阅读说明：本技术 多炉室高效钛管气体保护退火炉 (Multi-chamber high-efficiency titanium tube gas protection annealing furnace ) 是由 李新中 刘钢 于 2021-08-24 设计创作，主要内容包括：提供一种多炉室高效钛管气体保护退火炉,包括炉体和多个炉管,炉体和炉管的截面形状均呈方形环状结构,炉体底部设有用于驱动炉体纵向移动的纵移导向及驱动装置,炉管上设有与气源连通并用于向炉管内部充入保护气体的气体循环管组,炉管底部设有用于驱动炉管横移后进入或移出炉体的横移导向及驱动装置。本发明采用具有纵向移动功能的炉体和多个横向移动功能的炉管组成的多炉室钛管退火炉结构,解决了多炉室退火炉炉体过长而难以操控的弊端,通过优化炉体和炉管的形状,提高了炉管内各位置处长管的受热均匀性,在炉管上设置用于向炉管内部充入保护气体的气体循环管组,提高了热传导效率,长管退火效率和退火质量得到提升,炉管进出炉体效率高。(The utility model provides a high-efficient titanium pipe gas shielded annealing stove in many furnace chambers, includes furnace body and a plurality of boiler tubes, and the cross sectional shape of furnace body and boiler tube all is square annular structure, and the furnace body bottom is equipped with the vertical removal direction and the drive arrangement that are used for driving furnace body longitudinal movement, is equipped with on the boiler tube with the air supply intercommunication and be used for filling the gas circulation nest of tubes of protective gas into the boiler tube inside, and the boiler tube bottom is equipped with the sideslip direction and the drive arrangement that get into or shift out the furnace body after being used for driving the boiler tube sideslip. The invention adopts a multi-furnace chamber titanium tube annealing furnace structure consisting of a furnace body with a longitudinal moving function and a plurality of furnace tubes with a transverse moving function, solves the defect that the furnace body of the multi-furnace chamber annealing furnace is too long and is difficult to control, improves the heating uniformity of long tubes at each position in the furnace tubes by optimizing the shapes of the furnace body and the furnace tubes, improves the heat conduction efficiency by arranging the gas circulation tube group for filling protective gas into the furnace tubes on the furnace tubes, improves the long tube annealing efficiency and the annealing quality, and has high furnace tube inlet and outlet efficiency.)

1. The high-efficient titanium pipe gas shielded annealing stove of many furnace chambers, its characterized in that: the furnace comprises a furnace body (1) and a plurality of furnace tubes (2) arranged on the same side of a furnace opening of the furnace body (1), wherein the cross sections of the furnace body (1) and the furnace tubes (2) are both in a square annular structure, a longitudinal movement guiding and driving device used for driving the furnace body (1) to longitudinally move is arranged at the bottom of the furnace body (1), a gas circulation tube set communicated with a gas source and used for filling protective gas into the furnace tubes (2) is arranged on the furnace tubes (2), and a transverse movement guiding and driving device used for driving the furnace tubes (2) to transversely move and then enter or move out of the furnace body (1) is arranged at the bottom of the furnace tubes (2).

2. The multi-chamber high-efficiency titanium tube gas-shielded annealing furnace according to claim 1, characterized in that: the longitudinal movement guiding and driving device comprises a guiding component (3) and a longitudinal movement driving device (4), the guiding component (3) is arranged below the furnace body (1), the guiding component (3) is in adaptive connection with the longitudinal movement driving device (4) arranged on the furnace body (1), and the furnace body (1) is driven by the longitudinal driving device (4) to move along the length direction of the guiding component (3) under the guiding action of the guiding component (3).

3. The multi-chamber high-efficiency titanium tube gas-shielded annealing furnace according to claim 2, characterized in that: the guide assembly (3) comprises longitudinal guide rails (3-1) and longitudinal moving rollers (3-2), the longitudinal guide rails (3-1) which are arranged in parallel are laid below the furnace body (1) along the width direction of the furnace body (1), and the longitudinal moving rollers (3-2) which are distributed at the bottoms of the two long sides of the furnace body (1) are connected with the longitudinal moving driving device (4) and are adapted to the longitudinal guide rails (3-1) at corresponding positions.

