Lifting type bell jar furnace convenient to take and place

Abstract

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.

Description

TECHNICAL FIELD

[0001] The utility model belongs to high temperature sintering equipment technical field especially, be related to a lifting bell jar furnace convenient to take off. BACKGROUND

[0002] At present, bell jar furnace structure composition multiple and each part synergy. The furnace body is thickened with steel plate and filled with heat insulation material, and has good corrosion resistance and heat preservation performance, the internal bell jar often chooses heat -resistant stainless steel material, and the both are tightly sealed, and the material is isolated from the outside air, and part of the furnace body is movable, and the furnace table is fixed design, to adapt to different process load heavy workpiece. Heating element is rich and varied, covers resistance heating wire, electric heating plate, silicon carbon rod, silicon molybdenum rod and so on, also supports gas heating, aims at stable output heat energy. Temperature control system uses thermocouple and other temperature sensing elements to match controller, uses PID regulation to accurately control temperature, and automatically adjusts according to process preset heating parameters. The heat preservation layer adopts high-aluminum light, lightweight mullite, diatomite brick and refractory fiber combination, strong heat locking, improves heat efficiency.

[0003] Bell jar furnace is widely used, and plays a key role in many fields. In the field of ferrite production, it is a necessary equipment for professional manufacturing of low-power and high-μ value ferrite, which is of great significance to the quality guarantee of communication industry magnetic core; in the field of metal material processing, it can realize bright annealing, quenching and tempering of non-ferrous metal, black metal strip, coil, wire and other processes; in the field of ceramic technology, it helps zirconia, alumina ceramic sintering and sapphire, quartz product annealing; in the field of powder metallurgy process, it undertakes glue removal, pre-burning and burning process; in the field of electronic component manufacturing, it enables electronic ceramics, magnetic material sintering and other high-temperature processing, and improves the performance of components; in the field of scientific research and experiment, it serves colleges, industrial and mining enterprises laboratory, supports chemical analysis, physical measurement and material sintering melting test, especially meets the processing needs of fragile sintering materials.

[0004] The bell furnace in the prior art has many technical problems in use. In the material taking and placing and equipment layout, the similar bell, material lifting unit architecture is not finely divided, the material loading and unloading is cumbersome, the track design is poor, the land occupation is large, the space is limited, and the taking and placing and the subsequent processing link are slow, which reduces the operation efficiency. In terms of equipment stability and reliability, the unit frame connection is not stable, the shaking and displacement frequently occur during operation, which interferes with the heating and lifting operation continuity, and reduces the service life; the material table lacks synchronous lifting protection, and the lifting is inclined and stuck, which causes heat loss, sealing damage, no effective limiting component, easy to cause equipment damage and safety hazards due to lifting error, lifting failure rate and maintenance cost. In terms of heating and heat preservation performance, the heating components are unevenly distributed, the cavity is unevenly heated, and the material quality is uneven; the refractory cavity design is not optimal, the heat dead angle is large, the bottom heat dissipation is heavy, the energy utilization rate is low, the heating cycle is long, and the material table and the furnace body lack multi-layer and labyrinth type fine structures, the heat preservation is poor, and the energy consumption is high. In terms of smoke cleaning, the smoke exhaust device is missing or low in efficiency, the exhaust smoke is difficult to be discharged in time, which interferes with the heating and contaminates the equipment, and the flexible flow control structure is also lacking, which is difficult to adjust the air pressure atmosphere to match the process. The installation and transportation difficulties are that there is no precise positioning structure, the installation is difficult due to large size and high precision requirement, time-consuming and labor-intensive, high cost, and inconvenient to split and transport, which is limited. Practical new type content

[0005] Therefore, the utility model aims at providing a lifting type bell furnace convenient for taking and placing to solve part or all of the technical problems in the background art.

[0006] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0007] A lifting type bell furnace convenient for taking and placing, comprising a bell unit and a material lifting unit, wherein the bell unit is arranged above the material lifting unit. The above structure constructs the basic framework of the bell furnace, divides the layout positions of the two core function parts, so that the material can be operated with the bell unit by means of the material lifting unit, and the purpose of convenient material taking and placing is achieved. The structure is convenient for assembly and maintenance, and guarantees the functionality and stability of the equipment; the bell unit above is used for creating a material heating environment, and the material lifting unit below is responsible for material conveying, which is clear in division of labor and consistent with the operation logic, thereby improving the overall operation efficiency.

