CN115386713A - Solid solution process and device for seamless steel tube special for high-pressure boiler - Google Patents
Solid solution process and device for seamless steel tube special for high-pressure boiler Download PDFInfo
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- CN115386713A CN115386713A CN202211028513.4A CN202211028513A CN115386713A CN 115386713 A CN115386713 A CN 115386713A CN 202211028513 A CN202211028513 A CN 202211028513A CN 115386713 A CN115386713 A CN 115386713A
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- 239000006104 solid solution Substances 0.000 title claims abstract description 74
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 71
- 239000010959 steel Substances 0.000 title claims abstract description 71
- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000008569 process Effects 0.000 title claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims abstract description 150
- 230000007246 mechanism Effects 0.000 claims abstract description 51
- 230000009471 action Effects 0.000 claims description 13
- 230000008859 change Effects 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000004321 preservation Methods 0.000 description 6
- 239000012774 insulation material Substances 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 229910001566 austenite Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- 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
- C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
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- 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
- C21D11/00—Process control or regulation for heat treatments
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- 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
- C21D9/0006—Details, accessories not peculiar to any of the following furnaces
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- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Abstract
The invention belongs to the technical field of heat treatment, and particularly relates to a solid solution process and a solid solution device of a seamless steel tube special for a high-pressure boiler; comprises a conveying mechanism and a solid solution mechanism; the solid solution mechanism includes: the furnace comprises a control box, a furnace body, a horizontal telescopic control mechanism and a vertical telescopic control mechanism; according to the invention, the motor is started, so that the transmission shaft rotates to drive the transmission rack, and the vertical telescopic plates are close to or far away from each other; when the transmission shaft rotates, the transmission shaft winds or releases the traction rope, pulls or releases the part A and the part B to approach or separate from each other, and enables the horizontal expansion plate above to extend or contract; by starting the transmission motor, the transmission motor drives the transmission screw rods on the same side of the furnace body to rotate together through belt transmission, so that the vertical expansion plate is expanded and contracted in the vertical direction.
Description
Technical Field
The invention belongs to the technical field of heat treatment, and particularly relates to a solid solution process and a solid solution device for a seamless steel tube special for a high-pressure boiler.
Background
The high-pressure boiler tube is one of boiler tubes and belongs to the category of seamless steel tubes; the manufacturing process is the same as for seamless pipes, but there are strict requirements on the steel grade used for manufacturing the steel pipe. When the high-pressure boiler pipe is used, the high-pressure boiler pipe is often in high temperature and high pressure conditions, and the pipe can be oxidized and corroded under the action of high-temperature smoke and water vapor; the steel pipe is required to have high endurance strength, high oxidation and corrosion resistance and good structural stability. The high-pressure boiler pipe is mainly used for manufacturing a superheater pipe, a reheater pipe, an air duct, a main steam pipe and the like of high-pressure and ultrahigh-pressure boilers, and the high-pressure boiler pipe has various specifications;
in the process of producing the high-pressure boiler tube, a solid solution process is needed, namely, the alloy is heated to a high-temperature single-phase region and kept at a constant temperature, so that the excess phase is fully dissolved in the solid solution and then is rapidly cooled to obtain a heat treatment process of supersaturated solid solution; when the solid solution furnace is too large and needs to carry out solid solution on the seamless steel pipes special for the high-pressure boiler which are too thin or less in number, the internal space is too large when the furnace body is heated and the heat preservation is carried out, and unnecessary heat resources are inevitably wasted when the temperature requirement of solid solution inside the furnace body reaches.
In view of the above, the invention provides a solid solution process and a solid solution device for a seamless steel tube special for a high-pressure boiler.
Disclosure of Invention
In order to make up the defects of the prior art and change the size of a solid solution furnace, the invention provides a solid solution process and a solid solution device of a seamless steel tube special for a high-pressure boiler.
The technical scheme adopted by the invention for solving the technical problem is as follows: a solid solution device of a seamless steel tube special for a high-pressure boiler comprises a conveying mechanism and a solid solution mechanism; the solid solution mechanism includes: a control box; the furnace body is arranged above the control box and is respectively composed of two horizontal expansion plates and a vertical expansion plate; the horizontal telescopic control mechanism drives the horizontal telescopic plate to stretch and retract so as to change the size of the furnace body in the horizontal direction; the vertical telescopic control mechanism drives the vertical telescopic plate to stretch so as to change the size of the furnace body in the vertical direction.
