CN217377951U - Resistance annealing stove based on furnace body removes - Google Patents

Abstract

The utility model belongs to the technical field of heat treatment, in particular to a resistance annealing furnace based on furnace body movement, which comprises a fixed carrying platform, a movable furnace body, a furnace body running device, a guide rail device, a lifting furnace bottom sealing mechanism and an electrical control device; the guide rail device is fixedly arranged on the ground, and the furnace body operation device is arranged at the bottom of the movable furnace body; a furnace mouth is arranged on the left side of the movable furnace body, and a stoplog type furnace mouth sealing mechanism is arranged at the furnace mouth; the fixed carrying platform is arranged on the left side of the movable furnace body; the lifting furnace bottom sealing mechanism is arranged along the peripheral edge of the fixed carrying platform; the electric control device is arranged on the movable furnace body. According to the technical scheme, the fixed carrying platform and the movable furnace body are arranged, the movable furnace body with relatively light weight is controlled to move through the furnace body operation device, and the problem that annealing heat treatment of an ultra-large and overweight welding part is difficult is solved on the premise that a high-difficulty trolley does not need to be developed.

Description

Resistance annealing stove based on furnace body removes

Technical Field

The utility model belongs to the technical field of heat treatment, especially, relate to a resistance annealing stove based on furnace body removes.

Background

With the economic development and the technological progress, the engineering construction technology in the fields of hydropower, nuclear power, chemical engineering, ships and the like in China is continuously improved. In such projects, a large number of welding parts are used, part of key parts have complex structures, special use conditions and high technical requirements, reliable annealing heat treatment needs to be carried out after welding, reduction and homogenization of internal stress are ensured, and the metallographic structure form of a welding area is optimized, so that the plasticity, toughness, fatigue resistance, corrosion resistance and processability of the metallographic structure are improved, for example, various pressure vessels, ship body modules and the like for hydropower stations, nuclear power stations and chemical plants are used.

The most reliable heating scheme for annealing heat treatment is to integrally load the part into a closed hearth and heat the part according to the process requirements to finish annealing. However, in some large and ultra-large engineering constructions, the welded parts to be annealed have the characteristics of ultra-large single size and single weight and ultra-heavy weight, and the high-quality annealing heat treatment is difficult to be completed by adopting the existing heating equipment. In the prior art, the aim of annealing for eliminating stress can be achieved by locally heating a weld joint and a heat affected zone thereof, mainly because a welded part needing annealing is overlarge and overweight and cannot be arranged in a heat treatment furnace for integral heating, but the heat treatment and annealing effects are difficult to accurately evaluate by adopting the method.

In the prior art, a trolley furnace is adopted to integrally load a welding part into a hearth to finish heating and annealing. However, when the external dimensions and the weight of the parts reach a certain level, the following problems exist in the conventional heating furnace: 1. the whole ultra-large furnace body is difficult to manufacture, and the weight is too heavy in the conventional method; 2. to ensure that an overweight workpiece is arranged on the trolley and can stably, safely and reliably enter and exit the hearth, higher requirements are provided for the bearing capacity, the running mechanism and the running mode of the trolley, the design complexity of the trolley is greatly increased, the height of a furnace body is increased, and meanwhile, the manufacturing cost of the heating furnace is greatly increased. Conventional techniques are then used, namely: the heating scheme of moving the workpiece along with the trolley and charging the workpiece is difficult to apply to the annealing of the ultra-large and overweight welding part.

Disclosure of Invention

The utility model discloses not enough to prior art exists, provide a resistance annealing stove based on the furnace body removes, equipment is high-efficient, energy-conserving, for prior art, this technical scheme reduces equipment complexity, promotes to imitate to take than. The method comprises the following specific steps:

a resistance annealing furnace based on furnace body movement comprises a fixed carrying platform, a movable furnace body, a furnace body running device, a guide rail device, a lifting furnace bottom sealing mechanism and an electric control device; the guide rail device is fixedly arranged on the ground, and the furnace body operation device is arranged at the bottom of the movable furnace body and is used for supporting, driving and guiding the movable furnace body on the guide rail device; a furnace mouth is formed in the left side of the movable furnace body, and a stoplog type furnace mouth sealing mechanism is installed at the furnace mouth; the fixed carrying platform is arranged on the left side of the movable furnace body and is fixedly connected with the ground; the lifting furnace bottom sealing mechanism is arranged along the peripheral edge of the fixed carrying platform and is fixedly connected with the ground; the electric control device is arranged on the movable furnace body, and the fixed carrying platform, the movable furnace body, the furnace body running device and the lifting furnace bottom sealing mechanism are respectively and electrically connected with the electric control device.

Preferably, the fixed carrying platform comprises a platform body and a heating unit I; the platform body comprises a platform frame, and a heat-insulating fiber layer II, a refractory brick layer and a refractory concrete layer are sequentially arranged in the platform frame from bottom to top; the heating unit I is embedded into the fireproof concrete layer, and a cushion block is arranged at the top of the fireproof concrete layer.

Preferably, the platform body is divided into a left end module, a middle module and a right end module along the length direction of the guide rail device, the number of the middle modules is a plurality, and adjacent modules are in tensioning splicing through screw assemblies.

Preferably, the top of the refractory concrete layer is provided with a groove for installing the heating unit I, and a heat-insulating fiber layer I and a laying brick are sequentially arranged in the groove from bottom to top; heating unit I is including connecing electric installation I and setting up resistance band I on putting the brick, resistance band I through connect electric installation I with electrical control device electric connection.