4. The multi-chamber high-efficiency titanium tube gas-shielded annealing furnace according to claim 3, characterized in that: the longitudinal movement driving device (4) comprises a longitudinal movement motor (4-1), a driving shaft (4-2) and a driven shaft (4-3), a mounting seat (7) is fixed on the long side wall of one side of the furnace body (1), a longitudinal moving motor (4-1) is fixed on the mounting seat (7), the bottoms of the two long side sides of the furnace body (1) are respectively and rotatably provided with a driving shaft (4-2) and a driven shaft (4-3) through bearing seats, a plurality of longitudinal moving rollers (3-2) which correspond to and are matched with the lower longitudinal guide rail (3-1) are fixed on the driving shaft (4-2) and the driven shaft (4-3), after the longitudinal moving motor (4-1) drives the driving shaft (4-2) to rotate through the chain transmission component, the furnace body (1) can move along the length direction of the longitudinal guide rail (3-1).

5. The multi-chamber high-efficiency titanium tube gas-shielded annealing furnace according to claim 1, characterized in that: sideslip direction and drive arrangement includes sectional type guide assembly (5) and sideslip drive arrangement (6), furnace body (1) and boiler tube (2) length direction setting are followed in sectional type guide assembly (5), on boiler tube (2) below is laid to sectional type guide assembly (5) one section and another section is fixed in boiler body (1) interior bottom surface, furnace body (1) fire door outside is equipped with sideslip drive arrangement (6) of being connected with boiler tube (2) shift out or immigration furnace body (1) along sectional type guide assembly (5) length direction through sideslip drive arrangement (6) drive boiler tube (2) under the guiding action of sectional type guide assembly (5).

6. The multi-chamber high-efficiency titanium tube gas-shielded annealing furnace according to claim 5, characterized in that: the sectional type guide assembly (5) comprises a transverse moving guide rail I (5-1), a transverse moving rail II (5-2) and transverse moving rollers (5-3), wherein the two transverse moving guide rails I (5-1) which are parallel to each other are laid on the inner bottom surface of the furnace body (1), the two transverse moving rails II (5-2) laid below the furnace tube (2) are arranged at the same height corresponding to the positions of the two transverse moving guide rails I (5-1), the bottom surface of the furnace tube (2) is provided with a plurality of transverse moving rollers (5-3) matched with the two transverse moving guide rails I (5-1) or the transverse moving guide rails I (5-1), and the transverse moving rollers (5-3) move along the length direction of the transverse moving guide rails I (5-1) or the transverse moving rails II (5-2) under the driving of a transverse moving driving device (6).

7. The multi-chamber high-efficiency titanium tube gas-shielded annealing furnace according to claim 6, characterized in that: the transverse moving driving device (6) comprises a transverse moving motor (6-1), a transmission shaft (6-2), a rack (6-3) and a gear (6-4), the transmission shaft (6-2) is rotatably supported outside a furnace opening of the furnace body (1) through a bearing seat (6-5) and is positioned below the sectional type guide assembly (5), racks (6-3) are fixed on two sides of the bottom of the furnace tube (2) respectively, the racks (6-3) are meshed with the gear (6-4) fixed at the corresponding position on the transmission shaft (6-2), the transverse moving motor (6-1) is fixed outside the furnace body (1), the transverse moving motor (6-1) is connected with the transmission assembly connected with the transmission shaft (6-2), and the transverse moving motor (6-1) drives the transmission shaft (6-2) and the gear (6-4) to rotate so that the furnace tube (2) is driven by the furnace body (1) The furnace mouth automatically enters or moves out.

8. The multi-chamber high-efficiency titanium tube gas-shielded annealing furnace according to claim 1, characterized in that: the gas circulation pipe group comprises a gas inlet pipe (11) and a gas outlet pipe (8), the gas inlet pipe (11) with one end communicated to the bottom of the pipe body (2-1) and the other end extending out from the bottom wall of the pipe body (2-1) is paved on the inner bottom surface of the pipe body (2-1) in the furnace pipe (2), the extending end of the gas inlet pipe (11) is communicated with a gas source of protective gas through a pipeline, the gas outlet pipe (8) is arranged on the top wall of the pipe body (2-1) at the pipe orifice and communicated with the pipe body (2-1), the end part of the gas outlet pipe (8) is communicated with the lower end of the three-way joint (9), gas in the pipe body (2-1) is discharged from the gas outlet pipe (8) to the upper end opening of the three-way joint (9), and a protective gas detector (10) is arranged at the side end opening of the three-way joint (9).

