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CN-224227140-U - Annealing furnace for producing seamless steel pipes

CN224227140UCN 224227140 UCN224227140 UCN 224227140UCN-224227140-U

Abstract

The utility model discloses an annealing furnace for seamless steel tube production, which structurally comprises a furnace seat and a furnace body positioned above the furnace seat, wherein a feed inlet is formed in the furnace body, a conveying frame is arranged at the outer side of the feed inlet, the interior of the furnace body is divided into a first compartment and a second compartment by a partition plate, the partition plate is provided with a material passing through hole, the first compartment corresponds to the feed inlet in position, the top of the partition plate is provided with a heating element, the upper surface of the conveying frame and the upper surface of the first compartment are provided with a plurality of roller frames for conveying pipes in an arrayed manner, a discharge channel is formed in the bottom wall of the second compartment, the opening end of the discharge channel extends to the front side of the furnace seat, a lifting component for lifting the pipes is arranged in the first compartment, and the pipes enter the second compartment through the material passing through hole and are discharged out of the furnace body through the discharge channel after being lifted to a preset height.

Inventors

  • LU CHANGHUA
  • Xiang Youqiang
  • SUN KEHUI

Assignees

  • 浙江强兴特钢有限公司

Dates

Publication Date
20260512
Application Date
20250529

Claims (7)

  1. 1. An annealing furnace for seamless steel tube production comprises a furnace seat (1) and a furnace body (2) arranged above the furnace seat (1), and is characterized in that a feeding hole (20) is formed in the furnace body (2) and a conveying frame (3) is arranged on the outer side of the feeding hole (20), the interior of the furnace body (2) is divided into a first compartment (22) and a second compartment (23) through a partition plate (21), a material passing through hole (24) is formed in the partition plate (21), heating elements (25) are arranged at the top of the first compartment (22) corresponding to the feeding hole (20), a plurality of roller frames (30) for conveying tubes are arranged on the upper surface of the conveying frame (3) and the upper surface of the first compartment (22), a discharging channel (4) is formed on the inner bottom wall of the second compartment (23), the opening end of the discharging channel (4) extends to the front side of the furnace seat (1), a component for lifting the tubes is arranged in the first compartment (22), and the tubes enter the second compartment (23) through the material passing through the hole (24) and are discharged out of the discharging channel (2) after reaching a preset height.
  2. 2. The annealing furnace for producing seamless steel pipes according to claim 1, wherein the roller frame (30) comprises a frame body (31), the frame body (31) is of a U-shaped structure and is provided with an assembly section (32) in a forming mode, a V-shaped roller (33) is arranged in the assembly section (32), a power source (34) is arranged on the outer side of one of the frame bodies (31), and an output shaft of the power source (34) is in driving connection with the V-shaped roller (33).
  3. 3. The annealing furnace for producing seamless steel pipes according to claim 2, wherein four fastening holes (35) are formed at four corners of the inner bottom of the assembly section (32), and each fastening hole (35) is connected with a fastener (36).
  4. 4. The annealing furnace for producing seamless steel pipes according to claim 1, wherein a plurality of guide cylinders (5) are distributed on the inner wall of the furnace body (2) at the positions corresponding to the roller frames (30), the guide cylinders (5) are connected with guide columns (50), the guide columns (50) are connected with a buffer plate (51) together, a plurality of shock absorbers (52) are distributed on the inner wall of the annealing furnace at the positions corresponding to the buffer plate (51), and the other ends of the shock absorbers (52) are connected with the buffer plate (51).
  5. 5. The annealing furnace for producing seamless steel pipes according to claim 1, wherein two guide blocks (40) are correspondingly formed on the left side and the right side of the discharge channel (4) in the second compartment (23), and the two guide blocks (40) are respectively formed with a guide slope (41) which is matched with the opening of the discharge channel (4).
  6. 6. The annealing furnace for producing seamless steel pipes according to claim 1, wherein the lifting assembly comprises a plurality of lifting units (6), one lifting unit (6) is arranged between every two adjacent roller frames (30) in the first compartment (22), the lifting units (6) comprise lifting blocks (60), guide inclined planes (61) are formed on the lifting blocks (60), two sliding rods (62) are correspondingly arranged at the bottoms of the lifting blocks (60), first guide sleeves (63) are correspondingly arranged at the bottoms of the furnace body (2) at the positions corresponding to the sliding rods (62), and the lifting blocks (60) perform lifting/resetting actions of sliding up and down through the cooperation between the sliding rods (62) and the guide sleeves.
  7. 7. The annealing furnace for producing seamless steel pipes according to claim 6, wherein a driving rod (64) is arranged at the bottom of the lifting block (60) and positioned at the center of the two sliding rods (62), a second guide sleeve (65) is arranged at the bottom of the furnace body (2) and positioned at the corresponding position of the driving rod (64), driving sources (66) are fixedly arranged at the inner bottom of the furnace seat (1) and positioned at the corresponding position of each driving rod (64), and an output shaft of each driving source (66) is in driving connection with the corresponding driving rod (64).