When the seamless steel tube works, the requirement on the seamless steel tube special for the high-pressure boiler is strict, and during production and manufacturing, the seamless steel tube needs to be subjected to solution treatment, namely, the alloy is heated to a high-temperature austenite region for heat preservation, so that the excessive phase is fully dissolved in the solid solution and then is rapidly cooled to obtain a heat treatment process of supersaturated solid solution; when the solid solution furnace is too large and needs to carry out solid solution on the seamless steel pipes special for the high-pressure boiler which are too thin or less in number, the internal space is too large when the furnace body is heated and the heat preservation is carried out, and unnecessary heat resources are inevitably wasted when the temperature requirement of solid solution inside the furnace body is met; therefore, a horizontal telescopic control mechanism and a vertical telescopic control mechanism are arranged, the horizontal telescopic mechanism drives a horizontal telescopic plate to stretch so as to change the size of the furnace body in the horizontal direction, the vertical telescopic control mechanism drives a vertical telescopic plate to stretch so as to change the size of the furnace body in the vertical direction, and the size can be changed so that heat can be fully utilized when the furnace body processes steel pipes with different thicknesses or different quantities by changing the size of the furnace body, and unnecessary waste is reduced; in this application, the both ends of furnace body all are provided with conveying mechanism, and conveying mechanism is used for transporting the steel pipe, makes the steel pipe dissolve to and will dissolve the steel pipe after the cooling of carrying, and conveying mechanism can be conveyer belt and conveying roller etc. and the heating method in the furnace body can be electrical heating or combustible gas heating.
Preferably, the horizontal expansion and contraction control mechanism includes: the transmission shaft is rotatably connected inside the control box and is fixedly connected with a plurality of transmission gears; the bottom fixedly connected with a plurality of fixed plates of vertical expansion plate, every the fixed plate extends to inside and fixedly connected with driving rack of control box, driving rack corresponds and meshes with it with drive gear's position.
Preferably, the horizontal expansion plate is composed of a part A and a part B, the end parts of the part A and the part B, which are close to each other, are fixedly connected with traction ropes respectively, the traction ropes extend into the control box and are fixedly connected with two sides of the same vertical section of the transmission shaft, and a plurality of springs are fixedly connected between the part A and the part B.
Preferably, a plurality of gag lever post has all been linked firmly at control box side and vertical expansion plate top, the outside nestification of gag lever post has No. two springs, the tip of gag lever post rotates and is connected with the wire wheel, the haulage rope all passes through the wire wheel.
Preferably, the vertical telescopic control mechanism includes: the screw rod nut seat is fixedly connected to the position, close to the top and the bottom, of the vertical telescopic plate, and a transmission screw rod is arranged between the two screw rod nut seats on the same vertical cross section.
Preferably, the two sides of the vertical expansion plate, which are positioned at the inlet and the outlet of the furnace body, are uniformly distributed with screw rod nut seats and transmission screw rods.
Preferably, the tip that the furnace body was kept away from to the lead screw nut seat that is located the wherein arbitrary one side bottom of furnace body import and export has linked firmly the motor cabinet, the motor cabinet has linked firmly drive machine just the motor cabinet is thermal-insulated material, drive machine's output shaft and drive screw's bottom have all linked firmly the belt pulley, be provided with the belt on the belt pulley, belt pulley cooperation belt realizes drive machine with power transmission to every drive screw.
When the furnace body is in work, the inside of the control box is rotatably connected with the transmission shaft, the transmission shaft can be driven by the motor, and the transmission shaft can penetrate through the control box and extend to a position far away from the furnace body because the temperature near the furnace body is higher, so that the motor is not beneficial to use and storage of the motor, and the influence of the temperature inside the furnace body on the motor is ensured to be smaller; in the initial state, the furnace body is in the maximum state, when the conveying mechanism conveys the steel pipes into the furnace body, a worker starts a motor according to the specification and the number of the steel pipes in the furnace body to rotate a transmission shaft, and the transmission shaft rotates to further rotate a transmission gear; when the transmission shaft rotates, the two sides of the same vertical section of the transmission shaft are fixedly connected with traction ropes (namely the two sides of the round section of the transmission shaft are fixedly connected with the traction ropes), so when the transmission shaft rotates, the traction ropes on the two sides are wound or released, and because the other end of the traction rope is fixedly connected to the end parts of the part A and the part B which are close to each other, when the transmission shaft winds the traction ropes, the part A and the part B are pulled to be close to each other, namely the upper horizontal expansion plate and the lower horizontal expansion plate contract under the combined action of the transmission gear, the transmission rack and the traction ropes, so that the horizontal expansion plate positioned above can also contract under the rotation of the transmission shaft, and similarly, when the transmission shaft releases the traction ropes, the part A and the part B are far away from each other under the action of a spring, so that the horizontal expansion plate positioned above extends;
the end part, far away from the furnace body, of the screw rod nut seat at the bottom of any one of the inlet and the outlet of the furnace body is fixedly connected with a motor seat, the motor seat is fixedly connected with a transmission motor, and the motor seat is made of heat insulation materials; similarly, the temperature of the furnace body is high, so the motor base is arranged and made of heat insulation materials, and the length of the motor base can be set, so that the transmission motor is far away from the furnace body as far as possible, and the influence of the temperature of the furnace body on the transmission motor is reduced as far as possible; starting a transmission motor, wherein the transmission motor drives transmission screw rods on the same side of the furnace body to rotate together through belt transmission, so that the vertical expansion plate is expanded in the vertical direction; the two sides of the vertical expansion plate, which are positioned at the inlet and the outlet of the furnace body, are uniformly distributed with screw rod nut seats and transmission screw rods, so that the vertical expansion plate is uniformly stressed;
the size of the furnace body can be changed in the horizontal direction and the vertical direction;
when the vertical expansion plate is expanded, the traction rope may be loosened, the transmission shaft rotates and cannot pull the part A and the part B immediately, or the part A and the part B are separated from each other under the condition that the transmission shaft does not rotate, so that the wire guide wheel is arranged, when the furnace body is in a maximum state, the second spring is in the original position, and when the furnace body is in other states, the second spring is always in a compressed state to tighten the traction rope, so that the traction rope can respond immediately when the transmission shaft rotates; the limiting rod is a telescopic rod which can be freely stretched and contracted.