[0008] The bell unit comprises a refractory cavity, a heating assembly, a bell unit frame, the refractory cavity is arranged on the bell unit frame, and a plurality of heating assemblies are arranged on the inner wall of the refractory cavity in a surrounding manner. Preferably, the heating assemblies are evenly distributed around the inner wall of the refractory cavity. The heating assemblies pass out of the refractory cavity from the upper part, and the plurality of heating assemblies are electrically connected to the outside from the top of the bell unit. The evenly distributed heating assemblies can ensure uniform heating in the refractory cavity and stable and controllable temperature in the furnace. The heating assemblies pass out of the upper part and are electrically connected to the outside, which facilitates the connection of the power supply and ensures the smooth realization of the heating function to meet the heating treatment requirements of the materials in the furnace. The refractory cavity is high-temperature-resistant and heat-insulating, which protects the main structure of the equipment and maintains the stability of the high-temperature environment inside; the evenly distributed heating assemblies evenly distribute the heat, avoiding local overheating or low-temperature areas, ensuring consistent heating of the materials and uniform quality, and the electrical connection from the upper part facilitates wiring, maintenance, and centralized control of power supply, thereby improving the reliability and efficiency of the operation of the bell unit as a whole.

[0009] The material lifting unit comprises a material lifting unit frame, a material table, a lifting device, and an up-and-down material carrying track. The material table and the lifting device are arranged inside the material lifting unit frame, the lifting device pushes the material table up and down, and the up-and-down material carrying track is partially arranged outside the material lifting unit frame. The material table is arranged on the up-and-down material carrying track and is pushed into the material lifting unit frame through the up-and-down material carrying track. Part of the up-and-down material carrying track is located inside the material lifting unit frame, and part of the up-and-down material carrying track is located outside the material lifting unit frame. The material table moves on the up-and-down material carrying track, moves from outside the material lifting unit frame to inside the material lifting unit frame, and is sent into the upper refractory cavity under the action of the lifting device. The above structure facilitates the entry and exit of materials into the material lifting unit, and facilitates the accurate placement of materials by the operator on the material table, and then the materials are smoothly sent into the refractory cavity of the bell unit for heating and other treatments, realizing efficient and convenient material taking and placing operations. The material lifting unit frame is integrated with lifting and material placement functions, and has a compact structure; the extended track facilitates material loading and unloading, reduces the overall land occupation of the equipment, and improves the operation convenience; precise lifting ensures accurate cooperation between the material and the bell unit, facilitates stable process execution, effectively improves the material processing efficiency, and makes the material transfer process smoother.

[0010] The bell unit frame and the material lifting unit frame are fixedly connected. Through the above stable connection, the shaking and displacement hazards between the units are eliminated, and problems such as material transfer deviation and collision are avoided; the anti-external interference ability of the equipment is enhanced, the service life is prolonged, the continuity and accuracy of heating, lifting, and other operations are ensured, and the overall reliability is significantly improved, laying a solid foundation for long-term stable operation of the equipment.

[0011] The fire-resistant cavity is bell-shaped. The structure is beneficial to internal heat gathering and circulation, in line with the principle of heat, so that the heat distribution is more reasonable and efficient, and meets the requirements of heating treatment materials for temperature field uniformity and stability, creating a good heat environment for material heating. Thanks to the bell-shaped structure, hot air can be naturally circulated, reducing heat dead angles, making heat more fully wrap the material, accelerating the heating and uniform heating; compared with the conventional shape, it can improve the heating efficiency and reduce the energy consumption, create favorable conditions for the full heating reaction of the material, and improve the material processing quality and efficiency.