Preferably, the movable furnace body comprises a furnace body frame and a heating unit II, and a ceramic fiber furnace lining is arranged on the inner wall of the furnace body frame; and the heating unit II comprises a power connection device II and a resistance band II arranged on the ceramic fiber furnace lining, and the resistance band II is electrically connected with the electrical control device through the power connection device II.

Preferably, the movable furnace body is divided into a left end module, a middle module and a right end module along the length direction of the guide rail device, the number of the middle modules is a plurality, and adjacent modules are in tensioning splicing through screw assemblies.

Preferably, the stoplog type furnace mouth sealing mechanism comprises a furnace door frame, a framework unit and a roller unit; the furnace door frame is provided with a wedge angle guide rail; the roller units are arranged on the framework units and are in rolling connection with the wedge angle guide rails; one side of the framework unit facing the furnace mouth of the movable furnace body is fixed with a heat-insulating furnace lining.

Preferably, the lifting furnace bottom sealing mechanism comprises a furnace body sand sealing knife arranged at the bottom of the movable furnace body, platform sand sealing knives arranged on the front side, the rear side and the right side of the fixed carrying platform, and sand sealing grooves arranged around the fixed carrying platform, wherein a plurality of lifting cylinders are arranged at the bottom of each sand sealing groove at intervals, and sealing sand is filled in each sand sealing groove.

Preferably, the guide rail device comprises two parallel rails and limit stops arranged at two ends of the rails.

Preferably, the furnace body running device comprises a furnace bottom beam, a roller trolley, a driving wheel device and a guide wheel device, and the roller trolley, the driving wheel device and the guide wheel device are fixedly arranged at the bottom of the movable furnace body through the furnace bottom beam.

Preferably, the roller trolley is of a chain roller structure and comprises a roller support, a roller main body is installed in the roller support, and the roller support is installed at the bottom of the bottom beam of the furnace bottom through a bolt.

Preferably, the driving wheel device comprises a speed reducer, a gear shaft, a gear ring, a roller I, a roller shaft and a bearing I; the bearing I is embedded in an inner hole of the roller I, the roller shaft axially penetrates through the bearing I, and two ends of the roller shaft are fixedly connected with the bottom beam of the furnace bottom respectively; the speed reducer is fixed on the outer side of the bottom beam of the furnace through a bolt, a power output shaft of the speed reducer is connected with a gear shaft through an internal spline, and two ends of the gear shaft are respectively connected with the bottom beam of the furnace through a bearing piece; the gear ring is meshed with the gear shaft and is connected with the roller I through a bolt and a shear pin.

Preferably, the guide wheel device comprises a guide support and two guide wheel bodies symmetrically arranged on two sides of the corresponding track; the guide support is fixedly connected with the bottom beams of the furnace through a bolt connecting piece, two guide wheel shafts which are in one-to-one correspondence with the guide wheel bodies are arranged on the guide support, and the guide wheel bodies are coaxially and rotatably connected with the guide wheel shafts through guide wheel bearings.

Preferably, the electrical control device comprises a backpack electrical control cabinet, a cable drag chain, a temperature measurement sensing unit and an operation box; an electrical control system is arranged in the backpack type electrical control cabinet, and the operation box is electrically connected with the electrical control system; the electric control system comprises a temperature measuring unit, a recording unit, a heating control unit and a furnace body operation control unit, and the temperature measuring sensing unit is electrically connected with the temperature measuring unit; one end of the cable drag chain is fixedly connected with the ground, and the other end of the cable drag chain is fixedly connected with the movable furnace body; the backpack type electric control cabinet is connected with a plurality of cables, and all or part of the cables are fixed in a cable drag chain.

Compared with the prior art, the technical scheme has the following advantages:

1) this technical scheme is through setting up fixed cargo platform and portable furnace body, and the portable furnace body that controls relative weight through furnace body running gear is lighter removes, under the prerequisite that need not to develop high difficulty platform truck, has solved super large overweight welding piece annealing thermal treatment and has had the problem of difficulty to through setting up over-and-under type stove bottom sealing mechanism, with fixed cargo platform and portable furnace body perfect adaptation, laid good basis for realizing the stable control by temperature change of portable furnace body internal environment.

2) This technical scheme has adopted a fixed objective platform structure, has contained heat preservation fibre layer II, firebrick layer, fire-resistant concrete layer, has good heating, thermal-insulated and heat preservation effect to set up the cushion, based on the existence of cushion, can realize suspending the work piece, avoid work piece and fixed objective platform direct contact, so alright as the temperature buffer medium with the air, make the temperature of work piece surface contact even.

3) In this technical scheme, with the platform body modularization of fixed cargo platform, can confirm module quantity according to the in-service use needs and carry out on-the-spot concatenation, simple structure, bearing capacity are strong, adaptability is strong and whole highly reduce, to bulky work piece, only need increase module quantity can, need not to change whole set of equipment, practiced thrift equipment investment cost, promptly, this technical scheme has increased the practicality of equipment in limited investment cost.

4) This technical scheme has adopted a stoplog formula self sealss furnace gate structure, contains skeleton unit, gyro wheel unit and has the furnace door frame of wedge angle guide rail, has that the structure is light and handy, effectual and the convenient characteristics of installing and removing of heat preservation.

5) Compared with a conventional translational sand sealing device, the lifting furnace bottom sealing mechanism has the advantages that the furnace body running resistance is reduced, the sealing sand is scattered, the structure is simple, the sealing is reliable, the running is stable, and the operation is convenient.