9. The multi-chamber high-efficiency titanium tube gas-shielded annealing furnace according to any one of claims 1 to 8, characterized in that: the furnace tube (2) comprises a tube body (2-1) and a tube cover (2-2), a guide rail roller assembly (14) which is connected with a skip car (13) provided with a plurality of long tubes (12) in a matching mode is arranged on the inner bottom surface of the tube body (2-1), the skip car (13) is pushed into or pulled out of the tube body (2-1) rapidly through the guide of the guide rail roller assembly (14), the tube cover (2-2) is hinged to the tube opening of the tube body (2-1), heat insulation cotton (2-3) is fixed at the end portion of the tube opening of the tube body (2-1), and the tube cover (2-2) is fixed on the tube body (2-1) through a lock catch after the skip car (13) is pushed into the tube body (2-1).

Technical Field

The invention belongs to the technical field of annealing furnaces, and particularly relates to a multi-furnace-chamber high-efficiency titanium tube gas-shielded annealing furnace.

Background

The annealing furnace is a heat treatment furnace and is mainly used for annealing large carbon steel and alloy steel parts. The annealing furnace includes: a car-type annealing furnace, a box-type annealing furnace, a hood-type annealing furnace, a continuous bright annealing furnace and a hood-type bright annealing furnace. A box-type annealing furnace is generally used for performing conventional heat treatment such as quenching, normalizing, and annealing of a titanium material.

At present, most of titanium metal pipe annealing furnaces adopt vacuum annealing furnaces, and in the annealing process, furnace tubes in the vacuum furnaces need to be continuously vacuumized to ensure the annealing quality of titanium pipes, but because the outside has certain pressure on the vacuumized furnace tubes, in order to ensure the uniformity of the pressure of each part of the furnace tubes and the shape of the furnace tubes, only furnace tube circles with circular structures can be adopted, and the circular furnace tubes have the problem that the titanium pipes placed in the furnace tubes are heated unevenly from outside to inside after the furnace tubes are heated in the vacuum returning process, the titanium pipes at different positions have large heating temperature difference, so that the annealing heat preservation time is long, the annealing efficiency is low, the investment of vacuum annealing equipment is large, the process equipment is complex, and the operation difficulty is large; the existing double-furnace chamber annealing furnace adopts a double-furnace chamber (furnace tube) structure that two inlets are respectively positioned at two end parts of a furnace body in the length direction of the furnace body, the furnace chamber (furnace tube) positioned in front of the furnace body in the moving direction is arranged in a hearth at the corresponding end by moving the furnace body, the titanium tubes in the furnace chamber (furnace tube) are annealed, after the annealing treatment is finished, the furnace body moves in reverse phase, the furnace chamber (furnace tube) at the other end is arranged in the hearth at the corresponding end, and the titanium tubes in the furnace chamber (furnace tube) are annealed, so that the titanium tubes in the furnace chambers (furnace tubes) at the two ends are heated and returned in sequence.

Disclosure of Invention

The technical problems solved by the invention are as follows: the utility model provides a high-efficient titanium pipe gas shielded annealing stove in multi-furnace chamber, adopt the multi-furnace chamber titanium pipe annealing stove structure that the furnace body that has the longitudinal movement function and the boiler tube of a plurality of lateral shifting functions are constituteed, the drawback that multi-furnace chamber annealing stove furnace body overlength and be difficult to control has been solved, and through optimizing the shape of furnace body and boiler tube, the homogeneity of being heated of each position department long tube in the boiler tube has been improved, set up the gas circulation nest of tubes that is used for filling protective gas to boiler tube inside on the boiler tube, the heat conduction efficiency is improved, long tube annealing efficiency and annealing quality obtain promoting, the boiler tube business turn over is efficient of furnace body.