[0012] In a structure that can optimize the foregoing scheme, the heating assembly that penetrates the outer part of the fire-resistant cavity is fixed by an electrode clamp, and the heating assembly that penetrates the outside of the fire-resistant cavity is electrically connected to the copper bar at the top of the bell-shaped unit through a star-shaped connection. The part of the heating assembly that penetrates the outside of the fire-resistant cavity is fixed by an electrode clamp to ensure the stability of the penetrating part and prevent shaking and displacement from affecting electrical connection; the star-shaped connection and the top copper bar electrical connection can effectively integrate the circuit, standardize the wiring, ensure stable power transmission to each heating assembly, and maintain normal and efficient operation of the heating assembly. The fixing structure effectively prevents the components from shaking and damaging, and ensures good contact, prolonging the service life; the star-shaped connection balances the current distribution, facilitates troubleshooting and maintenance, ensures stable output of heating power, and improves the safety, stability and maintainability of the heating system in all directions, ensuring stable and orderly development of heating work.

[0013] In a structure that can optimize the foregoing scheme, the fire-resistant cavity is provided with a smoke exhaust device at the top, which includes a smoke exhaust duct and a turnover cover. The smoke exhaust duct is connected to the inside of the fire-resistant cavity, and the turnover cover is arranged at the top of the smoke exhaust duct. Preferably, the smoke exhaust device is four groups arranged longitudinally. The smoke exhaust device facilitates the exhaust of waste gas, smoke and the like generated during the heating process in the furnace, keeps the furnace clean, controls the stable air pressure and atmosphere in the furnace, facilitates the normal development of the material processing process, and the turnover cover can be opened and closed as needed to flexibly control the smoke exhaust operation. The four longitudinal smoke exhaust devices are evenly distributed, efficiently exhaust smoke, and avoid the accumulation of waste gas to interfere with material heating and pollute equipment; the turnover cover can be opened and closed as needed to accurately control the smoke exhaust time and flow, which is beneficial to maintaining a stable process environment in the furnace, ensuring the quality of material processing, and allowing the material processing process to be free from interference from smoke exhaust problems.

[0014] In a structure that can optimize the foregoing scheme, a temperature measuring device is arranged at the top of the refractory cavity, penetrates into the interior of the refractory cavity, and is electrically connected with the outside, and the electrical connection line is arranged in the wire slot at the upper part of the bell unit frame. The temperature measuring device is a thermocouple, and preferably, the temperature measuring device is two groups. By penetrating into the interior of the refractory cavity and being electrically connected with the outside, real-time temperature precise monitoring and feedback control of the cavity are realized, the wire slot suspends the isolation wire harness from the high-temperature area, prevents the wire harness from aging and damage, ensures long-term stable work of the temperature measuring and related control lines, and precisely controls the temperature in the furnace within the process requirement range. Two groups of thermocouples monitor multiple points, and the data is more accurate and comprehensive; the wire slot isolates the high temperature from the wire harness, prevents the wire harness from aging and short circuit, and ensures stable signal transmission, so as to accurately control the temperature, improve the material heating precision and repeatability, ensure product quality consistency, and meet high-standard production requirements.

[0015] In a structure that can optimize the foregoing scheme, a refractory layer protrusion is arranged at the lower part of the interior of the refractory cavity, and the heating assembly is located above the refractory layer protrusion. The refractory layer protrusion cooperates with the heating assembly located above it to optimize the heat distribution direction, reduce heat loss to the bottom, promote heat concentration in the effective area of material processing, and improve the heating efficiency of the equipment. The protrusion changes the heat conduction path, hinders the downward escape of heat, allows more heat to remain around the material, improves energy utilization rate and heating speed, reduces energy consumption, shortens the material heating period, improves production efficiency, helps the equipment to save energy and increase efficiency, and strengthens the material heating effect.