Preferably, the outlet of the furnace body is provided with a lifting door, and the size of the lifting door is larger than the maximum size of the furnace body.
Preferably, the entry position of furnace body is provided with the crane, be provided with the crossbeam on the crane, the crossbeam can move on the horizontal direction of crane, the push rod has been linked firmly on the crossbeam, the tip of push rod has linked firmly the retractable door, the retractable door is formed by two telescopic hollow slab nestings, and fixedly connected with No. three springs between two telescopic hollow slab bottoms, and be located the inside horizontal fixedly connected with No. four springs of inside telescopic hollow slab.
When the furnace body is in operation, in order to ensure the sealing of the furnace body and reduce the heat loss, a lifting door is arranged at the outlet of the furnace body, the size of the lifting door is larger than the maximum size of the furnace body, the lifting door falls down to seal the outlet of the furnace body when solid solution is carried out, the lifting door rises after the solid solution is finished, and the driving mode of the lifting door can be belt driving, gear rack driving and the like; the lifting frame is arranged at the inlet part of the furnace body, a cross beam is arranged on the lifting frame and can move in the horizontal direction of the lifting frame, a push rod is fixedly connected onto the cross beam, and a telescopic door is fixedly connected onto the end part of the push rod; after the furnace body is fed, the furnace body is in a maximum state, the telescopic door is controlled to enter the furnace body at the moment, the telescopic door is matched with the maximum state of the furnace body at the moment, the telescopic door is formed by nesting two telescopic hollow plates, a third spring is fixedly connected between the bottoms of the two telescopic hollow plates, and a fourth spring is horizontally and fixedly connected inside the telescopic hollow plate positioned inside, so that when the furnace body is horizontally or vertically telescopic, the telescopic door is horizontally or vertically telescopic along with the furnace body and matched with the inside of the furnace body, the relative sealing of the furnace body is ensured, the steel pipe has a length specification, and the cross beam can be controlled to move in the horizontal direction of the lifting frame, so that the telescopic door is controlled to move inside the furnace body, the length inside the furnace body is changed, the size of the furnace body is further reduced, and heat is saved; after the solid solution is finished, lifting the lifting door, continuously pushing the telescopic door, further pushing the steel pipe, and discharging the steel pipe; similarly, the driving modes of the lifting frame and the cross beam can be belt transmission, gear rack transmission and the like.
The solid solution process of the seamless steel tube solid solution device special for the high-pressure boiler comprises the following steps:
s1: the seamless steel pipe special for the high-pressure boiler is fed into the boiler body through the conveying mechanism, the telescopic door is controlled to enter the boiler body, and then the telescopic door is controlled to move in the boiler body, so that the length of the interior of the boiler body is changed, and the length of the steel pipe is met;
s2: the motor is started to enable the transmission shaft to rotate, so that the transmission gear rotates, the transmission gear rotates to drive the transmission rack, and the vertical telescopic plates are close to or far away from each other; when the transmission shaft rotates, the transmission shaft winds the traction rope, the part A and the part B are pulled to be close to each other, namely the upper horizontal expansion plate and the lower horizontal expansion plate contract under the combined action of the transmission gear, the transmission rack and the traction rope, and when the transmission shaft releases the traction rope, the part A and the part B are far away from each other under the action of the first spring, so that the horizontal expansion plate positioned above the transmission shaft extends;
s3: starting a transmission motor, wherein the transmission motor drives transmission screw rods on the same side of the furnace body to rotate together through belt transmission, so that the vertical expansion plate is expanded in the vertical direction; in the process, the size of the telescopic door is changed, the telescopic door is matched with the interior of the furnace body, the lifting door falls down again, the relative sealing of the furnace body is realized, and then the solid solution operation is carried out;
s4: after the solid solution is finished, raise the overhead door, continue to promote flexible door, and then promote the steel pipe, make the steel pipe ejection of compact.
