CN213335543U - Quick-building continuous annealing furnace - Google Patents
Quick-building continuous annealing furnace Download PDFInfo
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- CN213335543U CN213335543U CN202020916436.6U CN202020916436U CN213335543U CN 213335543 U CN213335543 U CN 213335543U CN 202020916436 U CN202020916436 U CN 202020916436U CN 213335543 U CN213335543 U CN 213335543U
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Abstract
The utility model relates to a strip or wire rod continuous processing stove field specifically is a build formula continuous annealing stove fast. The utility model provides a quick build formula continuous annealing stove, includes base (1), stove outer covering (2) and furnace roof chamber (3), characterized by: the furnace shell (2) is formed by splicing and welding at least five furnace shell units (21) in sequence along the vertical direction, and a sealing layer (46) formed by ceramic fiber cotton is fixed at the joint between two adjacent layers of the furnace shell units (21) by using anchor nails (45). The utility model provides high operating efficiency and quality, safe and reliable.
Description
Technical Field
The utility model relates to a strip or wire rod continuous processing stove field specifically is a build formula continuous annealing stove fast.
Background
The continuous annealing furnace is generally more than 30m and is divided into furnace sections of preheating, heating, soaking, cooling and the like, and the furnace body structure comprises a furnace shell, refractory materials and lining plates. The traditional construction method is that a furnace body steel structure is built, then furnace shell single sheets are assembled according to layers, after the furnace shell is installed, scaffolds are built inside, anchoring nails are welded, then ceramic fiber blankets are laid, and finally stainless steel lining plates are installed. The time from the assembly of the furnace shell to the installation of the lining plate is generally 3 months, and the high-altitude operation is needed, so that the operation personnel can not safely climb to the high place after building the scaffold. In addition, because the construction position is higher, the installation quality of the stainless steel lining plate is difficult to check, and the problem of furnace shutdown caused by the falling of the stainless steel lining plate frequently occurs in the subsequent production process.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides a continuous treatment furnace which improves the operation efficiency and quality, is safe and reliable, and discloses a rapid construction type continuous annealing furnace.
The utility model discloses a following technical scheme reaches the invention purpose:
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 chamber 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, a steel structure is formed by fixing an angle steel on each of four vertical side edges of each furnace shell unit, 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, a heat-insulating nail, a refractory material and a stainless steel lining plate are welded in each furnace shell unit, a radiant tube is also fixed on each furnace shell unit, the top and the bottom of the outer side wall of each furnace shell unit are respectively welded with a fixed angle steel, the top and the bottom of the inner side wall of each furnace shell unit are respectively welded with a fixed angle steel, when two adjacent layers of furnace shell units are spliced, the angle steel of the bottom of the outer side wall of the upper layer furnace shell unit and the angle steel of the top of the outer side wall of the lower layer furnace shell unit are mutually spliced and welded, the angle steel of the bottom of the inner side wall of the upper layer furnace shell unit and the angle steel of the top of the inner side wall of the lower layer furnace shell unit are mutually spliced and welded, and the sealing layer formed by ceramic fiber cotton is fixed at the joint between the adjacent two layers of furnace shell units by using anchoring nails.
The rapid construction type continuous annealing furnace is characterized in that: every stove outer covering unit comprises horizontal stove outer covering unit A and horizontal stove outer covering unit B along the horizontal direction amalgamation welding, and horizontal stove outer covering unit A and horizontal stove outer covering unit B's width inequality between them, when the stove outer covering unit amalgamation becomes the stove outer covering, the piece joint of the horizontal stove outer covering unit A and horizontal stove outer covering unit B of adjacent two-layer stove outer covering unit staggers each other, promptly: when the horizontal furnace shell unit A of the lower furnace shell unit is on the left side and the horizontal furnace shell unit B is on the right side, the horizontal furnace shell unit A of the upper furnace shell unit is on the right side and the horizontal furnace shell unit B is on the left side.
The construction method of the rapid construction type continuous annealing furnace is characterized by comprising the following steps: the method is implemented in sequence according to the following steps:
firstly, fixing a base: fixing a base on the ground, keeping the base horizontal, and arranging a stand column outside each of four side edges in the vertical direction of the base;
assembling the furnace shell: welding heat-insulating nails in the furnace shell unit, laying refractory and stainless steel lining plates, fixing radiant tubes on the furnace shell unit, respectively welding and fixing angle steels at the top and the bottom of the outer side wall of the furnace shell unit, respectively welding and fixing angle steels 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 hanger during hoisting, wherein the balance hanger is a herringbone frame, a lifting lug is arranged on a connecting rod in the middle of the balance hanger, a steel wire rope is respectively tied on four corners of the balance hanger, the lengths of the steel wire ropes are equal, the bottom end of each steel wire rope is tied at the bottom of the furnace shell unit, hoisting the upper furnace shell unit by a hoisting machine through the lifting lug and adjusting to be horizontal, avoiding the furnace shell unit from inclining to collide with peripheral equipment, ensuring 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 be right above the lower furnace shell unit and splicing the lower furnace shell unit, when the furnace shell units are spliced, angle steel at the bottom of the outer side wall of the upper layer furnace shell unit and angle steel at the top of the outer side wall of the lower layer furnace shell unit are spliced and welded mutually, angle steel at the bottom of the inner side wall of the upper layer furnace shell unit and angle steel at the top of the inner side wall of the lower layer furnace shell unit are spliced and welded mutually, a sealing layer formed by ceramic fiber cotton is fixed at a joint between two adjacent layers of furnace shell units by using an anchoring nail, and thus the furnace shell units are fixed on the base layer by layer to form the furnace shell;
the four side edges of the steel structure are respectively welded and fixed with a guide plate, the guide plates are checked and ensured to be parallel to the steel structure by steel wires during welding, four side edges of each furnace shell unit are respectively fixed with a track, and when the upper furnace shell unit is hoisted to the lower furnace shell unit, each track is respectively embedded into one guide plate and slides along the guide plate, so that the upper furnace shell unit is stably hoisted without shaking, jamming caused by torsion or inclination is avoided, and jamming does not occur when the furnace shell unit enters or exits the steel structure;
thirdly, hoisting the furnace top chamber: adjusting screws are arranged on the periphery of the furnace shell unit on the top layer, a furnace roller is arranged in the furnace top chamber, the levelness and the elevation of the furnace top chamber are respectively adjusted to be within a design standard range through the adjusting screws, then a movable flange is welded, and finally the adjusting screws are dismantled.
The construction method of the rapid construction type continuous annealing furnace is characterized by comprising the following steps:
when the furnace shell units are spliced into the furnace shell, the splicing seams of the horizontal furnace shell unit A and the horizontal furnace shell unit B of the adjacent two layers of furnace shell units are staggered mutually, namely: when the horizontal furnace shell unit A of the lower furnace shell unit is on the left side and the horizontal furnace shell unit B is on the right side, the horizontal furnace shell unit A of the upper furnace shell unit is on the right side and the horizontal furnace shell unit B is on the left side.
The construction method of the rapid construction type continuous annealing furnace is characterized by comprising the following steps: firstly, adjusting the detection base to be horizontal, sequentially numbering each furnace shell unit as 1#, 2#, … … n # according to the lifting sequence from bottom to top, then lifting the 1# furnace shell unit onto the detection base, detecting the levelness and verticality of the 1# furnace shell unit, after confirming that the levelness and verticality are in the design standard range, lifting the 2# furnace shell unit onto the 1# furnace shell unit, enabling the stand columns around the two layers of furnace shell units to be mutually contacted, detecting the levelness and verticality on the 2# furnace shell unit, after confirming that the levelness and verticality are in the design standard range, removing the 1# furnace shell unit (21), placing the 2# furnace shell unit on the detection base, then continuously lifting the 3# furnace shell unit onto the 2# furnace shell unit, and detecting the levelness and verticality on the 3# furnace shell unit, and after the situation that the furnace shell units are in the design standard range is confirmed, removing the 2# furnace shell unit, placing the 3# furnace shell unit on the detection base, and then continuously hanging the 4# furnace shell unit onto the # furnace shell unit, so that the preassembly precision is detected one by taking two layers of furnace shell units as a group until all the furnace shell units are completely detected.