Description

Annealing furnace for producing seamless steel pipes Technical Field The utility model relates to the technical field of seamless steel tube production, in particular to an annealing furnace for seamless steel tube production. Background Stainless steel pipe is a hollow strip steel, can divide into seamless steel pipe and welded steel pipe two kinds, and a large amount of pipeline that is used as transport fluid need pass through a plurality of processing procedures and accomplish the manufacturing, and when stainless steel pipe was manufactured, people usually can anneal stainless steel pipe, and annealing equipment is stainless steel continuous annealing stove, mainly used carries out heat treatment to stainless steel finished product to reach hardness reduction, improvement plasticity, refinement article grain, even steel structure composition's purpose, and during annealing, stainless steel pipe material loading is carried in the annealing stove and is carried out heat treatment, and the unloading is carried to next processing procedure after the stainless steel pipe annealing is accomplished. At present, although the traditional seamless steel tube annealing furnace can realize the heating annealing treatment of the steel tube, obvious technical bottlenecks exist in the blanking link after annealing, and the conventional majority of annealing furnaces need to rely on manual or additional auxiliary equipment to carry out blanking operation after the steel tube is annealed, so that the full-flow automation from annealing to blanking cannot be realized. The manual blanking is low in efficiency and high in labor intensity, potential safety hazards such as scalding of operators by the high-temperature steel pipe exist, equipment cost and occupied area are increased by means of additional auxiliary equipment blanking, the problems of unsmooth connection between equipment and high failure rate exist, and the requirements of high efficiency, continuity and automation of the production of the modern seamless steel pipe are difficult to meet. Disclosure of utility model Aiming at the defects of the prior art, the utility model aims to provide an annealing furnace for producing seamless steel pipes so as to solve the technical problems. The annealing furnace for seamless steel pipe production comprises a furnace seat and a furnace body arranged above the furnace seat, wherein a feed inlet is formed in the furnace body, a conveying frame is arranged on the outer side of the feed inlet, the interior of the furnace body is divided into a first compartment and a second compartment through a partition plate, the partition plate is provided with a material passing through hole, the first compartment corresponds to the feed inlet in position and is provided with heating elements at the top, a plurality of roller frames for conveying pipes are arranged on the upper surface of the conveying frame and the upper surface of the first compartment, a discharge channel is formed in the bottom wall of the second compartment, the opening end of the discharge channel extends to the front side of the furnace seat, a lifting component for lifting the pipes is arranged in the first compartment, and the pipes enter the second compartment through the material passing through hole after being lifted to a preset height and are discharged out of the furnace body through the discharge channel. The utility model further provides that the roller frame comprises a frame body which is of a U-shaped structure and is provided with an assembly section in a forming mode, a V-shaped roller is arranged in the assembly section, a power source is arranged on the outer side of one frame body, and an output shaft of the power source is in driving connection with the V-shaped roller. The utility model is further provided that four fastening holes are formed at four corners of the bottom in the assembly region, and each fastening hole is connected with a fastening piece. The utility model is further provided with a plurality of guide cylinders distributed at the positions of the inner wall of the furnace body corresponding to the roller frames, wherein each guide cylinder is connected with a guide post, each guide post is connected with a buffer plate together, a plurality of shock absorbers are distributed at the positions of the inner wall of the annealing furnace corresponding to the buffer plates, and the other ends of the shock absorbers are connected with the buffer plates. The utility model is further provided that the bottom wall of the second compartment is positioned at the left side and the right side of the discharging channel and is correspondingly formed with two guide blocks, and the two guide blocks are both formed with guide slopes which are matched with the opening of the discharging channel. The lifting assembly comprises a plurality of lifting units, wherein one lifting unit is arranged between every two adjacent roller frames in the f