The invention has the following beneficial effects:
1. according to the solid solution process and the solid solution device for the seamless steel tube special for the high-pressure boiler, the motor is started to enable the transmission shaft to rotate, so that the transmission gear rotates, the transmission gear rotates to drive the transmission rack, and the vertical telescopic plates are close to or far away from each other; when the transmission shaft rotates, the transmission shaft winds the traction rope, the part A and the part B are pulled to be close to each other, namely, the upper horizontal expansion plate and the lower horizontal expansion plate contract under the combined action of the transmission gear, the transmission rack and the traction rope, when the transmission shaft releases the traction rope, the part A and the part B are mutually far away under the action of the spring, and the horizontal expansion plate above the transmission shaft extends.
2. According to the solid solution process and the solid solution device for the seamless steel tube special for the high-pressure boiler, the transmission motor is started, and the transmission motor drives the transmission screw rods on the same side of the boiler body to rotate together through belt transmission, so that the vertical expansion plate is expanded and contracted in the vertical direction; the flexible door also follows the transform size at this process, accomplishes and coincide with the furnace body is inside, and the overhead door falls down again, realizes the relative seal of furnace body, dissolves the operation afterwards, and steerable flexible door gets into the furnace body, and the flexible door of the back control moves inside the furnace body to this length that changes the furnace body inside satisfies the length of steel pipe.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a process flow diagram of the solution process of the present invention;
FIG. 2 is a perspective view of the solutionizing apparatus of the present invention;
fig. 3 is a partial enlarged view at a of fig. 2;
FIG. 4 is a perspective view of the vertical telescoping control mechanism of the present invention;
FIG. 5 is a cross-sectional view of the control box of the present invention;
FIG. 6 is a cross-sectional view of the furnace body of the present invention;
FIG. 7 is a cross-sectional view of the telescoping door of the present invention;
FIG. 8 is a top cross-sectional view of the telescoping door of the present invention;
FIG. 9 is a perspective view of a propeller shaft of the present invention;
in the figure: 1. a solid solution mechanism; 11. a control box; 12. a furnace body; 121. a horizontal expansion plate; 122. a vertical expansion plate; 123. part A; 124. part B; 13. a horizontal telescoping control mechanism; 131. a drive shaft; 132. a transmission gear; 133. a drive rack; 134. a fixing plate; 14. a vertical telescoping control mechanism; 141. a screw nut seat; 142. a transmission screw rod; 143. a motor base; 144. a drive motor; 145. a pulley; 146. a belt; 2. a hauling rope; 3. a first spring; 4. a limiting rod; 41. a second spring; 42. a wire guide wheel; 5. a lift gate; 6. a lifting frame; 61. a cross beam; 62. a push rod; 7. a retractable door; 71. a third spring; 72. and a fourth spring.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 2;
the invention relates to a solid solution device of a seamless steel tube special for a high-pressure boiler, which comprises a conveying mechanism and a solid solution mechanism 1; the solid solution mechanism 1 includes: a control box 11; the furnace body 12 is arranged above the control box 11, and the furnace body 12 is respectively composed of two horizontal expansion plates 121 and a vertical expansion plate 122; a horizontal telescopic control mechanism 13 which changes the size of the furnace body 12 in the horizontal direction by driving the horizontal telescopic plate 121 to extend and retract; a vertical telescopic control mechanism 14, wherein the vertical telescopic control mechanism 14 drives the vertical telescopic plate 122 to extend and retract so as to change the size of the furnace body 12 in the vertical direction.
