit A (211) of the upper furnace shell unit (21) is on the right side and the horizontal furnace shell unit B (212) is on the left side.
3. The method for constructing a rapid-construction continuous annealing furnace according to claim 2, wherein: in the step ②, precision detection and preassembling are carried out on each furnace shell unit (21) before assembling, the precision detection is carried out on a detection base (8), the detection base (8) is firstly adjusted to be horizontal, each furnace shell unit (21) is numbered as 1#, 2#, … … n# in sequence according to the lifting sequence from bottom to top, then the 1# furnace shell unit (21) is lifted onto the detection base (8), the levelness and the verticality of the 1# furnace shell unit (21) are detected, after the fact that the levelness and the verticality of the 1# furnace shell unit (21) are within the design standard range is confirmed, the 2# furnace shell unit (21) is lifted onto the 1# furnace shell unit (21), and the upright posts on the periphery of the two layers of furnace shell units (21) are contacted with each other, detecting levelness and verticality on a No. 2 furnace shell unit (21), removing the No. 1 furnace shell unit (21) after confirming that the levelness and verticality are within the design standard range, placing the No. 2 furnace shell unit (21) on a detection base (8), then continuing to hang the No. 3 furnace shell unit (21) on the No. 2 furnace shell unit (21), detecting levelness and verticality on the No. 3 furnace shell unit (21), removing the No. 2 furnace shell unit (21) after confirming that the levelness and verticality are within the design standard range, placing the No. 3 furnace shell unit (21) on the detection base (8), then continuing to hang the No. 4 furnace shell unit (21) on the No. 3 furnace shell unit (21), thus taking the two layers of furnace shell units (21) as a group, detecting preassembly precision one by one, until all the furnace shell units (21) are detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010459717.8A CN111595154B (en) | 2020-05-27 | 2020-05-27 | Rapid-construction continuous annealing furnace and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010459717.8A CN111595154B (en) | 2020-05-27 | 2020-05-27 | Rapid-construction continuous annealing furnace and construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111595154A CN111595154A (en) | 2020-08-28 |
| CN111595154B true CN111595154B (en) | 2024-05-24 |
Family
ID=72181512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010459717.8A Active CN111595154B (en) | 2020-05-27 | 2020-05-27 | Rapid-construction continuous annealing furnace and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111595154B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09324987A (en) * | 1996-06-05 | 1997-12-16 | Nippon Steel Corp | Furnace constructing method |
| CN103727791A (en) * | 2012-10-12 | 2014-04-16 | 中国石油化工集团公司 | Modular structure of radiation section of industrial furnace |
| CN104439972A (en) * | 2014-11-25 | 2015-03-25 | 鞍钢重型机械有限责任公司 | Manufacturing method for planing large converter into two segments |
| CN106636509A (en) * | 2015-10-30 | 2017-05-10 | 上海梅山钢铁股份有限公司 | Masonry method |
| CN107545937A (en) * | 2017-08-25 | 2018-01-05 | 中国核工业华兴建设有限公司 | Nuclear power plant containment shell Leak-tight liner integral type link block structure and its installation method |
| CN109207699A (en) * | 2018-09-12 | 2019-01-15 | 中国二十冶集团有限公司 | Annealing furnace shell modularization installation method |
| CN109338066A (en) * | 2018-10-24 | 2019-02-15 | 中国二十冶集团有限公司 | Horizental annealer modularization moves construction method |
| CN110760634A (en) * | 2019-09-25 | 2020-02-07 | 中国一冶集团有限公司 | Blast furnace shell installation method |
-
2020
- 2020-05-27 CN CN202010459717.8A patent/CN111595154B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09324987A (en) * | 1996-06-05 | 1997-12-16 | Nippon Steel Corp | Furnace constructing method |
| CN103727791A (en) * | 2012-10-12 | 2014-04-16 | 中国石油化工集团公司 | Modular structure of radiation section of industrial furnace |
| CN104439972A (en) * | 2014-11-25 | 2015-03-25 | 鞍钢重型机械有限责任公司 | Manufacturing method for planing large converter into two segments |
| CN106636509A (en) * | 2015-10-30 | 2017-05-10 | 上海梅山钢铁股份有限公司 | Masonry method |
| CN107545937A (en) * | 2017-08-25 | 2018-01-05 | 中国核工业华兴建设有限公司 | Nuclear power plant containment shell Leak-tight liner integral type link block structure and its installation method |
| CN109207699A (en) * | 2018-09-12 | 2019-01-15 | 中国二十冶集团有限公司 | Annealing furnace shell modularization installation method |
| CN109338066A (en) * | 2018-10-24 | 2019-02-15 | 中国二十冶集团有限公司 | Horizental annealer modularization moves construction method |
| CN110760634A (en) * | 2019-09-25 | 2020-02-07 | 中国一冶集团有限公司 | Blast furnace shell installation method |
Non-Patent Citations (1)
| Title |
|---|
| "大型加热炉模块化制造与安装";梁文彬等;《海洋工程论文集》;20140430;第55卷;237-243 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111595154A (en) | 2020-08-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103510816A (en) | Nuclear power door | |
| CN109231007B (en) | Electric furnace body hoisting and mounting process | |
| CN107402226B (en) | Fire resistance test device and method for concrete roof of underground space structure | |
| CN102235107B (en) | Hydraulic lifting construction method for chimney steel inner cylinder | |
| CN205063331U (en) | Slipform architecture | |
| CN106839775A (en) | A kind of modular manufacturing method of heating furnace and the heating furnace manufactured with the method | |
| CN101858161A (en) | Construction method of low-temperature double-wall storage tanks | |
| CN111576691B (en) | Frame type glass curtain wall mounting method and glass curtain wall system | |
| CN104089481B (en) | The construction method of a kind of roaster indoor flue wall and device | |
| CN207081606U (en) | A kind of non-surrounding concrete column pseudo static testing device after by fire | |
| CN111595154B (en) | Rapid-construction continuous annealing furnace and construction method thereof | |
| CN107489163A (en) | A kind of metallurgical industry body of heater annular bolt installation method | |
| CN117759772A (en) | Integral or sectional construction method for high-tightness air duct in narrow well | |
| CN213335543U (en) | Quick-building continuous annealing furnace | |
| CN111121464A (en) | Method for repairing damaged partition wall of internal combustion type hot blast stove | |
| CN115142643B (en) | Suspension type elevator shaft pouring structure of shock isolation system and construction method thereof | |
| CN113404199B (en) | Installation method of umbrella-shaped roof structure | |
| CN109266869B (en) | Furnace cover upside-down mounting and furnace cover mounting process | |
| CN109000483B (en) | Electric furnace bottom insulation and furnace shell flip-chip process | |
| CN208815048U (en) | A kind of State of Blast Furnace is interior to protect canopy support device | |
| CN107255648B (en) | Fire-resistant performance test device for fire-proof ring | |
| CN217738884U (en) | Fire simulation device for mechanical property test of transformer substation framework column | |
| CN110595812A (en) | Experimental device and experimental method for simulating bridge under fire and load | |
| CN205556728U (en) | Combined bench for repairing converter lining | |
| CN111486701B (en) | Method for isolating rotary kiln by drying furnace of cement kiln system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |