162results about "Bell type furnaces" patented technology

The invention relates to the technical field of cover annealing production of hot-rolled stainless steel coils, and discloses a strapping device and method for controlling loosening of inner rings of cover annealing steel coils, the strapping device comprises two bearing tables, a semi-automatic strapping machine and a strapping conveying mechanism, the two bearing tables are oppositely arranged, and supporting rotating rollers are rotationally arranged on the top surfaces of the bearing tables; the semi-automatic bundling machine is located between the two bearing tables, the bundling direction of the semi-automatic bundling machine faces the axial direction of the steel coil, the bundling belt conveying mechanism comprises a conveying line and a clamping mechanism, one end of the conveying line extends to the line feeding end of the semi-automatic bundling machine, and the other end of the conveying line penetrates through the inner ring of the steel coil and extends to the bundling end of the semi-automatic bundling machine. The clamping mechanism is installed on the conveying line in a sliding mode and used for clamping a binding belt at the wire feeding end of the semi-automatic bundling machine and driving the binding belt to bypass the inner ring of the steel coil to be conveyed to the bundling end of the semi-automatic bundling machine, a plurality of binding belts are formed on the steel coil to complete effective fixing of the inner ring belt head of the steel coil, and the inner ring belt head is prevented and controlled to loosen and collapse.

The invention relates to the technical field of flue gas recirculation, in particular to a bell-type annealing furnace oxygen-rich combustion flue gas recycling system and method, and the system comprises a circulating flue gas heating cylinder, an oxygen-rich combustor and a system control valve group; oxygen of the oxygen-rich combustor is mixed with fuel, after the fuel enters the circulating flue gas heating cylinder, the oxygen is mixed with part of the fuel to form root flame, and the unburned fuel and oxygen are completely combusted in the circulating flue gas heating cylinder to form flameless flame; the number of the circulating flue gas heating cylinders is one or more, each circulating flue gas heating cylinder is provided with an oxygen-rich combustor, heat generated by combustion is used for heating flue gas generated by combustion of oxygen and fuel in the circulating flue gas heating cylinders, the heated flue gas is circulated to the bell-type furnace through the high-temperature and high-pressure circulating flue gas fan, and redundant flue gas is recycled in a centralized mode. According to the system, heat is fully utilized through flue gas circulation, heating uniformity and quality are improved, combustion flue gas is high-purity carbon dioxide, and zero emission of the flue gas can be achieved through trapping and recycling.

The invention relates to a bell-type furnace (1) comprising a mounting (3) and a process hood (2) which can be arranged on the mounting (3) in order to form a process chamber (6) for at least one object to be processed and which is arranged so as to directly adjoin the process chamber (6). The bell-type furnace also comprises a heating device (13) for controlling the temperature of the at least one object. The invention is characterized in that the process hood (2) has an inner sleeve (9), the outer surface of which is at least partly surrounded by a thermal insulation (10), or the thermal insulation (10) is arranged so as to directly adjoin the process chamber (6).

An industrial furnace system, particularly for producing ceramic materials and / or carbides, includes at least one furnace with a chamber having a loading opening for loading the chamber, a heating device and a closure device for the opening, a control device and a transfer device for transferring a crucible that can be placed in the chamber to and / or from the furnace. To remove the crucible from the chamber, the control device is configured to bring the closure device—by actuating the transfer device and / or depending on the position of the transfer device and / or an end effector thereof—into the release position and / or to allow for a crucible to be removed through the opening when the closure device is in the release position by actuating the transfer device and / or preferably depending on the transfer device and / or end effector position by actuating a removal device separate from the transfer device.