When the seamless steel tube is in work, the requirement of the seamless steel tube special for the high-pressure boiler is generally strict, and during production and manufacturing, the seamless steel tube needs to be subjected to solution treatment, namely the alloy is heated to a high-temperature austenite region for heat preservation, so that the excess phase is fully dissolved in the solid solution and then is rapidly cooled to obtain a heat treatment process of the supersaturated solid solution; when the steel pipe is subjected to solid solution, the steel pipe needs to be placed into the furnace body 12 to be heated to a sufficient temperature, and then heat preservation is carried out, enough heat resources need to be consumed in the process, in the prior art, most solid solution furnaces for solid solution are of fixed specification size, namely the volume size of the solid solution furnaces is fixed, however, specifications of special seamless steel pipes for high-pressure boilers are usually various, so that when the solid solution furnaces are too small, thick or large-quantity special seamless steel pipes for high-pressure boilers are difficult to process, when the solid solution furnaces are too large and the special seamless steel pipes for high-pressure boilers are too thin or small-quantity special seamless steel pipes for high-pressure boilers are subjected to solid solution, the internal space is too large when the furnace body 12 is heated and heat preservation is carried out, and unnecessary heat resources are inevitably wasted when the temperature requirement of solid solution inside the furnace body 12 is met; therefore, the horizontal telescopic control mechanism 13 and the vertical telescopic control mechanism 14 are arranged, the horizontal telescopic mechanism drives the horizontal telescopic plate 121 to stretch and retract so as to change the size of the furnace body 12 in the horizontal direction, the vertical telescopic control mechanism 14 drives the vertical telescopic plate 122 to stretch and retract so as to change the size of the furnace body 12 in the vertical direction, and the size can be changed so that heat can be fully utilized and unnecessary waste can be reduced when the furnace body 12 processes steel pipes with different thicknesses or different quantities by changing the size of the furnace body 12; in this application, furnace body 12's both ends all are provided with conveying mechanism, and conveying mechanism is used for transporting the steel pipe, makes the steel pipe dissolve to and will dissolve the steel pipe after the cooling of carrying, and conveying mechanism can be conveyer belt and conveying roller etc. and the heating method in the furnace body 12 can be electrical heating or combustible gas heating.
As a specific embodiment of the present invention; as shown in fig. 2 and 5, the horizontal expansion and contraction control mechanism 13 includes: the transmission shaft 131 is rotatably connected inside the control box 11, and a plurality of transmission gears 132 are fixedly connected to the transmission shaft 131; a plurality of fixing plates 134 are fixedly connected to the bottom of the vertical extension plate 122, each fixing plate 134 extends into the control box 11 and is fixedly connected with a transmission rack 133, and the transmission racks 133 correspond to and are meshed with the transmission gears 132;
as shown in fig. 2, fig. 5, fig. 6, and fig. 9, the horizontal expansion plate 121 is composed of a part a 123 and a part B124, ends of the part a 123 and the part B124 close to each other are respectively fixedly connected with a traction rope 2, the traction ropes 2 extend into the control box 11 and are fixedly connected with two sides of the same vertical section of the transmission shaft 131, and a plurality of springs 3 are fixedly connected between the part a 123 and the part B124;
as shown in fig. 2 and 3, the side surface of the control box 11 and the top of the vertical expansion plate 122 are fixedly connected with a plurality of limiting rods 4, the outer sides of the limiting rods 4 are nested with second springs 41, the end parts of the limiting rods 4 are rotatably connected with wire guide wheels 42, and the traction ropes 2 pass through the wire guide wheels 42;
as shown in fig. 2 and 4, the vertical telescopic control mechanism 14 includes: the screw rod nut seat 141 is fixedly connected to the position, close to the top and the bottom, of the vertical telescopic plate 122, and a transmission screw rod 142 is arranged between the two screw rod nut seats 141 on the same vertical section;
as shown in fig. 2, the vertical expansion plate 122 is provided with a screw nut seat 141 and a transmission screw 142 on both sides of the inlet and outlet of the furnace body 12;
as shown in fig. 2 and 4, the end of the screw nut seat 141 at the bottom of any one of the inlet and outlet of the furnace body 12, which is far from the furnace body 12, is fixedly connected with a motor seat 143, the motor seat 143 is fixedly connected with a transmission motor 144, the motor seat 143 is made of a heat insulation material, the output shaft of the transmission motor 144 and the bottom of the transmission screw 142 are fixedly connected with belt pulleys 145, a belt 146 is arranged on the belt pulley 145, and the belt pulleys 145 are matched with the belt 146 to transmit power to each transmission screw 142 by the transmission motor 144.