6) The technical scheme adopts a furnace body running device which comprises a driving wheel device, a roller trolley and a guide wheel device. Based on the arrangement of four sets of driving wheel devices, the furnace body operation device can adopt four-wheel synchronous drive with variable frequency speed regulation, in addition, a low roller trolley is used for supporting, four sets of guide wheel devices are clamped on the track for guiding, conventional double-edge wheels are replaced, the wheel edges are prevented from being scratched by the track, and the resistance can be effectively reduced. The device has simple structure, convenient installation and stable operation, and greatly reduces the height of the furnace body.

7) The technical scheme adopts a backpack type electric control device, integrates a temperature measuring unit, a recording unit, a heating control unit, a furnace body operation control unit and the like, and has compact structure and small appearance; the cables of a plurality of heating units and the movable furnace body are arranged in a whole and move along with the furnace body, so that the phenomenon that the furnace body is influenced by dragging too many cables is avoided, and the movable furnace body only needs to drag a relatively small number of control cables and power cables when moving, so that the movable furnace body is more convenient to move, a large number of cables are saved, and the cost is reduced.

Drawings

FIG. 1 is a schematic view of the overall structure of the present embodiment;

FIG. 2 is a side cross-sectional structural view of the stationary stage;

FIG. 3 is a schematic sectional view of the sealing mechanism of the elevating furnace bottom;

FIG. 4 is a schematic structural diagram of a driving wheel device;

FIG. 5 is a schematic cross-sectional front view of a roller cart;

FIG. 6 is a side cross-sectional structural view of the roller car;

FIG. 7 is a schematic structural diagram of a guide wheel device;

FIG. 8 is a schematic structural diagram of an electrical control device;

in the figure:

1. fixing a carrying plane; 1.1, a platform frame; 1.1, a heat-insulating fiber layer II; 1.2, refractory brick layers; 1.3, a refractory concrete layer; 1.4, sealing layer; 1.5, cushion blocks; 1.6, a groove; 1.7, a heat-insulating fiber layer I; 1.8, placing bricks; 1.9, heating a unit I; 2. a movable furnace body; 2.0, a furnace body frame; 2.1, a heating unit II; 2.2, ceramic fiber furnace lining; 3. a stoplog furnace mouth sealing mechanism; 3.0, wedge angle guide rails; 3.1, a roller unit; 3.2, furnace door frames; 3.3, a skeleton unit; 4. a furnace body operation device; 4.0, driving wheel devices; 4.00, a speed reducer; 4.01, gear shaft; 4.02, a gear ring; 4.03, a roller I; 4.04, roller shaft; 4.05, bearing I; 4.06, bearing parts; 4.1, roller trolley; 4.10, roller support; 4.11, a roller body; 4.12, bolt pieces; 4.2, a guide wheel device; 4.20, a guide wheel body; 4.21, a guide support; 4.22, bolt connecting piece; 4.23, a guide wheel shaft; 4.24, guide wheel bearing; 4.3, a bottom beam of the furnace bottom; 5. a lifting furnace bottom sealing mechanism; 5.0, a furnace body sand sealing cutter; 5.1, a platform sand sealing cutter; 5.2, sand sealing the groove; 5.3, a lifting cylinder; 5.4, sealing sand; 6. an electrical control device; 6.0, a backpack type electrical control cabinet; 6.1, a temperature measuring unit; 6.2, a recording unit; 6.3, a heating control unit; 6.4, a furnace body operation control unit; 6.5, a temperature measurement sensing unit; 6. an electrical control device; 6.0, a backpack type electrical control cabinet; 6.1, a temperature measuring unit; 6.2, a recording unit; 6.3, a heating control unit; 6.4, a furnace body operation control unit; 6.5, a temperature measurement sensing unit; 6.6, cables; 6.7, operating box; 6.8, a cable drag chain; 6.9, an electric limiting device; 7. a screw assembly; 8. a workpiece; 9. a guide rail device; 9.0, track; 9.1 and limit stops.

Detailed Description

In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below, the technical solution of the embodiments of the present invention is clearly and completely described, and it should not be understood that the present invention is limited to the following examples, and the present invention shall not be limited to the embodiments, and the modifications and improvements in the field shall be included in the protection scope of the claims of the present invention.

Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of the terms "or" comprising "and the like in this disclosure is intended to mean that the elements or items listed before the term encompass the elements or items listed after the term and their equivalents, without excluding other elements or items. "upper", "lower", "left", "right", "front", "rear", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

Example 1

The embodiment discloses a resistance annealing furnace based on furnace body movement, which is a basic implementation scheme of the technical scheme, and comprises a fixed object carrying platform 1, a movable furnace body 2, a furnace body running device 4, a guide rail device 9, a lifting furnace bottom sealing mechanism 5 and an electric control device 6, wherein the fixed object carrying platform is arranged on the upper surface of the furnace body; the guide rail device 9 is fixedly arranged on the ground, and the furnace body operation device 4 is arranged at the bottom of the movable furnace body 2 and is used for supporting, driving and guiding the movable furnace body 2 on the guide rail device 9; a furnace mouth is arranged on the left side of the movable furnace body 2, and a stoplog type furnace mouth sealing mechanism 3 is arranged at the furnace mouth; the fixed object carrying platform 1 is arranged on the left side of the movable furnace body 2 and is fixedly connected with the ground; the lifting furnace bottom sealing mechanism 5 is arranged along the peripheral edge of the fixed object carrying platform 1 and is fixedly connected with the ground; the electric control device 6 is arranged on the movable furnace body 2, and the fixed object carrying platform 1, the movable furnace body 2, the furnace body running device 4 and the lifting furnace bottom sealing mechanism 5 are respectively electrically connected with the electric control device 6.