The technical scheme adopted by the invention is as follows: the multi-furnace-chamber high-efficiency titanium tube gas-shielded annealing furnace comprises a furnace body and a plurality of furnace tubes arranged on the same side of a furnace opening of the furnace body, wherein the cross sections of the furnace body and the furnace tubes are in square annular structures, the bottom of the furnace body is provided with a longitudinal movement guiding and driving device for driving the furnace body to longitudinally move, the furnace tubes are provided with gas circulation tube groups communicated with a gas source and used for filling protective gas into the furnace tubes, and the bottom of the furnace tubes is provided with a transverse movement guiding and driving device for driving the furnace tubes to transversely move and then enter or move out of the furnace body.

The longitudinal movement guiding and driving device comprises a guiding assembly and a longitudinal movement driving device, the guiding assembly is arranged below the furnace body, the guiding assembly is in adaptive connection with the longitudinal movement driving device arranged on the furnace body, and the furnace body is driven by the longitudinal driving device to move along the length direction of the guiding assembly under the guiding action of the guiding assembly.

Further, the direction subassembly includes longitudinal rail and indulges and moves the gyro wheel, and the furnace body below is laid along furnace body width direction to many mutual parallel arrangement's longitudinal rail, distributes and moves the gyro wheel with indulging a plurality of long limit side bottoms of furnace body and move drive arrangement and be connected and the adaptation on the longitudinal rail of corresponding position department.

Further, indulge and move drive arrangement including indulging and move motor, driving shaft and driven shaft, be fixed with the mount pad on the furnace body one side long limit wall and indulge and move the motor and be fixed in on the mount pad, the furnace body both sides bottom of long limit side rotates respectively through the bearing frame and installs driving shaft and driven shaft, all be fixed with a plurality of longitudinal guide rail position that correspond with the below respectively and the gyro wheel that indulges of adaptation on driving shaft and the driven shaft, indulge and move the motor and pass through chain drive assembly drive driving shaft rotation back, realize the furnace body along the removal of longitudinal guide rail length direction.

Furthermore, the transverse moving guide and driving device comprises a sectional type guide assembly and a transverse moving driving device, the sectional type guide assembly is arranged along the length direction of the furnace body and the furnace tube, one section of the sectional type guide assembly is laid below the furnace tube, the other section of the sectional type guide assembly is fixed on the inner bottom surface of the furnace body, the transverse moving driving device connected with the furnace tube is arranged outside a furnace mouth of the furnace body, and the furnace tube is driven by the transverse moving driving device to move out of or into the furnace body along the length direction of the sectional type guide assembly under the guide effect of the sectional type guide assembly.

Furthermore, the sectional type guide assembly comprises a transverse moving guide rail I, a transverse moving rail II and a transverse moving roller, wherein the two transverse moving guide rails I which are parallel to each other are laid on the inner bottom surface of the furnace body, the two transverse moving rails II which are laid below the furnace tube correspond to the two transverse moving guide rails I in position and are arranged at the same height, the transverse moving roller which is matched with the two transverse moving guide rails I or the transverse moving guide rails I is installed on the bottom surface of the furnace tube, and the transverse moving roller moves along the length direction of the transverse moving guide rails I or the transverse moving rails II under the driving of a transverse moving driving device.

Furthermore, the transverse moving driving device comprises a transverse moving motor, a transmission shaft, a rack and a gear, the transmission shaft is rotatably supported outside the furnace mouth of the furnace body through a bearing seat and is positioned below the sectional type guide assembly, the racks are fixed on two sides of the bottom of the furnace tube and are meshed with the gear fixed at the corresponding position on the transmission shaft, the transverse moving motor is fixed outside the furnace body and is connected with the transmission assembly through the transmission shaft, and the transverse moving motor drives the transmission shaft and the gear to rotate so as to enable the furnace tube to automatically enter or move out from the furnace mouth of the furnace body.

Further, the gas circulation nest of tubes includes intake pipe and outlet duct, the interior bottom surface upper berth of body is equipped with the intake pipe that one end leads to body socle department and the other end is stretched out by body mouth of pipe department diapire in the boiler tube the intake pipe stretches out the end and passes through pipeline and protective gas's air supply intercommunication, the outlet duct is located on the roof of body mouth of pipe department and with the body intercommunication, outlet duct tip and three way connection lower extreme intercommunication, and the gas in the body is discharged through outlet duct to three way connection upper port, the three way connection side port is equipped with the protective gas detector.