When the furnace body is in work, the transmission shaft 131 is rotatably connected inside the control box 11, the transmission shaft 131 can be driven by the motor, and the transmission shaft 131 can penetrate through the control box 11 and extend to a position far away from the furnace body 12 to be connected with the motor because the temperature near the furnace body 12 is high, so that the influence of the temperature inside the furnace body 12 on the motor is small; in an initial state, the furnace body 12 is in a maximum state, when the conveying mechanism conveys the steel pipes into the furnace body 12, a worker starts a motor according to the specification and the number of the steel pipes in the furnace body 12, so that the transmission shaft 131 rotates, the transmission gear 132 rotates, the fixing plate 134 is fixedly connected to the bottom of the vertical expansion plate 122, the fixing plate 134 is fixedly connected with the transmission rack 133, the opposite transmission racks 133 are in an up-down relationship in position and are all meshed with the transmission gear 132, the transmission gear 132 rotates to drive the transmission rack 133, the vertical expansion plates 122 are close to or far away from each other, and the expansion of the horizontal expansion plate 121 is realized; when the transmission shaft 131 rotates, because the two sides of the same vertical section of the transmission shaft 131 are fixedly connected with the pulling ropes 2 (namely, the two sides of the transmission shaft 131 with the round section are fixedly connected with the pulling ropes 2), when the transmission shaft 131 rotates, the pulling ropes 2 on the two sides are wound or released, and because the other end of the pulling rope 2 is fixedly connected to the end parts of the part a 123 and the part B124 which are close to each other, when the transmission shaft 131 winds the pulling ropes 2, the part a 123 and the part B124 are pulled to be close to each other, namely, the upper horizontal expansion plate 121 and the lower horizontal expansion plate 121 contract under the combined action of the transmission gear 132, the transmission rack 133 and the pulling ropes 2, so that the horizontal expansion plate 121 above can also contract under the rotation of the transmission shaft 131, and similarly, when the transmission shaft 131 releases the pulling ropes 2, the part a 123 and the part B124 are far away from each other under the action of the spring 3, so that the horizontal expansion plate 121 above is extended;
the end part of the screw nut seat 141 at the bottom of any one side of the inlet and outlet of the furnace body 12 far away from the furnace body 12 is fixedly connected with a motor seat 143, the motor seat 143 is fixedly connected with a transmission motor 144, and the motor seat 143 is made of heat insulation materials; similarly, the furnace body 12 has high temperature, so the motor base 143 is made of heat insulation material, and the length of the motor base 143 can be set, so that the transmission motor 144 is far away from the furnace body 12 as far as possible, and the influence of the temperature of the furnace body 12 on the transmission motor 144 is reduced as far as possible; starting the transmission motor 144, wherein the transmission motor 144 drives the transmission screw rods 142 on the same side of the furnace body 12 to rotate together through the transmission of the belt 146, so that the vertical expansion plate 122 expands and contracts in the vertical direction; the two sides of the vertical expansion plate 122, which are positioned at the inlet and the outlet of the furnace body 12, are uniformly distributed with a screw nut seat 141 and a transmission screw 142, so that the vertical expansion plate 122 is stressed uniformly;
the size of the furnace body 12 can be changed in the horizontal direction and the vertical direction;
when the vertical expansion plate 122 expands and contracts, the pulling rope 2 may become loose, at this time, the transmission shaft 131 rotates and cannot pull the part a 123 and the part B124 immediately, or the part a 123 and the part B124 are separated from each other under the condition that the transmission shaft 131 does not rotate, so the wire guide wheel 42 is arranged, when the furnace body 12 is in the maximum state, the second spring 41 is in the original position, so the second spring 41 is in the compressed state all the time when the furnace body 12 is in other states, the pulling rope 2 is tightened, and when the transmission shaft 131 rotates, the pulling rope 2 can respond immediately; the limiting rod 4 is a telescopic rod which can be freely stretched and contracted.
As a specific embodiment of the present invention; as shown in fig. 2, a lifting door 5 is arranged at the outlet of the furnace body 12, and the size of the lifting door 5 is larger than the maximum size of the furnace body 12;
as shown in fig. 7 and 8, the entry position of furnace body 12 is provided with crane 6, be provided with crossbeam 61 on the crane 6, crossbeam 61 can remove in crane 6's horizontal direction, push rod 62 has been linked firmly on crossbeam 61, the tip of push rod 62 has linked firmly flexible door 7, flexible door 7 is formed by two telescopic hollow slab nestings, and fixedly connected with No. three springs 71 between two telescopic hollow slab bottoms, and is located the inside horizontal fixedly connected with No. four springs 72 of inside telescopic hollow slab.
When the furnace body is in operation, in order to ensure the sealing of the furnace body 12 and reduce the heat loss, the lifting door 5 is arranged at the outlet of the furnace body 12, the size of the lifting door 5 is larger than the maximum size of the furnace body 12, when solid solution is carried out, the lifting door 5 falls down to seal the outlet of the furnace body 12, the lifting door 5 rises after the solid solution is finished, and the driving mode of the lifting door 5 can be belt 146 driving, gear rack driving and the like; the inlet part of the furnace body 12 is provided with a lifting frame 6, the lifting frame 6 is provided with a cross beam 61, the cross beam 61 can move in the horizontal direction of the lifting frame 6, the cross beam 61 is fixedly connected with a push rod 62, the end part of the push rod 62 is fixedly connected with a telescopic door 7, when the furnace body 12 is fed, the lifting frame 6 drives the cross beam 61 and the telescopic door 7 to move upwards, and the feeding of the furnace body 12 is not influenced; after the furnace body 12 is fed, the furnace body 12 is in a maximum state, the telescopic door 7 is controlled to enter the furnace body 12 at the moment, the telescopic door 7 is matched with the maximum state of the furnace body 12 at the moment, the telescopic door 7 is formed by nesting two telescopic hollow plates, a third spring 71 is fixedly connected between the bottoms of the two telescopic hollow plates, and a fourth spring 72 is horizontally and fixedly connected inside the telescopic hollow plate positioned inside, so that when the furnace body 12 is horizontally or vertically stretched, the telescopic door 7 is horizontally or vertically stretched along with the furnace body 12 and matched with the inside of the furnace body 12, the relative sealing of the furnace body 12 is ensured, the steel pipe has a length specification, the cross beam 61 can be controlled to move in the horizontal direction of the lifting frame 6, and the telescopic door 7 is controlled to move inside the furnace body 12, so that the length inside of the lifting frame 12 is changed, the size of the furnace body 12 is further reduced, and heat is saved; after the solid solution is finished, lifting the lifting door 5, continuously pushing the telescopic door 7, further pushing the steel pipe, and discharging the steel pipe; similarly, the driving manner of the crane 6 and the moving of the beam 61 here can be belt 146 transmission, gear rack transmission, etc.