In the actual use process, a workpiece 8 is placed on the fixed objective platform 1, the furnace body operation device 4 is started through an electrical control system in the electrical control device 6, the movable furnace body 2 linearly moves along the guide rail device 9 under the action of the furnace body operation device 4 until the workpiece 8 and the fixed objective platform 1 are completely positioned in the movable furnace body 2, and the furnace body operation device 4 stops operating under the control of the electrical control device 6; and closing the stoplog furnace mouth sealing mechanism 3, starting the lifting furnace bottom sealing mechanism 5 through the electric control device 6, lifting the lifting furnace bottom sealing mechanism 5, and sealing the bottom of the movable furnace body 2 by matching with the fixed object carrying platform 1 to ensure that the workpiece 8 is in a closed environment. The electric control device 6 controls the movable furnace body 2 to heat and cool the internal environment of the movable furnace body 2 based on the set process parameters (such as temperature, time and the like).

Compared with the prior art, this technical scheme is through setting up fixed objective platform 1 platform and portable furnace body 2, portable furnace body 2 that the relative weight is lighter is controlled through furnace body running gear 4 removes, need not to develop the high difficulty platform truck (the annealing stove in the prior art is generally that the furnace body is fixed, objective platform removes, in order to bear the work piece 8 of big weight, need be under the prerequisite of the higher difficult platform truck of objective platform bottom installation), the problem that there is the difficulty in super large overweight welding piece annealing thermal treatment has been solved, and through setting up over-and-under type stove bottom sealing mechanism 5, perfect cooperation with fixed objective platform 1 platform and portable furnace body 2, good basis has been laid for realizing the stable control by temperature change of portable furnace body 2 internal environment.

Example 2

The embodiment discloses a resistance annealing furnace based on furnace body movement, which is a preferred embodiment of the technical scheme, namely in the embodiment 1, as shown in figure 2, a fixed object carrying platform 1 comprises a platform body and a heating unit I1.9. The platform body comprises a platform frame 1.1, and the platform frame 1.1 is formed by welding steel plates and section steel. The platform frame 1.1 is internally provided with a heat-insulating fiber layer II 1.1 and a refractory concrete masonry body in sequence from bottom to top, wherein the heat-insulating fiber layer II 1.1 is a ceramic fiber heat-insulating layer, the refractory concrete masonry body is formed by casting a refractory brick layer 1.2 (also called as a light heat-insulating layer) on a lower layer and a refractory concrete layer 1.3 (also called as a heavy refractory concrete layer 1.3) on an upper layer, a heating unit I1.9 is embedded in the refractory concrete layer 1.3, and the top of the refractory concrete layer 1.3 is provided with a cushion block 1.5.

This technical scheme has adopted a fixed objective platform 1 platform structure, has contained heat preservation fibre layer II 1.1, firebrick layer 1.2, fire-resistant concrete layer 1.3, has good heating, thermal-insulated and heat preservation effect, and set up cushion 1.5, based on the existence of cushion 1.5, can realize suspending work piece 8, avoid work piece 8 and fixed objective platform 1 platform direct contact, so alright as the temperature buffering medium with the air, make 8 surface contact's of work piece temperature even.

Example 3

The embodiment discloses a resistance annealing furnace based on furnace body removes, as an optimal implementation scheme of this technical scheme, in embodiment 2 promptly, as shown in fig. 1, the platform body is dividing into left end module, middle module and right-hand member module along 4 length direction of furnace body running gear (from a left side to the right side of fixed objective platform 1 promptly), middle module has a plurality of, and is concrete, every module all includes platform frame 1.1 structure, refractory concrete brickwork and heat preservation fibre layer II 1.1, still be provided with sealing layer 1.4 between the adjacent module, through the taut concatenation of screw assembly 7 between the adjacent module. Furthermore, the left side edge furnace of the left end module is provided with a furnace door bearing platform for supporting the stoplog type furnace mouth sealing mechanism 3, a sand seal groove 5.2 is installed on the furnace door bearing platform, sealing sand 5.4 is placed in the sand seal groove 5.2, and when the stoplog type furnace mouth sealing mechanism 3 is in a closed state, the stoplog type furnace mouth sealing mechanism 3 is matched with the sand seal groove 5.2 filled with the sealing sand 5.4, so that the left side sealing of the movable furnace body 2 is realized.

In this technical scheme, with the platform body modularization of fixed objective platform 1 platform, can confirm module quantity according to the in-service use needs and carry out the on-the-spot concatenation, simple structure, bearing capacity are strong, adaptability is strong and whole height reduces, to bulky work piece 8, only need increase module quantity can, need not to change whole set of equipment, practiced thrift equipment investment cost, promptly, this technical scheme has increased the practicality of equipment in limited investment cost.

Further, for realizing the high cooperation with fixed objective platform 1 platform, portable furnace body 2 divides into left end module, middle module and right-hand member module along 4 length directions of furnace body running gear (namely portable furnace body 2 from left to right), and middle module has a plurality of, through the taut concatenation of screw rod subassembly 7 between the adjacent module. According to the structure of the modularized movable furnace body 2, the beam-stacked furnace mouth sealing mechanism 3 is arranged on the left side of the left end module.