Further, the boiler tube comprises a tube body and a tube cover, wherein a guide rail roller assembly which is connected with the skip car with the long tubes in an adaptive mode is arranged on the inner bottom surface of the tube body, the skip car is pushed into or pulled out of the tube body fast through the guide of the guide rail roller assembly, the tube cover is hinged to the opening of the tube body, heat preservation cotton is fixed to the end portion of the tube opening of the tube body, and the tube cover is fixed to the tube body through a lock catch after the skip car is pushed into the tube body.

Compared with the prior art, the invention has the advantages that:

1. the technical scheme adopts a multi-furnace chamber titanium tube annealing furnace structure consisting of a furnace body with a longitudinal moving function and a plurality of furnace tubes with a transverse moving function, solves the defect that the furnace body of the multi-furnace chamber annealing furnace is too long and is difficult to control, greatly reduces the length of the furnace body, has a large number of furnace chambers and improves the annealing efficiency of long tubes;

2. according to the technical scheme, by optimizing the shapes of the furnace body and the furnace tube, the heating uniformity of the long tube at each position in the furnace tube is improved, the annealing and heating time is shortened, and conditions are provided for the long tube annealing efficiency;

3. according to the technical scheme, the gas circulation tube group used for filling the protective gas into the furnace tube is arranged on the furnace tube, so that the heat conduction efficiency is improved, the long tube annealing efficiency and the annealing quality are improved, and the efficiency of the furnace tube entering and exiting the furnace body is high;

4. according to the technical scheme, the guide rail roller wheel assembly is arranged between the pipe body and the skip car, so that the skip car provided with the long pipe can conveniently and quickly enter and exit the pipe body, the difficulty and the working strength of loading and discharging of the long pipe in the pipe body are reduced, and the loading and unloading efficiency of the long pipe is improved;

5. the technical scheme has the advantages of simple structure, novel design, high heat conduction efficiency, improved annealing quality and efficiency and higher use value.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic view of the position relationship between the longitudinal movement guiding and driving device and the furnace body and the furnace tube according to the present invention;

FIG. 3 is a front view of a furnace tube with a gas circulation tube assembly according to the present invention installed in a furnace body;

FIG. 4 is a right side view of a furnace tube with a gas circulation tube assembly according to the present invention installed in a furnace body;

FIG. 5 is a schematic view of the traverse guide and drive apparatus of the present invention.

Detailed Description

In the following, an embodiment of the present invention will be described in conjunction with fig. 1 to 5, so as to clearly and completely describe the technical solutions, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, not the whole embodiment.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

The multi-furnace chamber high-efficiency titanium tube gas protection annealing furnace comprises a furnace body 1 and a plurality of furnace tubes 2 arranged on the same side of a furnace opening of the furnace body 1, wherein the cross sections of the furnace body 1 and the furnace tubes 2 are both in a square annular structure, a longitudinal movement guiding and driving device for driving the furnace body 1 to longitudinally move is arranged at the bottom of the furnace body 1, a gas circulating tube group communicated with a gas source and used for filling protective gas into the furnace tubes 2 is arranged on the furnace tubes 2, and a transverse movement guiding and driving device for driving the furnace tubes 2 to transversely move and then enter or move out of the furnace body 1 is arranged at the bottom of the furnace tubes 2; in the structure, the multi-furnace chamber titanium tube annealing furnace structure consisting of the furnace body 1 with the longitudinal moving function and the furnace tubes 2 with the plurality of transverse moving functions is adopted, so that the defect that the furnace body 1 of the multi-furnace chamber annealing furnace is too long and is difficult to control is overcome, the length of the furnace body is greatly reduced, the number of the furnace chambers is large, and the annealing efficiency of long tubes is improved; the realization of the longitudinal movement function of the furnace body is completed under the guidance and the drive of a longitudinal movement guiding and driving device arranged at the bottom of the furnace body 1; the realization of the lateral movement function of the furnace tube 2 is completed by the guiding and driving of a lateral movement guiding and driving device arranged at the bottom of the furnace tube 2; by optimizing the shapes of the furnace body and the furnace tube and adopting the furnace body 1 and the furnace tube 2 with square annular decoupling strands in cross section shapes, the long tube 12 filled in the furnace tube 2 is uniformly heated, the heating uniformity of the long tube at each position in the furnace tube is improved, the annealing heating time is shortened, the heating time is shortened to 6-8 hours from about 12 hours of the conventional vacuum annealing furnace, and conditions are provided for the annealing efficiency of the long tube 12; the gas circulation tube group used for filling protective gas into the furnace tube 2 is arranged on the furnace tube 2, so that the heat conduction efficiency of the heat in the furnace tube 2 is improved, the annealing efficiency and the annealing quality of the long tube 12 are improved, and the efficiency of the furnace tube 2 in and out of the furnace body is high;