The invention discloses a rubber discharging and sintering integrated bell-type furnace and a using method thereof, and relates to the technical field of bell-type furnaces. The device is characterized in that a thermal field control mechanism is arranged on the furnace body, and the thermal field control mechanism comprises a first heating mechanism, a second heating mechanism, a third heating mechanism and a fourth heating mechanism, the second heating mechanism is arranged on the furnace body and is used for preheating and discharging rubber at low temperature; and a temperature detection mechanism. By arranging the thermal field control mechanism, the first heating mechanism and the second heating mechanism are integrated in the same bell-type furnace, and seamless connection of low-temperature glue discharging and high-temperature sintering is achieved; according to the mode, an intermediate material transfer link is omitted, the problem of material damage caused by transfer is effectively avoided, meanwhile, temperature loss in the transfer process is reduced, and energy consumption is remarkably reduced; the integrated design not only improves the production efficiency, but also ensures the continuity and stability of the technological process.

The utility model discloses a kiln cover which comprises a cover body, a box body and a connecting pipe assembly, an opening is formed in the bottom of the cover body, the cover body is communicated with the box body, an air inlet pipe is arranged at the bottom of the box body, and combustible materials are filled in the box body and used for consuming oxygen in air entering the cover body. And the oxygen-depleted air enters the cover body to achieve the oxygen isolation effect. The box body is connected outside the cover body, and the air inlet pipe is arranged at the bottom of the box body, so that air enters the box body through the air inlet pipe at the bottom of the box body, is deoxidized by smoldering combustible materials and then enters the cover body, the deoxidizing effect is achieved, antique materials in the cover body can be rapidly cooled, the whole structure is simple, use is convenient, and practicability is high.

The utility model belongs to the technical field of bell-type furnaces, and relates to a quick-cooling type environment-friendly bell-type furnace which comprises a furnace body and a furnace cover, an installation frame is fixedly welded to the outer side end of the furnace cover, an exhaust fan is fixedly installed on the installation frame, a heat exchange water tank is fixedly installed at the top of the furnace body, and two flow dividing plates are fixedly installed at the two ends in the heat exchange water tank respectively. A circulating water tank is fixedly mounted at the top of the heat exchange water tank, a micro circulating pump is fixedly mounted at one end of the circulating water tank, a circulating pipe is communicated between the micro circulating pump and the heat exchange water tank, and the same circulating pipe is communicated between the other end of the circulating water tank and the heat exchange water tank; a heat-conducting plate is embedded in the top of the circulating water tank, and a semiconductor radiator is fixedly mounted at the top of the heat-conducting plate; the two connecting covers are respectively mounted at two ends of the filter cartridge in a threaded manner; according to the bell-type furnace, the purpose of quick cooling is achieved by adopting an air draft cooling type design, and meanwhile, waste gas can be filtered and purified.

The invention relates to the technical field of annealing furnaces, and discloses a bell-type annealing furnace system adopting a high-purity hydrogen protective atmosphere and a process thereof.The bell-type annealing furnace system adopting the high-purity hydrogen protective atmosphere comprises a furnace platform, an inner cover is arranged at the top of the furnace platform, and an outer cover is arranged at the position, located on the outer side of the inner cover, of the top of the furnace platform; a plurality of placing ring plates are uniformly arranged at the top of the furnace platform and positioned on the inner side of the inner cover in an overlapping manner; the device further comprises an air injection unit arranged on the furnace platform; and the air injection unit comprises a push-pull component arranged on the furnace platform. According to the bell-type annealing furnace system adopting the high-purity hydrogen protective atmosphere, a vertical cylinder of an air injection assembly drives a material storage box to rotate circumferentially, and the material storage box is driven to move in the radial direction in cooperation with a first-stage push-pull assembly and a second-stage push-pull assembly; meanwhile, the rotating assembly and the pushing assembly drive the nozzle to swing up and down, and a traditional flow field with the strong lower portion and the weak upper portion is thoroughly broken. Local high temperature or insufficient temperature is avoided, it is guaranteed that mechanical properties of all areas of the workpiece are consistent, and the product percent of pass is remarkably increased.

The utility model discloses a bell kiln for sintering nickel-zinc ferrite cores, comprising: a base, the upper surface of the base is slidably connected with a slide plate, the upper surface of the slide plate is fixedly connected with a hydraulic rod, the end of the hydraulic rod away from the slide plate is fixedly connected with a lifting plate, the upper surface of the lifting plate is fixedly connected with a base, the upper surface of the base is fixedly connected with a heating furnace, the upper surface of the lifting plate is fixedly connected with a sealing ring, the upper surface of the base is provided with a slide rail, and a temperature control device, the temperature control device comprises an air compressor, an air inlet pipe, an air exhaust pipe, a control valve, a filter and a resistance heating plate, the temperature of the resistance heating plate and the temperature and size of the air introduced into the kiln can be adjusted by setting the temperature control device, the temperature in the kiln can be quickly adjusted, and the pressure in the kiln can be released when the pressure in the kiln is too high, and the kiln and the product can be quickly cooled after the product sintering is completed to improve the production efficiency.

The present invention relates to a medium-Cr ultrapure ferritic stainless steel thick plate and a production method thereof. The chemical composition of the steel plate is as follows: C ≤ 0.030%, Si ≤ 1.00%, Mn ≤ 1.00%, P ≤ 0.040%, S ≤ 0.030%, Cr: 16.0% to 20.0%, N ≤ 0.030%, Al ≤ 0.15%; and [8×(C+N)] ≤ (Ti+Nb) ≤ 0.80%, with the remainder being Fe and impurities. The black steel coil is first heated and insulated in a bell-type annealing furnace and then subjected to online continuous high-temperature annealing in a hot rolling annealing line. This solves the problem of brittle fracture of the hot-rolled black steel strip due to its high ductile-brittle transition temperature, as well as the problem of stamping cracking during subsequent stamping due to insufficient annealing, while ensuring the continuity and stability of the production process.

The utility model discloses a bell jar type electric heating furnace bearing device which comprises a first bearing seat and a second bearing seat, the second bearing seat is arranged horizontally with the ground, the second bearing seat is not adjacent to the first bearing seat in position, and the height of the second bearing seat is larger than that of the first bearing seat. A pin rod is rotationally arranged on the second bearing seat, a plurality of first supporting plates are arranged on the pin rod, and a bearing table is arranged at the upper ends of the first supporting plates; through cooperative use of a first bearing seat, a second bearing seat, a pin rod, a first supporting plate, a bearing table, a hydraulic cylinder, a second supporting plate and a fixed limiting plate, due to the fact that the second bearing seat is horizontally arranged relative to the ground, the first bearing seat and the hydraulic cylinder are arranged in a pit seat prepared in advance, the hydraulic cylinder is started, and through the hinge connection mode of all the structures, the bearing table is fixed to the ground; the angle of the heating furnace is adjusted, so that workers can observe conditions in the furnace mouth conveniently.

The utility model provides an efficient heat preservation device for a high-temperature bell-type furnace, which relates to the technical field of high-temperature bell-type furnaces, comprises a furnace body and a heat preservation mechanism arranged at the bottom of the furnace body, and is characterized in that the heat preservation mechanism comprises a bottom plate, a fixing mechanism is arranged at the bottom of the bottom plate, and a heat preservation plate is arranged on the inner wall of the bottom plate; a heat insulation plate is arranged on the top of the heat preservation plate. According to the heat preservation mechanism, a plurality of partition plates are arranged, sealing plates are fixedly connected, a cavity is formed in the using process, heat transfer can be effectively prevented, the heat preservation effect is improved, the stability between the partition plates and stainless steel plates can be ensured through the arrangement and fixed connection of the sealing plates and the like, and the situations of loosening, falling and the like are avoided; meanwhile, the high-aluminum cement board, the stainless steel board and other materials have good high-temperature resistance and can be used in a high-temperature environment after being fixedly connected, and the long-term and stable heat preservation effect is guaranteed.

The invention provides a bell jar lifting part sleeve lifting structure for a fluorination furnace, which comprises a device main body, the device main body comprises a positioning block, the upper side and the lower side of the positioning block are respectively provided with a lifting block, the lifting block comprises a first connecting block, the first connecting block is connected with a second connecting block through a pin shaft, and the second connecting block is connected with a lifting arm through a hexagon socket cap screw. A fixing block for an adjusting bolt is arranged behind the second connecting block and connected with the second connecting block through the adjusting bolt, the position of the second connecting block is adjusted, and the connecting precision is guaranteed. The lifting arm is driven by a lifter, the lifter comprises a lifting rod, the lifting arm moves along the lifting rod, a nut seat is arranged at the lower end part of the lifting arm, and the nut seat is connected with the lifting rod through a nut. No complete rigid connection is used beside the connecting part of the lifting mechanism and the bell jar, assembling is more convenient, the hinge pin is used for connection, and the impact force generated when moving begins can be reduced during bearing ascending or descending.

The invention relates to the technical field of silicon steel high-temperature bell-type furnaces, in particular to a silicon steel high-temperature bell-type furnace with a cover body safety interlocking mechanism, which comprises a silicon steel high-temperature bell-type furnace cover body and a furnace platform, a butt joint mechanism is fixedly mounted on the outer surface of the lower end of the silicon steel high-temperature bell-type furnace cover body, and the butt joint mechanism comprises a connecting sleeve seat and a butt joint block; and a combined locking mechanism is arranged on the outer side of the coil base. Through cooperation of the butt joint mechanism and the combined locking mechanism, triple interlocking of the cover body and the coil base of the silicon steel high-temperature cover-type furnace is achieved, namely the synchronous action of axial clamping, radial extrusion and insertion locking is achieved, the risk of axial and radial displacement is eliminated, manual intervention is not needed, the operation safety in the high-temperature environment is remarkably improved, loosening between the cover body and the coil base is avoided, and the service life of the cover body is prolonged. A good sealing effect is guaranteed, heat loss is effectively reduced, reliable connection of the furnace body and the furnace platform in a high-temperature environment is guaranteed, and meanwhile the efficient unlocking and negative pressure releasing functions are achieved.

The invention discloses an ultrahigh-strength steel hot coil full-hydrogen bell-type annealing furnace, and relates to the technical field of annealing furnaces, the ultrahigh-strength steel hot coil full-hydrogen bell-type annealing furnace comprises a base, a furnace platform is arranged above the base, an equipment shell is arranged above the furnace platform, a high-speed burner heating assembly is arranged on one side of the equipment shell, an inner cover is arranged in the equipment shell, and an outer cover is arranged in the inner cover. A storage rack is arranged in the inner cover, a first purification box is arranged on one side of the furnace platform, a smoke outlet pipe is arranged between the first purification box and the equipment shell, a second purification box is arranged above the first purification box, and a filter screen, activated carbon and adsorption cotton are arranged in the second purification box. According to the all-hydrogen bell-type annealing furnace, the storage racks are arranged between the stacked steel hot coils, so that the steel hot coils can be prevented from being in direct contact, heat can flow quickly, the steel hot coils can be heated uniformly, adhesion of the steel hot coils is avoided, the annealing treatment quality of the steel hot coils is ensured, and the using effect of the bell-type annealing furnace is improved.

The invention relates to a device (1) for controlling the temperature of an article (2), comprising: a chamber (5) for accommodating the article (2), which chamber (5) is surrounded by a chamber circumference (7), a bottom element (4) and a cover element (8); a heating element; a running wheel (9) for circulating a first gas, said running wheel (9) being arranged in the chamber (5); and a running wheel drive (12), by means of which the running wheel (9) is rotated. The heating element is formed by the rotor (9) having the rotor drive (12).

The utility model discloses a furnace body of a bell jar type electric heating furnace, which comprises a furnace body main body, the top end of the furnace body main body is provided with a liquid inlet pipe and a liquid outlet pipe, the liquid inlet pipe and the liquid outlet pipe extend into the furnace body main body, and the liquid inlet pipe and the liquid outlet pipe are positioned on two opposite sides; a first straight groove is formed in the lower end of the liquid inlet pipe, a first arch-shaped groove is formed in the lower end of the first straight groove, a second straight groove is formed in the upper end of the first arch-shaped groove, and a second arch-shaped groove is formed in the upper end of the second straight groove; an arranged booster pump can increase the oil pressure in a cooling oil tank, cooling oil enters a first straight groove, a first arch-shaped groove, a second straight groove and a second arch-shaped groove through an arranged cooling oil inlet pipe and a liquid inlet pipe and is finally discharged through a liquid outlet pipe, heat in the furnace body is discharged and taken away through the liquid outlet pipe, and therefore the active cooling function of the furnace body can be achieved; therefore, the oxidation speed of the shell can be slowed down, and potential safety hazards are reduced.

The utility model relates to a bell-type furnace prepared from a manganese zinc ferrite material for a new energy vehicle. The device comprises an incinerator and a charging basket mechanism, the charging basket mechanism comprises a charging basket main body, a charging basket supporting plate and charging basket rollers, the charging basket main body is arranged at the top of the charging basket supporting plate, and the charging basket rollers are arranged at the bottom of the charging basket supporting plate. The material barrel mechanism is matched with the incinerator, the moving mechanism is matched with the lifting mechanism, the moving mechanism comprises a moving support, a moving sliding groove, a moving motor, a moving belt wheel, a moving belt and a moving stop block, the moving support penetrates through a main body of the incinerator, the moving sliding groove is formed in the moving support, the material barrel rolling wheels are located in the moving sliding groove, and the moving motor is arranged on the moving belt wheel. The two ends of the movable support are each provided with a movable belt wheel, the two movable belt wheels are driven through a movable belt, the movable check blocks are arranged on the movable belt wheels, and a motor shaft of the movable motor is connected with one movable belt wheel.

The utility model relates to a lifting type bell jar furnace convenient to take and place, and belongs to the technical field of high-temperature sintering equipment. The problems that an existing bell-type furnace is inconvenient in material taking and placing, poor in stability, poor in heating and heat preservation performance and the like are solved. The device comprises a bell jar unit and a material lifting unit, the bell jar unit is arranged on the upper portion and comprises a fire-resistant cavity, heating assemblies are evenly distributed in the fire-resistant cavity, and the fire-resistant cavity is in a bell shape to optimize heat utilization; the material lifting unit is provided with a frame, a material table, a lifting device and an outwards-extending carrying track, and material loading, unloading and accurate transferring are facilitated. The two unit frames are stably connected, and a plurality of groups of optimized structures are arranged, for example, an electrode clip fixes a heating assembly, a smoke exhaust device assists in cleaning and controls air pressure, a temperature measuring device accurately controls temperature, and a limiting assembly guarantees safety. A push-pull rod and a positioning plate are also arranged, so that the material taking, placing and operation convenience is improved, the equipment stability and reliability are enhanced, the mounting difficulty is reduced, high efficiency and energy conservation are realized, and the process development is guaranteed.

This invention provides a technology to suppress shape defects that may occur in batch-annealed cold-rolled steel sheets during subsequent processes after batch annealing. [Solution] The batch annealing method for steel plate coils according to the present disclosure includes a step A of raising the ambient temperature inside the inner cover of a batch-type annealing furnace from room temperature to a target temperature of -300°C, a step B of raising it thereafter to a target temperature of -100°C, a step C of raising it thereafter to a target temperature, and a step D of maintaining it at the target temperature, wherein the target temperature is 450°C or more and 750°C or less, and in steps B and C, the difference ΔQ of the decrease in ambient temperature rise Q(t) is -50°C / h or more and less than 0°C / h.

The invention relates to a hood-type annealing furnace (1) for annealing metal strip, metal sheet, or wire in an annealing chamber (5) under a protective gas atmosphere, comprising at least one storage space for a charge in the form of at least one coil (3) or a coil stack, at least one protective hood (4) that delimits the annealing chamber (5), at least one heating hood (7) that has at least one electrical heating element (9A, 9B, 9C) and that encloses the protective hood (4) to form a heating chamber (8), means for supplying the protective gas into the annealing chamber (5), and means for post-combustion of the protective gas within the heating chamber (8). The invention further relates to a method for annealing metal strip, metal sheet, or wire in an annealing chamber (5) under a protective gas atmosphere using at least one electrically heated hood-type annealing furnace (1).

This invention relates to a method for preventing edge overflow and bending of steel coils in a bell-type annealing furnace. When stacking steel coils, a double-ring convection system consisting of an inner and outer convection ring is placed between the upper and lower coils. Both the inner and outer convection rings consist of a ring body and multiple fan-shaped blocks evenly distributed circumferentially on the ring body. The upper and lower surfaces of the fan-shaped blocks protrude beyond the ring body and are planar. The inner and outer convection rings are coaxially arranged. The dimensions of the inner and outer convection rings are determined according to the specific location and width of the overflow edge on the steel coil, ensuring that both the inner and outer convection rings contact the flat end face of the steel coil in the area without an overflow edge. By using the inner and outer convection rings in combination to replace the existing integral convection plate structure, steel coils can be stacked and arranged in a bell-type furnace without completely avoiding the overflow edge, thereby eliminating the bending phenomenon at the overflow edge.

This utility model discloses a bell-shaped furnace for heat pipe sintering, including a sealed furnace platform. A circulating fan is fixedly installed at the center of the top of the sealed furnace platform, and an inner cover is fixedly installed at the top of the circulating fan. A heating cover is provided on the outer side of the inner cover, and a cooling pipe is fixedly connected to the top of the heating cover. A heat dissipation component is fixedly connected to the top of the cooling pipe. Combustion platforms are fixedly installed on both sides of the inner wall of the heating cover, and nozzles are fixedly installed on the opposite side of the two combustion platforms. The heat dissipation component includes a heat dissipation housing and a fan. This bell-shaped furnace for heat pipe sintering uses a heat dissipation component fan to draw in ambient gas through the air inlet. The drawn gas comes into contact with a cooling rod. When the cooling rod is energized, it starts to cool the gas. The low-temperature gas is filtered through a screen to dissipate impurities and then delivered to the heating cover, completing the cooling of the heat pipe. This reduces the time required for heat pipe sintering and improves the processing efficiency of the heat pipe.

A system for heat-treating a coil of metal can include a furnace, an unwinding system, and a quenching system. The furnace may receive the coil of metal and elevate a temperature of the metal to be within a pre-heated temperature range, such as a homogenizing temperature range or an annealing temperature range. The unwinding system may unwind at least a portion of the coil in a heated state in which the metal is within the pre-heated temperature range or before the metal has cooled past a threshold amount below the pre-heated temperature range. The quenching system may receive the unwound portion of the coil from the unwinding device and reduce a temperature of the unwound portion to a within a quenched temperature range within a predetermined amount of time.

The invention relates to a clamping state recognition device of a three-jaw clamp, the clamping state of the three-jaw clamp for clamping a convection plate can be remotely recognized in a cab, the three-jaw clamp comprises a connecting rod and a clamping seat used for being in contact with the convection plate, the clamping seat is arranged on the connecting rod, and the connecting rod is connected with the clamping seat. The clamping state recognition device comprises a monitoring mechanism, an indicating mechanism and a control mechanism. A mounting hole is formed in the contact position of the clamping seat and the convection plate, the axis of the mounting hole is perpendicular to the axis of the second connecting rod, one end of the mounting hole is close to the convection plate, and the other end of the mounting hole is far away from the convection plate; a monitoring mechanism is arranged in the mounting hole and comprises an inductive load sensor, a sliding rod and a spring, the inductive load sensor is fixedly arranged in the mounting hole and is far away from the convection plate, the sliding rod is located in the mounting hole, one end of the sliding rod and the inductive load sensor are arranged at an interval, and the other end of the sliding rod extends out of the mounting hole; the sliding rod is sleeved with the spring, one end of the spring is fixedly connected with the sliding rod, and the other end of the spring is fixedly connected with the inner wall of the mounting hole. The control mechanism is electrically connected with the inductance type load sensor, the indicating mechanism is arranged in a cab and electrically connected with the control mechanism, and the indicating mechanism comprises a first indicating lamp used for displaying the clamping state and a second indicating lamp used for displaying the non-clamping state.