Example 4

The embodiment discloses a resistance annealing furnace based on furnace body movement, which is a preferred embodiment of the technical scheme, namely in the embodiment 3, the top of a refractory concrete layer 1.3 is provided with a groove 1.6 for installing a heating unit I1.9, and a heat preservation fiber layer I1.7 and a laying brick 1.8 are sequentially arranged in the groove 1.6 from bottom to top; heating unit I1.9 is including connecing electric installation I and setting up resistance strip I on putting brick 1.8, resistance strip I through connect electric installation I with electric control device 6 is connected. For a modular fixed object carrying platform 1, resistance bands I are arranged in a grouping mode, and all the resistance bands I on a single module are in a group; the power connection device I comprises a plurality of power connection units, the connection point units correspond to the modules one to one, and all the resistance bands I on the single module are connected into the corresponding power connection units.

Example 5

The embodiment discloses a resistance annealing furnace based on furnace body movement, which is a preferred embodiment of the technical scheme, that is, in the embodiment 3, a movable furnace body 2 adopts a lightweight design and comprises a furnace body frame 2.0 and a heating unit II 2.1, and a ceramic fiber furnace lining 2.2 is arranged on the inner wall of the furnace body frame 2.0. Wherein, the furnace body frame 2.0 is formed by welding light high-strength section steel and a steel plate net, and the furnace body operation device 4 is mainly connected with the furnace body frame 2.0 of the movable furnace body 2. The ceramic fiber furnace lining 2.2 is formed by installing and fixing a laminated ceramic fiber module on a furnace body frame 2.0 through a drawing rod. The heating unit II 2.1 comprises a power connection device II and a resistance band II arranged on the ceramic fiber furnace lining 2.2, and the resistance band II is electrically connected with the electric control device 6 through the power connection device II.

Further, for the modularized movable furnace body 2, resistance bands II are distributed in a grouping mode, and all the resistance bands II on a single module are in one group; the power connection device II comprises a plurality of power connection units, the connection point units correspond to the modules one to one, and all the resistance bands II on a single module are connected into the corresponding power connection units.

Example 6

The embodiment discloses a resistance annealing furnace based on furnace body movement, which is a preferred embodiment of the technical scheme, namely in the embodiment 1, a beam-type furnace mouth sealing mechanism 3 comprises a furnace door frame 3.2, a framework unit 3.3 and a roller unit 3.1, and a wedge-angle guide rail 3.0 is arranged on the furnace door frame 3.2. Specifically, the guide rail 3.0 with the wedge angle is made of rectangular steel pipes through tailor welding and is welded on the furnace door frame 3.2 in a matched mode according to a certain inclination angle. The roller unit 3.1 is arranged on the framework unit 3.3, and the roller unit 3.1 is in rolling connection with the wedge angle guide rail 3.0; and a heat-preserving furnace lining is fixed on one side of the framework unit 3.3 facing the furnace mouth of the movable furnace body 2. Specifically, the framework unit 3.3 is of a frame structure formed by splicing and welding light section steel and a steel plate mesh, the furnace lining structure is made of laminated ceramic fiber modules, and the laminated ceramic fiber modules are fixed on the framework unit 3.3 through back lacing wires. The roller unit 3.1 comprises four roller bodies, the four roller bodies are respectively arranged at the positions of the two sides of the furnace door frame 3.2 close to the upper end and the lower end, the inner sides of the roller bodies are provided with flanges, the flanges are contacted with the guide rails with wedge angles 3.0 to realize lateral positioning, after the furnace door body is clamped into the wedge angles through the four roller bodies, the furnace door is clamped into the furnace mouth through dead weight to realize furnace mouth sealing.

In conclusion, the technical scheme adopts the girder-stacked furnace mouth sealing mechanism 3 which comprises a framework unit 3.3, a roller unit 3.1 and a furnace door frame 3.2 with a wedge-angle guide rail 3.0 and has the characteristics of light structure, good heat preservation effect and convenient assembly and disassembly.

Example 7

The embodiment discloses a resistance annealing furnace based on furnace body removal, as an optimal implementation scheme of this technical scheme, in embodiment 1 promptly, as shown in fig. 3, lift-type stove bottom sealing mechanism 5 is including setting up in the furnace body sand seal sword 5.0 of portable furnace body 2 bottoms, set up in platform sand seal sword 5.1 of fixed objective platform front and back both sides and right side to and the sand seal groove 5.2 of laying all around along fixed objective platform 1, the interval is provided with a plurality of lift cylinders 5.3 bottom the sand seal groove 5.2, the inside packing of sand seal groove 5.2 has sealed sand 5.4. Wherein, the platform sand sealing knife 5.1 and the furnace body sand sealing knife 5.0 are both made of steel plates by welding, the lower end is in a knife-edge shape and is arranged along three sides below the fixed object carrying platform 1 (the movable furnace body 2) in an n-shape; the section of the sand seal groove 5.2 is of a U-shaped structure, the U-shaped section groove is formed by welding steel plates and is arranged in a pi shape corresponding to the platform (furnace body) sand seal knife, and the sand seal groove 5.2 is filled with seal sand 5.4; the lifting cylinder 5.3 consists of a cylinder body, an electromagnetic valve, an air pump (or a compressed air pipeline) and a connecting pipeline.

In the actual use process, after the movable furnace body 2 and the fixed loading platform 1 are combined in place, the lifting furnace bottom sealing mechanism 5 specifically operates as follows: the sand seal groove 5.2 is pushed to be jacked up by the cylinder, the platform sand seal cutter and the furnace body sand seal cutter are ensured to be inserted into the seal sand by a sufficient depth of 5.4 to form seals at the front side, the rear side and the right side of the furnace bottom, the cylinder retracts before a workpiece 8 is discharged from the furnace, the sand seal groove 5.2 is driven to descend to be separated from the contact with the sand seal cutter, and the furnace body can move.