The utility model discloses a can build continuous annealing stove and construction method fast, the utility model discloses following beneficial effect has: the installation time of the on-site annealing furnace is greatly shortened, the difficulty of manual operation is reduced, the potential safety hazard of operation in high altitude and closed space is 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
FIG. 1 is a schematic view of the furnace shell of the present invention formed by splicing layered furnace shell units,
FIG. 2 is a schematic view showing that the same furnace shell unit of the present invention is composed of a horizontal furnace shell unit A and a horizontal furnace shell unit B,
FIG. 3 is a schematic view of the installation of the accessories in the furnace shell unit when the present invention is constructed,
FIG. 4 is a schematic sectional view showing the joining of two adjacent furnace shell units when the present invention is constructed,
FIG. 5 is an axial view showing the joining of the furnace shell units of the adjacent two layers during the construction of the present invention,
FIG. 6 is a schematic view of the furnace shell unit hoisted by the balance sling during construction of the utility model,
FIG. 7 is a schematic view of the furnace shell units assembled layer by the lifting of the balance sling during the construction of the utility model,
figure 8 is a schematic cross-sectional view of the sliding of the rail along the guide plate during construction of the present invention,
figure 9 is an axial view of the sliding of the rail along the guide plate during construction of the invention,
figure 10 is a schematic view of the installation of the roof chamber as constructed in accordance with the invention,
figure 11 is a schematic view of the inspection base of the present invention as constructed,
FIG. 12 is an axial schematic view of the present invention constructed to simulate assembly and accuracy testing,
FIG. 13 is an axial view of the furnace shell unit of the bottom layer being hoisted to the base when the present invention is constructed,
figure 14 is an isometric view of the present invention after it has been constructed.
Detailed Description
The invention is further illustrated by the following specific examples.
Example 1
A rapid-building continuous annealing furnace comprises a base 1, a furnace shell 2 and a furnace top chamber 3, as shown in figure 1, figure 2 and figure 14, the specific structure is as follows:
In this embodiment: each furnace shell unit 21 can be formed by splicing and welding a first horizontal furnace shell unit 211 and a second horizontal furnace shell unit 212 in the horizontal direction, the widths of the first horizontal furnace shell unit 211 and the second horizontal furnace shell unit 212 are unequal, and when the furnace shell units 21 are spliced into a furnace shell 2, the splicing seams of the first horizontal furnace shell unit 211 and the second horizontal furnace shell unit 212 of the two adjacent layers of furnace shell units 21 are staggered mutually, namely: when the horizontal furnace shell unit a 211 of the lower furnace shell unit 21 is on the left and the horizontal furnace shell unit b 212 is on the right, the horizontal furnace shell unit a 211 of the upper furnace shell unit 21 is on the right and the horizontal furnace shell unit b 212 is on the left.