The invention provides a cover type bright annealing furnace which comprises a bottom support (1) and a heating outer cover (2), a stainless steel bell jar inner container (3) is arranged in the heating outer cover, the stainless steel bell jar inner container (3) is provided with a hollow inner cavity (5), and when the heating outer cover (2) is connected to the bottom support (1) in a buckled mode, a locking mechanism on the bottom support (1) locks the heating outer cover (2) to prevent the stainless steel bell jar inner container (3) from leaking air. The furnace cover is characterized in that the bottom support (1) comprises a flow guide cover (6), an impeller (7) is arranged on the lower portion of the flow guide cover (6), the impeller (7) is connected with a circulating fan (8) to drive the impeller (7) to rotate so as to enable air in the stainless steel bell jar inner container (3) to form circulating air, and a heat insulation plate (9) is arranged between the impeller (7) and the circulating fan (8) to prevent heat in an inner cavity of the furnace cover barrel (4) from losing from the bottom. According to the cover type bright annealing furnace, the surface temperature of the furnace does not exceed 40 DEG C, the temperature in a workshop is prevented from rising, the heating cost is reduced, electric energy is saved, meanwhile, cooling caused by abnormal temperature rising can be omitted, the working environment is improved, and the service life of the electric furnace is prolonged.

The utility model provides energy-saving bell jar type annealing furnace equipment. Comprising an annealing furnace body and a heat storage tank, a feeding door is arranged on the annealing furnace body, an operation panel is arranged on the feeding door, a heater is fixed to the bottom of the inner wall of the annealing furnace body, a heat exchange pipe is arranged on the inner wall of the annealing furnace body, a coil pipe is fixedly arranged on the inner wall of the heat storage tank, and a coil pipe is arranged on the coil pipe. The two ends of the coil pipe extend to the outer side of the heat storage tank and are connected with coil pipe connectors, the coil pipe connectors are communicated with the coil pipe connectors through connecting pipes, a water inlet is formed in the heat storage tank, and a water outlet is formed in the center of the bottom of the heat storage tank. The energy-saving bell jar type annealing furnace equipment provided by the utility model solves the problems that an existing annealing furnace is long in heating process, needs long-time preheating, is difficult to recycle, facilitates preheating of the annealing furnace, wastes energy and increases the production cost.

The invention relates to the technical field of annealing furnaces, in particular to an energy-saving cover well type spheroidizing annealing furnace and a using method thereof.The energy-saving cover well type spheroidizing annealing furnace comprises an annealing furnace body which comprises a furnace body and a furnace cover installed on the furnace body; the heat conduction component comprises a fan installed on the furnace cover and a first heat conduction channel arranged in the furnace cover and communicated with a fan shell, a second heat conduction channel is arranged in the furnace body, and a heat conduction insertion pipe and an insertion hole are arranged between the furnace cover and the furnace body. And by arranging the heat conduction insertion pipe and the insertion hole, heat at the furnace cover is transferred to the bottom of the furnace body, the problem that the temperature of the furnace bottom is not ideal is solved, and the quality and mechanical performance of wire rod spheroidizing annealing are improved. Although the arrangement of the heat conduction insertion pipe may influence the convenience of covering the furnace cover, the diameter of the insertion hole is set to be far greater than the diameter of the heat conduction insertion pipe, so that the requirement of accurate positioning is avoided, the furnace cover is more convenient to cover, and the working efficiency is improved.

The invention relates to a system (1) for controlling the temperature of a plurality of industrial furnaces (2), the system comprising a fluid line (3) and a conveying apparatus (4) for conducting a temperature-control fluid to the industrial furnaces (2), and the system having connection devices (6) for fluidically connecting the industrial furnaces (2) to the fluid line (3), wherein the fluid line (3) is designed as a loop line.