Compared with a conventional translational sand sealing device, the lifting furnace bottom sealing mechanism 5 has the advantages that the furnace body running resistance is reduced, the sealing sand 5.4 is scattered, the structure is simple, the sealing is reliable, the running is stable, and the operation is convenient.

Example 8

In the embodiment, which is a preferred embodiment of the present technical solution, as shown in fig. 1, in the resistance annealing furnace based on furnace body movement, a guide rail device 9 includes two rails 9.0 parallel to each other and limit stoppers 9.1 disposed at two ends of the rails 9.0, and the limit stoppers 9.1 are disposed to prevent the movable furnace body 2 from separating from the rails 9.0. Furthermore, the two ends of the track 9.0 are provided with the electric limiting devices 6.9, the main working elements of the electric limiting devices 6.9 are sensors, when the electric limiting devices 6.9 detect that the movable furnace body 2 moves in place, the electric limiting devices 6.9 transmit signals back to the electric control device 6, and the electric limiting devices 6.9 control the furnace body operation device 4 to stop operating according to the signals.

Specifically, the furnace body running device 4 comprises a furnace bottom beam 4.3, a roller trolley 4.1, a driving wheel device 4.0 and a guide wheel device 4.2, wherein the roller trolley 4.1, the driving wheel device 4.0 and the guide wheel device 4.2 are fixedly arranged at the bottom of the movable furnace body 2 through the furnace bottom beam 4.3.

As shown in fig. 4, the driving wheel device 4.0 includes a speed reducer 4.00, a gear shaft 4.01, a ring gear 4.02, a roller i 4.03, a roller shaft 4.04, and a bearing i 4.05. The bearing I4.05 is embedded in an inner hole of the roller I4.03, the roller shaft 4.04 axially penetrates through the bearing I4.05, two ends of the roller shaft 4.04 are respectively and fixedly connected with the movable furnace body 2, concretely, two ends of the roller shaft 4.04 penetrate through a roller shaft hole of a bottom beam 4.3 at the bottom of the movable furnace body 2, the roller shaft hole is a stepped hole with a large outer part and a small inner part, a large-diameter end of the roller shaft 4.04 is provided with a shaft stopping plate groove, the shaft stopping plate is clamped into the shaft stopping plate groove, and the shaft stopping plate is fixed on an outer wall plate of the bottom beam 4.3 at the bottom of the movable furnace body 2 through bolts to prevent the roller shaft 4.04 from rotating; the speed reducer 4.00 can adopt a three-in-one cycloidal pin gear speed reducer 4.00, the power is provided by a variable frequency motor, the speed reducer 4.00 is fixed at the bottom of the movable furnace body 2 (specifically the bottom on the furnace body frame 2.0) through bolts, the power output shaft of the speed reducer 4.00 is connected with the gear shaft 4.01 through an internal spline, and two ends of the gear shaft 4.01 are respectively connected with the movable furnace body 2 through bearing pieces 4.06; the gear ring 4.02 is meshed with the gear shaft 4.01, is connected with the roller I4.03 through a bolt and a shear pin, and drives the roller I4.03 to rotate through spigot positioning in actual operation, and the roller I4.03 rolls on the track 9.0 to drive the movable furnace body 2 to operate. The aforementioned drive wheel device 4.0 totally four sets, correspond two tracks 9.0, and the symmetry is laid in both sides around portable furnace body 2 (to portable furnace body 2 of modularization, specifically, install one respectively on the stove bottom floorbar 4.3 left end of both sides around the left end module, install one respectively on the stove bottom floorbar 4.3 right-hand member of both sides around the right-hand member module).

As shown in fig. 5, the roller trolley 4.1 is of a chain roller structure and comprises a roller support 4.10, a roller body is arranged in the roller support 4.10, and the roller support 4.10 is arranged at the bottom of the movable furnace body 2 through a bolt piece 4.12. Specifically, for the modularized movable furnace body 2, roller trolleys 4.1 are arranged at the right end of a bottom beam 4.3 of a left end module, two ends of a middle module and the left end of a right end module, and roller bodies 4.11 are in contact with and roll on the upper surface of a rail 9.0 to move and support the movable furnace body 2.

As shown in fig. 7, the guide wheel device 4.2 includes a guide support 4.21 and two guide wheel bodies 4.20 symmetrically arranged at both sides of the corresponding track 9.0; the guide support 4.21 is fixedly connected with the movable furnace body 2 through a bolt connecting piece 4.22, two guide wheel shafts 4.23 which are in one-to-one correspondence with the guide wheel bodies 4.20 are arranged on the guide support 4.21, and the guide wheel bodies 4.20 are coaxially and rotatably connected with the guide wheel shafts 4.23 through guide wheel bearings 4.24. Four sets of guide wheel devices 4.2 are respectively arranged at the foremost end and the rearmost end of the bottom beams 4.3 at the front side and the rear side of the movable furnace body 2.

The technical scheme adopts a furnace body running device 4, and the furnace body running device 4 comprises a driving wheel device 4.0, a roller trolley 4.1 and a guide wheel device 4.2. Based on the laying of four sets of drive wheel device 4.0 devices, the furnace body operation device 4 can adopt the four-wheel synchronous drive of variable frequency speed governing, in addition, has low roller dolly 4.1 to do the support, has four groups of leading wheel devices 4.2 centre gripping to lead on track 9.0, replaces conventional double-edged wheel, avoids rim and track 9.0 to scratch, can effectively reduce the resistance. The device has simple structure, convenient installation and stable operation, and greatly reduces the height of the furnace body.