[0016] In a structure that can optimize the foregoing scheme, the material table includes a carrying table, a refractory layer, corundum support columns, a material plane, and track wheels. The track wheels are arranged below the carrying table, the refractory layer is arranged on the carrying table, the material plane is arranged above the refractory layer, the corundum support columns penetrate into the refractory layer, the top of the corundum support columns supports the material plane, and the track wheels are arranged on the feeding and discharging carrying track. The track wheels are used for running on the feeding and discharging carrying track, facilitating the material table to enter and exit the material lifting unit; the refractory layer is multi-layered and stacked, cooperates with the protrusion of the refractory cavity to form a labyrinth structure, not only bears the material, but also prevents heat loss from the bottom, ensuring that the material table stably bears the material while helping the equipment to save energy. The track wheels facilitate the material table to run on the carrying track, realizing easy loading and unloading; the refractory layer is multi-layered and stacked, has the functions of bearing and heat insulation, forms a labyrinth structure with the protrusion, greatly reduces heat loss from the bottom, ensures the heating effect of the material, and on the basis of stably bearing the material, saves energy and increases efficiency while protecting the equipment components.

[0017] In an optimized structure of the foregoing scheme, the lifting device comprises a motor, a speed reducer, a connecting rod, a lifting assembly, the lifting assembly comprises a converter, a lead screw, an optical axis, a nut, and a lifting platform, the motor is in driving connection with the speed reducer, the converter is in driving connection with the speed reducer through the connecting rod, the lead screw is vertically arranged, the lead screw is in driving connection with the converter, the optical axis is arranged in parallel with the lead screw, the nut is fixed on the lifting platform, the lead screw passes through the lifting platform through the nut, and the optical axis passes through the lifting platform. According to the fixing needs, each component on the lifting device is fixedly connected or movably connected with the ground or the material lifting unit frame. When the material platform is pushed to the lifting position along the feeding and discharging carrying track, the top of the lifting platform is below the carrying platform of the material platform. When the lifting platform is lifted, the material platform is lifted, and the lifting process of the material platform is completed. Preferably, two optical axes are arranged on both sides of the lead screw. The components are in cooperative transmission, the motor drives the lifting assembly through the speed reducer and the connecting rod, the lead screw and the optical axis cooperate to guide the stable lifting of the lifting platform, the nut is fixed on the lifting platform to realize accurate displacement, and the stable and accurate lifting of the material platform is realized. The height requirement of the material in and out of the refractory cavity is met, and the smooth material transfer and accurate positioning are ensured. The motor and the speed reducer cooperate to flexibly adjust the speed and increase the force; the lead screw and the optical axis ensure stable lifting and prevent shaking; the two optical axes are distributed on both sides of the lead screw to strengthen the stability, realize accurate and smooth lifting, reduce the problems such as jamming and tilting of the material platform, ensure reliable operation, and ensure safe and efficient material lifting operation.

[0018] In an optimized structure of the foregoing scheme, the lifting assembly is provided in two groups and arranged on both sides of the feeding and discharging carrying track. The speed reducer extends the connecting rod to the two sides and is connected with the converters on the two sides. When the motor operates, the lifting platforms on the two sides are lifted synchronously to avoid tilting and jamming of the material platform and ensure stable lifting of the material. At the same time, the sealing and heat preservation of the equipment are improved, and problems such as heat loss and damage to the furnace body caused by unstable lifting are reduced. Synchronous lifting prevents tilting and uneven stress of the material platform and prevents material from falling and being damaged. The sealing of the equipment is improved, heat leakage is reduced, the high temperature in the furnace is maintained stable, energy is saved, the material heating environment is stable, the process is stable, the material lifting process and the equipment operation state are optimized in all directions.

[0019] In an optimized structure of the foregoing scheme, the lifting assembly is provided in two groups and arranged on both sides of the feeding and discharging carrying track. The speed reducer extends the connecting rod to the two sides and is connected with the converters on the two sides. When the motor operates, the lifting platforms on the two sides are lifted synchronously to avoid tilting and jamming of the material platform and ensure stable lifting of the material. At the same time, the sealing and heat preservation of the equipment are improved, and problems such as heat loss and damage to the furnace body caused by unstable lifting are reduced. Synchronous lifting prevents tilting and uneven stress of the material platform and prevents material from falling and being damaged. The sealing of the equipment is improved, heat leakage is reduced, the high temperature in the furnace is maintained stable, energy is saved, the material heating environment is stable, the process is stable, the material lifting process and the equipment operation state are optimized in all directions.