the longitudinal movement guiding and driving device comprises the following specific components: the longitudinal movement guiding and driving device comprises a guiding component 3 and a longitudinal movement driving device 4, the guiding component 3 is arranged below the furnace body 1, the guiding component 3 is in adaptive connection with the longitudinal movement driving device 4 arranged on the furnace body 1, and the furnace body 1 is driven by the longitudinal movement driving device 4 to move along the length direction of the guiding component 3 under the guiding action of the guiding component 3.

The guide assembly 3 is embodied as follows: the guide assembly 3 comprises a longitudinal guide rail 3-1 and longitudinal moving rollers 3-2, the longitudinal guide rails 3-1 arranged in parallel are laid below the furnace body 1 along the width direction of the furnace body 1, and a plurality of longitudinal moving rollers 3-2 distributed at the bottoms of the two long sides of the furnace body 1 are connected with the longitudinal moving driving device 4 and are adapted to the longitudinal guide rails 3-1 at corresponding positions;

the specific structure of the longitudinal movement driving device 4 is as follows: the longitudinal movement driving device 4 comprises a longitudinal movement motor 4-1, a driving shaft 4-2 and a driven shaft 4-3, a mounting seat 7 is fixed on the long side wall of one side of the furnace body 1, the longitudinal movement motor 4-1 is fixed on the mounting seat 7, the driving shaft 4-2 and the driven shaft 4-3 are respectively and rotatably mounted at the bottom of the two long side sides of the furnace body 1 through bearing seats, a plurality of longitudinal movement rollers 3-2 which respectively correspond to and are matched with the positions of the longitudinal guide rails 3-1 below are respectively fixed on the driving shaft 4-2 and the driven shaft 4-3, and the longitudinal movement motor 4-1 drives the driving shaft 4-2 to rotate through a chain transmission assembly, so that the furnace body 1 can move along the length direction of the longitudinal guide rails 3-1.

The transverse moving guide and drive device comprises the following components: the transverse moving guide and driving device comprises a sectional type guide component 5 and a transverse moving driving device 6, the sectional type guide component 5 is arranged along the length directions of the furnace body 1 and the furnace tube 2, one section of the sectional type guide component 5 is laid below the furnace tube 2, the other section of the sectional type guide component 5 is fixed on the inner bottom surface of the furnace body 1, the transverse moving driving device 6 connected with the furnace tube 2 is arranged outside the fire hole of the furnace body 1, and the furnace tube 2 is driven by the transverse moving driving device 6 to move out or move into the furnace body 1 along the length direction of the sectional type guide component 5 under the guide effect of the sectional type guide component 5.

The specific structure of the segmented guide assembly 5 is as follows: the sectional type guide assembly 5 comprises a transverse moving guide rail I5-1, a transverse moving rail II 5-2 and transverse moving rollers 5-3, the two transverse moving guide rails I5-1 which are parallel to each other are laid on the inner bottom surface of the furnace body 1, the two transverse moving rails II 5-2 laid below the furnace tube 2 are arranged at the same height corresponding to the positions of the two transverse moving guide rails I5-1, the bottom surface of the furnace tube 2 is provided with a plurality of transverse moving rollers 5-3 matched with the two transverse moving guide rails I5-1 or the transverse moving guide rails I5-1, and the transverse moving rollers 5-3 are driven by a transverse moving driving device 6 to move along the length direction of the transverse moving guide rails I5-1 or the transverse moving rails II 5-2.