Example 9

The embodiment discloses a resistance annealing furnace based on furnace body movement, which is a preferred embodiment of the technical scheme, namely in the embodiment 1, an electric control device 6 comprises a backpack type electric control cabinet 6.0, a cable drag chain 6.8, a temperature measurement sensing unit 6.5 and an operation box 6.7; an electrical control system is arranged in the backpack type electrical control cabinet 6.0, and the operation box 6.7 is electrically connected with the electrical control system; the electric control system comprises a temperature measuring unit 6.1, a recording unit 6.2, a heating control unit 6.3 and a furnace body operation control unit 6.4, and the temperature measuring sensing unit 6.5 is electrically connected with the temperature measuring unit 6.1; one end of the cable drag chain 6.8 is fixedly connected with the ground, the other end is fixedly connected with the movable furnace body 2, in the process of equipment installation, a cable 6.6 ditch is formed on the ground beside the furnace body operation device 4, the cable drag chain 6.8 is arranged in the cable 6.6 ditch, and the cable drag chain 6.8 is connected with the movable furnace body 2 and moves along with the movable furnace body 2. Be connected with a plurality of cables 6.6 on the knapsack formula electrical control cabinet 6.0, fixed objective platform 1 platform, portable furnace body 2, furnace body running gear 4 and over-and-under type stove bottom sealing mechanism 5 pass through cable 6.6 electric connection electrical control system, and based on this, cable 6.6 has included input cable 6.6 and output cable 6.6, and input cable 6.6 contains power cable 6.6 and control cable 6.6 output cable 6.6. All cables 6.6 can be fixed in the cable drag chain 6.8, and the cables 6.6 are protected by the cable drag chain 6.8; it is also possible to fix a part of the cable 6.6 in the cable drag chain 6.8, such as: the output cable 6.6 is fixed on the outer side of the movable furnace body 2, and the input cable 6.6 is fixed in the cable drag chain 6.8.

The temperature measuring unit 6.1 and the recording unit 6.2 are multipoint zone temperature measuring records (based on the modularization of the movable furnace body 2, based on this, the temperature measuring sensing unit 6.5 is based on the layout position to divide the zone based on the modularization of the movable furnace body 2). The heating control unit 6.3 takes a silicon controlled rectifier as a core component, is controlled by a digital temperature controller in the temperature measuring unit 6.1, and is particularly controlled independently in a subarea mode. The furnace body operation control unit 6.4 comprises a frequency converter, a relay, a button, an indicator light and the like. Each system is coordinated and controlled through a PLC module, the furnace body operation control system is provided with an operation box 6.7, and the operation box 6.7 is connected to the electric control device 6 through a cable 6.6.

The technical scheme adopts a backpack type electric control device 6, integrates a temperature measuring unit 6.1, a recording unit 6.2, a heating control unit 6.3, a furnace body operation control unit 6.4 and the like, and has compact structure and small appearance; install in an organic whole with numerous heating unit's of quantity cable 6.6 and portable furnace body 2, remove along with the furnace body, avoided dragging too many cable 6.6 and influence the furnace body and remove, only need drag a lot of control cable 6.6 and power cable 6.6 less relatively when portable furnace body 2 removes for portable furnace body 2 removes more conveniently, has saved a large amount of cables 6.6 simultaneously, reduce cost.

Claims (14)

1. The utility model provides a resistance annealing stove based on furnace body removes which characterized in that: comprises a fixed object carrying platform (1), a movable furnace body (2), a furnace body running device (4), a guide rail device (9), a lifting furnace bottom sealing mechanism (5) and an electric control device (6);

the guide rail device (9) is fixedly arranged on the ground, and the furnace body operation device (4) is arranged at the bottom of the movable furnace body (2) and is used for supporting, driving and guiding the movable furnace body (2) on the guide rail device (9); a furnace mouth is formed in the left side of the movable furnace body (2), and a stoplog type furnace mouth sealing mechanism (3) is installed at the furnace mouth;

the fixed loading platform (1) is arranged on the left side of the movable furnace body (2) and is fixedly connected with the ground; the lifting furnace bottom sealing mechanism (5) is arranged along the peripheral edge of the fixed object carrying platform (1) and is fixedly connected with the ground;

the electric control device (6) is arranged on the movable furnace body (2), and the fixed loading platform (1), the movable furnace body (2), the furnace body running device (4) and the lifting furnace bottom sealing mechanism (5) are respectively and electrically connected with the electric control device (6).

2. The resistance annealing furnace based on furnace body movement according to claim 1, characterized in that: the fixed object carrying platform (1) comprises a platform body and a heating unit I (1.9); the platform body comprises a platform frame (1.1), and a heat-insulating fiber layer II (1.1), a refractory brick layer (1.2) and a refractory concrete layer (1.3) are sequentially arranged in the platform frame (1.1) from bottom to top; the heating unit I (1.9) is embedded in the fireproof concrete layer (1.3), and a cushion block (1.5) is arranged at the top of the fireproof concrete layer (1.3).

3. The resistance annealing furnace based on the movement of the furnace body according to claim 2, wherein: the platform body is divided into a left end module, a middle module and a right end module along the length direction of the guide rail device (9), the middle modules are provided with a plurality of modules, and adjacent modules are in tensioning splicing through the screw rod assemblies (7).

4. The resistance annealing furnace based on the movement of the furnace body according to claim 2, wherein: the top of the fireproof concrete layer (1.3) is provided with a groove (1.6) for installing a heating unit I (1.9), and a heat-insulating fiber layer I (1.7) and a laying brick (1.8) are sequentially arranged in the groove (1.6) from bottom to top; heating unit I (1.9) are including connecing electric installation I and setting up resistance strip I on putting brick (1.8), resistance strip I through connect electric installation I with electrical control device (6) electric connection.