[0020] In a structure that can optimize the foregoing scheme, a push-pull rod is further included, which is detachably arranged on a push-pull rod fixing groove fixed on the side of the carrying table. When in operation, the auxiliary material table moves on the feeding and discharging carrying track, reducing the difficulty of manual pushing and pulling, and can be detached after operation without affecting the normal operation of the equipment, improving the convenience and flexibility of the material table in and out of the material lifting unit. The push-pull rod is used as needed, reducing labor intensity and improving material loading and unloading efficiency; the detachable feature avoids interfering with the operation of the equipment, reduces component interference, is flexible and practical, effectively optimizes the convenience of material operation and the functionality of the equipment, and makes the material loading and unloading process more relaxed and efficient.

[0021] In a structure that can optimize the foregoing scheme, a positioning plate is further included, which includes an upper positioning plate, a lower positioning plate and a positioning cone. The positioning plate is arranged at the connection part of the bell cover unit and the material lifting unit. The upper positioning plate is fixed on the bell cover unit frame, the lower positioning plate is arranged on the material lifting unit frame, the positioning cone is arranged on the lower positioning plate, the upper positioning plate is provided with a positioning hole, the positioning cone cooperates with the positioning hole, and the upper positioning plate cooperates with the lower positioning plate to be fixed. The bell cover furnace requires a higher installation space. In the case where the space height is not enough, the bell cover unit and the material lifting unit can be separated and transported to the installation position for assembly. However, since the material lifting unit cooperates with the bell cover unit to complete the lifting operation, a higher installation precision is required. Therefore, by pre-setting the positioning plate, accurate installation can be realized by the cooperation of the positioning plate, reducing the installation difficulty of the equipment.

[0022] Compared with the prior art, the lifting bell cover furnace convenient to take and place has the following advantages:

[0023] 1. The bell cover furnace is divided into a bell cover unit and a material lifting unit, and the layout is clear and reasonable. The feeding and discharging carrying track part of the material lifting unit is outside the frame, the material table can be easily pushed into the frame along the track, the material loading and unloading is facilitated, and the equipment occupies less space. With the help of accurate lifting devices, the material table can be stably and accurately sent into the refractory cavity of the bell cover unit, the whole material taking and placing process is smooth, the material processing links can be quickly connected, and the operation efficiency is greatly improved.

[0024] 2. The bell cover unit frame and the material lifting unit frame are stably connected, the shaking and displacement between the two units are eliminated, the anti-external interference ability of the equipment is enhanced, the heating, lifting and other operations are ensured to be coherent and accurate, and the service life of the equipment is prolonged. The two sets of synchronous lifting assemblies ensure the stable lifting of the material table, avoid tilting and jamming, reduce heat loss and damage to the furnace body seal, maintain the stability of the high temperature in the furnace, and facilitate stable process execution. The limiting assembly is arranged on the side of the carrying table and cooperates with the lifting table limiting hole to limit the lifting position of the material table, prevent equipment damage and personnel safety risks caused by lifting without reaching the position, and reduce the failure rate and maintenance cost.

[0025] 3. Inside the bell-shaped unit, the refractory cavity is heat-resistant and insulating, protecting the main structure of the equipment while maintaining a stable high-temperature environment inside. Heating components are evenly distributed on the inner wall of the refractory cavity, ensuring uniform heating, avoiding localized temperature differences, and ensuring consistent material heating and stable quality. The bell-shaped refractory cavity is designed according to thermal principles, optimizing heat distribution and flow, reducing heat dead zones, improving heating efficiency, and reducing energy consumption. The raised refractory layer works in conjunction with the heating components to reduce heat loss from the bottom, concentrating more heat in the material processing area, improving energy utilization, and shortening the material heating cycle.

[0026] 4. The material platform features a practical structural design. Bottom-mounted wheels are compatible with loading and unloading tracks, facilitating easy access to and from the material lifting unit and enabling effortless loading and unloading. Multiple layers of refractory material support also provide insulation, forming a labyrinth structure with the refractory cavity protrusions to reduce heat loss from the bottom, ensuring optimal material heating and contributing to energy conservation. Corundum support columns further stabilize the material platform, enhancing overall practicality and reliability.