The traverse driving device 6 has the following specific structure: the transverse moving driving device 6 comprises a transverse moving motor 6-1, a transmission shaft 6-2, a rack 6-3 and a gear 6-4, the transmission shaft 6-2 is rotatably supported outside a furnace opening of the furnace body 1 through a bearing seat 6-5 and is positioned below the sectional type guide assembly 5, the racks 6-3 are fixed on two sides of the bottom of the furnace tube 2, the racks 6-3 are meshed with the gear 6-4 fixed at the corresponding position on the transmission shaft 6-2, the transverse moving motor 6-1 is fixed outside the furnace body 1, the transverse moving motor 6-1 is connected through a transmission assembly connected with the transmission shaft 6-2, and the transverse moving motor 6-1 drives the transmission shaft 6-2 and the gear 6-4 to rotate so as to realize automatic entering or moving-out of the furnace tube 2 from the furnace opening of the furnace body 1.

The specific structure of the gas circulation tube group is as follows: the gas circulation pipe group comprises a gas inlet pipe 11 and a gas outlet pipe 8, the gas inlet pipe 11 with one end communicated with the bottom of the pipe body 2-1 and the other end extending out of the bottom wall of the pipe body 2-1 is paved on the inner bottom surface of the pipe body 2-1 in the furnace pipe 2, the extending end of the gas inlet pipe 11 is communicated with a gas source of protective gas through a pipeline, the gas outlet pipe 8 is arranged on the top wall of the pipe body 2-1 at the pipe opening and is communicated with the pipe body 2-1, the end part of the gas outlet pipe 8 is communicated with the lower end of a three-way joint 9, gas in the pipe body 2-1 is discharged from the gas outlet pipe 8 to the upper end opening of the three-way joint 9, and a protective gas detector 10 is arranged at the side end opening of the three-way joint 9.

The specific structure and feeding structure of the furnace tube 2 are as follows: the furnace tube 2 comprises a tube body 2-1 and a tube cover 2-2, wherein a guide rail roller assembly 14 which is in adaptive connection with a skip 13 provided with a plurality of long tubes 12 is arranged on the inner bottom surface of the tube body 2-1, the skip 13 is quickly pushed into or pulled out of the tube body 2-1 through the guide of the guide rail roller assembly 14, the tube cover 2-2 is hinged to the tube opening of the tube body 2-1, heat preservation cotton 2-3 is fixed at the end part of the tube opening of the tube body 2-1, and the tube cover 2-2 is fixed on the tube body 2-1 through a lock catch after the skip 13 is pushed into the tube body 2-1; in the structure, the guide rail roller assembly 14 is arranged between the pipe body 2-1 and the skip 13, so that the skip 13 provided with the long pipe 12 can conveniently and quickly enter and exit the pipe body 2-1, the difficulty and the working strength of loading and discharging the long pipe 12 in the pipe body 2-1 are reduced, and the loading and unloading efficiency of the long pipe is improved;

in the technical scheme, the long pipe is annealed in a gas protection mode, so that gas convection is formed in the furnace tube 2 after heat radiation, and the heat transfer on the long pipe 12 is accelerated; the carding of the furnace tubes 2 can be theoretically provided with a plurality of furnace tubes, so that the number of furnace chambers is greatly increased compared with the conventional furnace tubes 2 arranged at two ends of the furnace body 1; the furnace tube 2 adopts a structure consisting of a tube body 2-1 and a tube cover 2-2, heat insulation cotton 2-3 is fixed at the end part of the tube opening of the tube body 2-1, and the heat insulation cotton 2-3 is positioned between the tube cover 2-2 and the tank body 2-1 after the tube cover 2-2 is covered, so that the rapid loss of protective gas and heat in the tube body 2-1 is avoided, meanwhile, the potential safety hazard caused by overhigh temperature of the tube cover 2-2 can be avoided, and the scalding of operators is avoided; simple structure, the modern design, heat-conduction efficiency is high, and annealing quality and efficiency all obtain improving, have higher use value.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.