5. The resistance annealing furnace based on furnace body movement according to claim 1, characterized in that: the movable furnace body (2) comprises a furnace body frame (2.0) and a heating unit II (2.1), and a ceramic fiber furnace lining (2.2) is arranged on the inner wall of the furnace body frame (2.0); the heating unit II (2.1) comprises a power connection device II and a resistance band II arranged on the ceramic fiber furnace lining (2.2), and the resistance band II is electrically connected with the electric control device (6) through the power connection device II.

6. The resistance annealing furnace based on furnace body movement according to claim 1, characterized in that: the movable furnace body (2) is divided into a left end module, a middle module and a right end module along the length direction of the guide rail device (9), the middle module is provided with a plurality of modules, and adjacent modules are connected in a tensioning mode through screw assemblies (7).

7. The resistance annealing furnace based on furnace body movement according to claim 1, characterized in that: the stoplog type furnace mouth sealing mechanism (3) comprises a furnace door frame (3.2), a framework unit (3.3) and a roller unit (3.1); a wedge angle guide rail (3.0) is arranged on the furnace door frame (3.2); the roller unit (3.1) is arranged on the framework unit (3.3), and the roller unit (3.1) is in rolling connection with the wedge angle guide rail (3.0); one side of the framework unit (3.3) facing the furnace mouth of the movable furnace body (2) is fixed with a heat-preserving furnace lining.

8. The resistance annealing furnace based on furnace body movement according to claim 1, characterized in that: the lifting furnace bottom sealing mechanism (5) comprises a furnace body sand sealing knife (5.0) arranged at the bottom of the movable furnace body (2), platform sand sealing knives (5.1) arranged on the front side, the rear side and the right side of the fixed object carrying platform (1), and sand sealing grooves (5.2) arranged around the fixed object carrying platform (1), wherein a plurality of lifting cylinders (5.3) are arranged at the bottom of the sand sealing grooves (5.2) at intervals, and sealing sand (5.4) is filled in the sand sealing grooves (5.2).

9. The furnace body movement-based resistance annealing furnace according to claim 1, wherein: the guide rail device (9) comprises two parallel rails (9.0) and limit stops (9.1) arranged at two ends of the rails (9.0).

10. The resistance annealing furnace based on furnace body movement according to claim 1, characterized in that: the furnace body operation device (4) comprises a furnace bottom beam (4.3), a roller trolley (4.1), a driving wheel device (4.0) and a guide wheel device (4.2), wherein the roller trolley (4.1), the driving wheel device (4.0) and the guide wheel device (4.2) are fixedly arranged at the bottom of the movable furnace body (2) through the furnace bottom beam (4.3).

11. The furnace body movement-based resistance annealing furnace according to claim 10, wherein: the roller trolley (4.1) is of a chain roller structure and comprises a roller support (4.10), a roller main body is installed in the roller support (4.10), and the roller support (4.10) is installed at the bottom of a bottom beam (4.3) of the furnace through a bolt piece (4.12).

12. The furnace body movement-based resistance annealing furnace according to claim 10, wherein: the driving wheel device (4.0) comprises a speed reducer (4.00), a gear shaft (4.01), a gear ring (4.02), a roller I (4.03), a roller shaft (4.04) and a bearing I (4.05); the bearing I (4.05) is embedded in an inner hole of the roller I (4.03), the roller shaft (4.04) axially penetrates through the bearing I (4.05), and two ends of the roller shaft (4.04) are fixedly connected with the bottom beams (4.3) of the furnace respectively; the speed reducer (4.00) is fixed on the outer side of the hearth bottom beam (4.3) through a bolt, a power output shaft of the speed reducer (4.00) is connected with a gear shaft (4.01) through an internal spline, and two ends of the gear shaft (4.01) are respectively connected with the hearth bottom beam (4.3) through a bearing piece (4.06); the gear ring (4.02) is meshed with the gear shaft (4.01) and is connected with the roller I (4.03) through a bolt and a shear pin.

13. The furnace body movement-based resistance annealing furnace according to claim 10, wherein: the guide wheel device (4.2) comprises a guide support (4.21) and two guide wheel bodies (4.20) which are symmetrically arranged on two sides of the corresponding track (9.0); the guide support (4.21) is fixedly connected with the bottom beam (4.3) of the furnace through a bolt connecting piece (4.22), two guide wheel shafts (4.23) which are in one-to-one correspondence with the guide wheel bodies (4.20) are arranged on the guide support (4.21), and the guide wheel bodies (4.20) are coaxially and rotatably connected with the guide wheel shafts (4.23) through guide wheel bearings (4.24).

14. The resistance annealing furnace based on furnace body movement according to claim 1, characterized in that: the electric control device (6) comprises a backpack type electric control cabinet (6.0), a cable drag chain (6.8), a temperature measurement sensing unit (6.5) and an operation box (6.7); an electrical control system is arranged in the backpack type electrical control cabinet (6.0), and the operation box (6.7) is electrically connected with the electrical control system; the electric control system comprises a temperature measuring unit (6.1), a recording unit (6.2), a heating control unit (6.3) and a furnace body operation control unit (6.4), and the temperature measuring sensing unit (6.5) is electrically connected with the temperature measuring unit (6.1); one end of a cable drag chain (6.8) is fixedly connected with the ground, and the other end is fixedly connected with the movable furnace body (2); the backpack type electric control cabinet (6.0) is connected with a plurality of cables (6.6), and all or part of the cables (6.6) are fixed in a cable drag chain (6.8).

Images