[0027] 5. The top of the refractory cavity is equipped with a smoke exhaust system, including a smoke exhaust duct and a tilting cover, with four sets arranged longitudinally. The smoke exhaust system can promptly remove the waste gas and dust generated during heating in the furnace. The tilting cover opens and closes as needed to control the timing and flow of smoke exhaust, keeping the furnace clean, stabilizing the gas pressure and atmosphere inside the furnace, preventing the accumulation of waste gas from interfering with material heating and contaminating the equipment, and ensuring the normal operation of the material handling process.

[0028] 6. Bell-shaped furnaces are large in size and require high installation precision, often encountering limitations in installation space. This solution sets a positioning plate at the connection between the bell-shaped unit and the material lifting unit. After disassembly and transportation, high-precision assembly can be achieved by relying on the cooperation of the positioning cone and positioning holes and the fixing of the upper and lower plates, reducing installation difficulty and reducing on-site installation and commissioning time and labor costs.

[0029] 7. The push-pull rod assists the material platform in moving along the loading and unloading conveyor track, reducing the difficulty of manual pushing and pulling. It can be disassembled after operation without affecting the normal operation of the equipment, improving the convenience and flexibility of the material platform in and out of the material lifting unit, increasing the efficiency of material loading and unloading, avoiding hindering the operation of the equipment, and reducing component interference. Attached Figure Description

[0030] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0031] Figure 1 This is a schematic diagram of the lifting bell-shaped furnace structure that is easy to pick up and put down according to this utility model;

[0032] Figure 2 The present utility model Figure 1 Enlarged view of the local structure of region F;

[0033] Figure 3 The utility model discloses a lifting bell furnace profile structure schematic diagram convenient to take and place

[0034] Figure 4 The utility model discloses a C area local structure enlarged view Figure 3

[0035] Figure 5 The utility model discloses a D area local structure enlarged view Figure 3

[0036] Figure 6 The utility model discloses an E area local structure enlarged view Figure 3

[0037] Figure 7 The utility model discloses a lifting bell furnace side view convenient to take and place

[0038] Figure 8 The utility model discloses a G area local structure enlarged view Figure 7

[0039] Figure 9 The utility model discloses a positioning plate structure schematic diagram

[0040] Figure 10 The utility model discloses a lifting bell furnace overhead wiring diagram convenient to take and place

[0041] Mark explanation:

[0042] A, bell cover unit, B, material lifting unit

[0043] 1, refractory cavity, 2, heating assembly, 3, bell cover unit frame, 4, material lifting unit frame, 5, material table, 6, lifting device, 7, feeding and discharging carrying track, 8, copper bar, 9, electrode clamp, 10, smoke exhaust device, 11, temperature measuring device, 12, wire slot, 13, refractory layer protrusion, 14, limiting assembly, 15, positioning plate, 16, push-pull rod, 17, push-pull rod fixed groove

[0044] 51, carrying table, 52, refractory layer, 53, corundum support column, 54, material plane, 55, track wheel

[0045] 61, motor, 62, speed reducer, 63, connecting rod, 64, converter, 65, screw rod, 66, optical axis, 67, nut, 68, lifting platform

[0046] 101, smoke exhaust channel, 102, turnover cover

[0047] ​​​​151. Upper positioning plate; 152. Lower positioning plate; 153. Positioning cone; 154. Positioning hole. Detailed Implementation

[0048] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0049] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0050] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0051] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0052] 1. Equipment Structure