The solid solution process of the seamless steel tube solid solution device special for the high-pressure boiler comprises the following steps:
s1: the seamless steel pipe special for the high-pressure boiler is conveyed into the furnace body 12 through the conveying mechanism, the telescopic door 7 is controlled to enter the furnace body 12, and then the telescopic door 7 is controlled to move in the furnace body 12, so that the length of the inside of the furnace body 12 is changed, and the length of the steel pipe is met;
s2: starting the motor to rotate the transmission shaft 131, so that the transmission gear 132 rotates, and the transmission gear 132 rotates to drive the transmission rack 133, so that the vertical expansion plates 122 are close to or far away from each other; when the transmission shaft 131 rotates, the transmission shaft 131 winds the traction rope 2, the part A123 and the part B124 are pulled to approach each other, namely, the upper horizontal expansion plate 121 and the lower horizontal expansion plate 121 contract under the combined action of the transmission gear 132, the transmission rack 133 and the traction rope 2, and when the transmission shaft 131 releases the traction rope 2, the part A123 and the part B124 are far away from each other under the action of the first spring 3, so that the horizontal expansion plate 121 positioned above is extended;
s3: starting the transmission motor 144, wherein the transmission motor 144 drives the transmission screw rods 142 on the same side of the furnace body 12 to rotate together through the transmission of the belt 146, so that the vertical expansion plate 122 expands and contracts in the vertical direction; in the process, the size of the telescopic door 7 is changed, the telescopic door is matched with the inside of the furnace body 12, the lifting door 5 falls down again, the relative sealing of the furnace body 12 is realized, and then the solid solution operation is carried out;
s4: after the solid solution is finished, the lifting door 5 is lifted, the telescopic door 7 is continuously pushed, and then the steel pipe is pushed, so that the steel pipe is discharged.
Claims (10)
1. A solid solution device of a seamless steel pipe special for a high-pressure boiler comprises a conveying mechanism and a solid solution mechanism (1); the solid solution mechanism (1) includes:
a control box (11);
the furnace body (12) is arranged above the control box (11), and the furnace body (12) is respectively composed of two horizontal expansion plates (121) and a vertical expansion plate (122);
the horizontal telescopic control mechanism (13) is used for changing the size of the furnace body (12) in the horizontal direction by driving the horizontal telescopic plate (121) to stretch;
the vertical telescopic control mechanism (14), the vertical telescopic control mechanism (14) drives the vertical telescopic plate (122) to be telescopic so as to change the size of the furnace body (12) in the vertical direction.
2. The solid solution device of the seamless steel tube specially used for the high pressure boiler according to claim 1, characterized in that: the horizontal telescoping control mechanism (13) comprises:
the transmission shaft (131) is rotatably connected inside the control box (11), and a plurality of transmission gears (132) are fixedly connected to the transmission shaft (131);
the bottom fixedly connected with of vertical expansion plate (122) a plurality of fixed plate (134), every fixed plate (134) extend to inside and fixedly connected with driving rack (133) of control box (11), driving rack (133) correspond with the position of drive gear (132) and mesh with it.
3. The solid solution device of the seamless steel tube specially used for the high pressure boiler according to claim 1, characterized in that: horizontal expansion plate (121) comprise part A (123) and part B (124), the tip that part A (123) and part B (124) are close to each other has linked firmly haulage rope (2) respectively, haulage rope (2) all extend to control box (11) inside and with the both sides fixed connection of the same vertical cross-section of transmission shaft (131), just a plurality of spring (3) have been linked firmly between part A (123) inside and part B (124).
4. The solid solution device of the seamless steel tube specially used for the high pressure boiler according to claim 1, characterized in that: control box (11) side and vertical expansion plate (122) top have all linked firmly a plurality of gag lever post (4), the outside nested No. two spring (41) that have of gag lever post (4), the tip of gag lever post (4) rotates and is connected with wire wheel (42), haulage rope (2) all pass through wire wheel (42).