When the building is built, the method is implemented in sequence according to the following steps:
firstly, 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 each of four side edges in the vertical direction of the base 1;
assembling the furnace shell: as shown in fig. 3: welding heat preservation nails 41 in the furnace shell unit 21, paving refractory materials and stainless steel lining plates 42, and fixing a radiation tube 43 on the furnace shell unit 21; as shown in fig. 4 and 5: respectively welding and fixing angle steel 44 at the top and the bottom of the outer side wall of the furnace shell unit 21, respectively welding and fixing angle steel 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 on the upper layer; as shown in fig. 6 and 7: when in hoisting, a balance hanger 5 is adopted, the balance hanger 5 is a herringbone frame, lifting lugs 51 are arranged on connecting rods in the middle of the balance hanger 5, one steel wire rope 52 is respectively tied on four corners of the balance hanger 5, the lengths of the steel wire ropes 52 are equal, the bottom end of each steel wire rope 52 is tied on the bottom of the furnace shell unit 21, a hoisting machine is used for hoisting the upper-layer furnace shell unit 21 through the lifting lugs 51 and adjusting the upper-layer furnace shell unit 21 to be horizontal, the furnace shell unit 21 is prevented from being inclined to collide peripheral equipment, the upper-layer furnace shell unit 21 is ensured to be connected with the lower-layer furnace shell unit 21 in a horizontal state, the upper-layer furnace shell unit 21 is lifted to be right above the lower-layer furnace shell unit 21 and spliced with the lower-layer furnace shell unit, angle steel 44 at the bottom of the outer side wall of the upper-layer furnace shell unit 21 and angle steel at the top of the outer side wall of the lower-layer furnace shell unit 21 are spliced and welded with each other angle steel at the bottom of the, fixing a sealing layer 46 formed by ceramic fiber cotton at the joint between two adjacent layers of furnace shell units 21 by using anchor nails 45, thus fixing the furnace shell units 21 on the base 1 layer by layer to form a furnace shell 2;
as shown in fig. 8 and 9: weld a fixed deflector 61 on four arriss of steel construction 6 respectively, it is on a parallel with steel wire inspection and ensures to be on a parallel with steel construction 6 to use the copper wire inspection during deflector 61 welding, fix a track 22 on four arriss of every stove outer covering unit 21 respectively, when hoist the stove outer covering unit 21 of upper strata to the stove outer covering unit 21 of lower floor on, make each track 22 imbed respectively in a deflector 61 and slide along deflector 61, thereby keep steadily and not taking place to rock when making the hoist and mount of the stove outer covering unit 21 of upper strata, can not cause the card because of twisting or slope and hinder, do not take place the card and bump when business turn over steel construction 6.
The quality of the furnace shell unit 21 should not exceed the lifting force of a crane such as a crane in a factory, if the lifting force of the crane is limited, each furnace shell unit 21 can be further divided into a horizontal furnace shell unit A211 and a horizontal furnace shell unit B212, and then the horizontal furnace shell unit A211 and the horizontal furnace shell unit B212 are spliced and welded in the horizontal direction, the widths of the horizontal furnace shell unit A211 and the horizontal furnace shell unit B212 are unequal, when the furnace shell units 21 are spliced into a furnace shell 2, the splicing seams of the horizontal furnace shell unit A211 and the horizontal furnace shell unit 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, so that a step-shaped seam is formed, and the welded seam has good air tightness and is not easy to leak and deform.
Before assembly, each furnace shell unit 21 is subjected to precision detection and pre-assembly, 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 12 is numbered as 1#, 2#, … … n # in sequence according to the hoisting 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 on a detection base 8, detecting the levelness and the verticality of the 1# furnace shell unit 21 by using a level 9 fixed on one side of the detection base 8, hanging the 2# furnace shell unit 21 on the 1# furnace shell unit 21 after confirming that the levelness and the verticality are within a design standard range, enabling stand columns around two layers of furnace shell units 21 to be in contact with each other, detecting the levelness and the verticality on the 2# furnace shell unit 21, removing the 1# furnace shell unit 21 after confirming that the levelness and the verticality are within the design standard range, enabling the 2# furnace shell unit 21 to be placed on the detection base 8, then continuing hanging the 3# furnace shell unit 21 on the 2# furnace shell unit 21, detecting the levelness and the verticality on the 3# furnace shell unit 21, removing the 2# furnace shell unit 21 after confirming that the design standard range, enabling the 3# furnace shell unit 21 to be placed on the detection base 8, and then continuing hanging the 4# furnace shell unit 21 on the 3# furnace shell unit 21, thus, the two furnace shell units 21 are taken as a group, and the preassembly precision is detected one by one until all the furnace shell units 21 are detected completely.
Thirdly, hoisting the furnace top chamber: as shown in fig. 10: adjusting screws 71 are arranged on the periphery of the furnace shell unit 21 on the top layer, furnace rollers are arranged in the furnace top chamber 3, the levelness and the elevation of the furnace top chamber 3 are respectively adjusted to be within a design standard range through the adjusting screws 71, then a movable flange 72 is welded, and finally the adjusting screws 71 are detached.