5. The solid solution device of the seamless steel tube specially used for the high pressure boiler according to claim 1, characterized in that: the vertical telescoping control mechanism (14) comprises:
the screw rod and nut seat (141) is fixedly connected to the position, close to the top and the bottom, of the vertical telescopic plate (122), and a transmission screw rod (142) is arranged between the two screw rod and nut seats (141) on the same vertical section.
6. The solid solution device of the seamless steel tube specially used for the high pressure boiler according to claim 5, wherein: and the vertical expansion plates (122) are positioned on the two sides of the inlet and the outlet of the furnace body (12) and are respectively provided with a screw and nut seat (141) and a transmission screw rod (142).
7. The solid solution device of the special seamless steel tube for the high-pressure boiler according to claim 1, wherein: the tip that is located the lead screw nut seat (141) of wherein arbitrary one side bottom of furnace body (12) exit and keeps away from furnace body (12) has linked firmly motor cabinet (143), motor cabinet (143) have linked firmly driving motor (144) just motor cabinet (143) are thermal-insulated material, the output shaft of driving motor (144) and the bottom of driving lead screw (142) have all linked firmly belt pulley (145), be provided with belt (146) on belt pulley (145), belt pulley (145) cooperation belt (146) realize driving motor (144) and transmit power to every driving lead screw (142).
8. The solid solution device of the special seamless steel tube for the high-pressure boiler according to claim 7, wherein: the outlet part of the furnace body (12) is provided with a lifting door (5), and the size of the lifting door (5) is larger than the maximum size of the furnace body (12).
9. The solid solution device of the seamless steel tube special for the high pressure boiler according to claim 8, wherein: the entry position of furnace body (12) is provided with crane (6), be provided with crossbeam (61) on crane (6), crossbeam (61) can move on the horizontal direction of crane (6), push rod (62) have been linked firmly on crossbeam (61), the tip of push rod (62) has linked firmly flexible door (7), flexible door (7) are formed by two telescopic hollow core plate nestings, and No. three fixedly connected with springs (71) between two telescopic hollow core plate bottoms, and are located inside telescopic hollow core plate inside horizontal fixedly connected with No. four springs (72).
10. The solid solution process of the solid solution device of the seamless steel tube specially used for the high-pressure boiler as claimed in the claims 1 to 9, comprising the following steps:
s1: the seamless steel pipe special for the high-pressure boiler is conveyed into the boiler body (12) through the conveying mechanism, the telescopic door (7) is controlled to enter the boiler body (12), and then the telescopic door (7) is controlled to move in the boiler body (12), so that the length of the interior of the boiler body (12) is changed, and the length of the steel pipe is met;
s2: the motor is started, the transmission shaft (131) is rotated, the transmission gear (132) is further rotated, the transmission gear (132) is rotated to drive the transmission rack (133), and the vertical telescopic plates (122) are close to or far away from each other; when the transmission shaft (131) rotates, the transmission shaft (131) winds the traction rope (2), the part A (123) and the part B (124) are pulled to be close to each other, namely the upper horizontal expansion plate and the lower horizontal expansion plate (121) contract under the combined action of the transmission gear (132), the transmission rack (133) and the traction rope (2), when the transmission shaft (131) releases the traction rope (2), the part A (123) and the part B (124) are far away from each other under the action of the first spring (3), and the horizontal expansion plate (121) above is extended;
s3: starting a transmission motor (144), wherein the transmission motor (144) drives a transmission screw rod (142) on the same side of the furnace body (12) to rotate together through the transmission of a belt (146), so that the vertical expansion plate (122) expands and contracts in the vertical direction; in the process, the size of the telescopic door (7) is changed, the telescopic door is matched with the inside of the furnace body (12), the lifting door (5) falls down again, the relative sealing of the furnace body (12) is realized, and then the solid solution operation is carried out;
s4: after the solid solution is finished, the lifting door (5) is lifted, the telescopic door (7) is continuously pushed, and then the steel pipe is pushed, so that the steel pipe is discharged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211028513.4A CN115386713A (en) | 2022-08-25 | 2022-08-25 | Solid solution process and device for seamless steel tube special for high-pressure boiler |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211028513.4A CN115386713A (en) | 2022-08-25 | 2022-08-25 | Solid solution process and device for seamless steel tube special for high-pressure boiler |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116536496A (en) * | 2023-04-24 | 2023-08-04 | 连云港兴鑫钢铁有限公司 | Heat treatment equipment for processing ferrous metal |
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- 2022-08-25 CN CN202211028513.4A patent/CN115386713A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116536496A (en) * | 2023-04-24 | 2023-08-04 | 连云港兴鑫钢铁有限公司 | Heat treatment equipment for processing ferrous metal |
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