After construction is complete as shown in figure 14.
The embodiment is used for a soaking pit section of a certain continuous annealing furnace and is used for installing a newly-built unit. The furnace section has the height of 29 meters, the width of 3.5 meters, the length of 6.5 meters and the surface area in the furnace of 540m 2. If the continuous annealing furnace adopts the replacement method in the prior art, the operator needs to enter the scaffold, lay the springboard, then install each layer of furnace shell from bottom to top, enter the furnace to weld the anchoring nail after the welding of the furnace shell is finished, then lay the heat-insulating cotton, and finally install the stainless steel plate in the furnace. After the refractory construction in the furnace is finished, the electric heating pipe in the furnace is installed.
According to the method of the embodiment, the furnace shell is divided into 10 layers from top to bottom according to the hoisting capacity of a crane, namely a crane in a field, of 20 tons, each layer is not more than 10 tons, the layered manufacturing is carried out, the heat preservation in the furnace and the installation of a stainless steel lining plate are carried out in a manufacturing plant, and all 144 electric heating pipes on the continuous annealing furnace are assembled.
The construction times for the two shell structures are compared as shown in the following table:
Claims (2)
1. the utility model provides a build formula continuous annealing stove fast, includes base (1), stove outer covering (2) and furnace roof chamber (3), and base (1) is fixed subaerial, and the bottom of stove outer covering (2) is fixed on base (1), and furnace roof chamber (3) lid is at the top of stove outer covering (2), characterized by: the furnace shell (2) is formed by sequentially splicing and welding at least five furnace shell units (21) along the vertical direction, a steel structure (6) is formed by respectively fixing an angle steel on four lateral edges of the furnace shell units (21) in the vertical direction, 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 and stainless steel lining plates (42) are laid, radiation pipes (43) are further fixed on the furnace shell units (21), the angle steel (44) is respectively welded and fixed at the top and the bottom of the outer lateral wall of each furnace shell unit (21), the angle steel (44) is also respectively welded and fixed at the top and the bottom of the inner lateral wall of each furnace shell unit (21) on the upper layer, the angle steel (44) at the bottom of the outer lateral wall of the furnace shell unit (21) on the lower layer and the outer lateral wall of the furnace shell unit (21) on, the angle steel (44) at the bottom of the inner side wall of the upper-layer furnace shell unit (21) and the angle steel at the top of the inner side wall of the lower-layer furnace shell unit (21) are spliced and welded mutually, and a sealing layer (46) formed by ceramic fiber cotton is fixed at a joint between every two adjacent layers of furnace shell units (21) by using anchor nails (45).
2. The rapid build-up continuous annealing furnace according to claim 1, wherein: every stove outer covering unit (21) comprises horizontal stove outer covering unit A (211) and horizontal stove outer covering unit B (212) along horizontal direction amalgamation welding, and horizontal stove outer covering unit A (211) and horizontal stove outer covering unit B (212) width between them is unequal, and when stove outer covering unit (21) amalgamation becomes stove outer covering (2), the piece joint of horizontal stove outer covering unit A (211) and horizontal stove outer covering unit B (212) of adjacent two-layer stove outer covering unit (21) staggers each other, promptly: 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020916436.6U CN213335543U (en) | 2020-05-27 | 2020-05-27 | Quick-building continuous annealing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020916436.6U CN213335543U (en) | 2020-05-27 | 2020-05-27 | Quick-building continuous annealing furnace |
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| Publication Number | Publication Date |
|---|---|
| CN213335543U true CN213335543U (en) | 2021-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020916436.6U Active CN213335543U (en) | 2020-05-27 | 2020-05-27 | Quick-building continuous annealing furnace |
Country Status (1)
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|---|---|
| CN (1) | CN213335543U (en) |
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2020
- 2020-05-27 CN CN202020916436.6U patent/CN213335543U/en active Active
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