[0053] The application relates to a lifting type bell furnace convenient to take and place, which is mainly composed of a bell unit A and a material lifting unit B. The bell unit A is arranged above the material lifting unit B, the bell unit frame 3 is made of high-strength metal material and has stable supporting performance, a refractory cavity 1 is arranged on the bell unit frame 3, the refractory cavity 1 is bell-shaped, is made of high-quality high-temperature-resistant and heat-insulating ceramic material, and the inner wall of the refractory cavity 1 is closely surrounded by uniformly distributed heating assemblies 2, the heating assemblies 2 are made of silicon molybdenum rods, and a total of six groups of the heating assemblies 2 are arranged, penetrate through the upper portion of the refractory cavity 1, are fixed by electrode clamps 9, are electrically connected with a top copper bar 8 in a star-shaped connection mode, and guarantee stable and safe power transmission. Four groups of smoke exhaust devices 10 are vertically arranged on the top of the refractory cavity 1, a smoke exhaust duct 101 of each group of the smoke exhaust devices 10 penetrates into the cavity to ensure that waste gas is effectively exhausted, and a turnover cover 102 is flexibly opened and closed; meanwhile, two groups of thermocouples are arranged as temperature measuring devices 11, and electric connection lines are arranged in wire grooves 12, and the wire grooves are designed to be suspended to be isolated from high temperature. A refractory layer protrusion 13 is arranged at the lower portion of the refractory cavity 1, and the refractory layer protrusion 13 is matched with the heating assemblies 2 to optimize heat distribution.

[0054] The material lifting unit frame 4 of the material lifting unit B is also a metal frame structure, the material lifting unit frame 4 is internally provided with a material table 5 and a lifting device 6, and externally connected with exposed feeding and discharging carrying tracks 7. Track wheels 55 arranged at the bottom of the material table 5 are matched with the carrying tracks 7, feeding and discharging is facilitated, a plurality of refractory layers 52 of the material table 5 are matched with the refractory cavity protrusion 13 to form a labyrinth structure, and corundum supporting columns 53 stably support a material plane 54. The lifting device 6 is provided with a motor 61, a speed reducer 62, a connecting rod 63 and two groups of lifting assemblies oppositely arranged on both sides of the carrying tracks 7, each group of the lifting assemblies comprises a converter 64, a screw rod 65, two parallel light shafts 66, a nut 67 and a lifting table 68, and the components are cooperatively operated to accurately lift the material table 5. In addition, limiting assemblies 14 are arranged on the side of a carrying table 51, a push-pull rod 16 is detachably arranged on a fixed groove 17, and a positioning plate 15 is arranged at the connection part of the bell unit A and the material lifting unit B, the positioning plate 15 comprises an upper positioning plate 151, a lower positioning plate 152, a positioning cone 153 and a positioning hole 154, and the positioning plate 15 assists in installation and positioning.

[0055] 2. Device operation process

[0056] In the initial stage, an operator places materials on the material plane 54 of the material table 5, pushes the material table 5 into the material lifting unit frame 4 through the feeding and discharging carrying tracks 7 by means of the track wheels 55, and drives the lifting device 6 to start, so that the motor 61 is operated, the speed of the motor 61 is adjusted by the speed reducer 62, the connecting rod 63 drives the two converters 64, the screw rod 65 and the light shafts 66 are cooperatively operated, the nut 67 is rotated with the screw rod 65 to realize accurate displacement on the lifting table 68, the two light shafts 66 guarantee stable lifting without shaking, the lifting table 68 is stably lifted, and the material table 5 is stably lifted into the refractory cavity 1 of the bell unit A.

[0057] During heating, the heating assembly 2 is powered to generate heat, and the heat is uniformly distributed in the bell-shaped refractory cavity 1, and the bottom refractory layer protrusion 13 prevents heat loss, ensuring efficient and uniform heating of the material. The temperature measuring device 11 monitors the temperature in real time and feeds back, and the temperature control system accurately adjusts the heating power accordingly. The smoke exhaust device 10 opens the turnover cover 102 in time according to the process requirements, exhausts the waste gas dust, and stabilizes the furnace gas pressure atmosphere.

[0058] After the material processing is completed, the lifting device 6 is reversed, the material table 5 is lowered back to the material lifting unit B, and the push-pull rod 16 is used to conveniently move out the material table 5 if necessary, and the material taking and placing operation is completed. If the equipment needs to be installed in other places, after the cover unit A and the material lifting unit B are transported, the positioning cone 153 of the positioning plate 15 is matched with the positioning hole 154, and the upper and lower plates are fixed, so that high-precision assembly is easily realized, and normal operation of the equipment is ensured.

[0059] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A liftable bell-type furnace for facilitating loading and unloading, characterized in that: It comprises bell jar unit (A) and material lifting unit (B), the bell jar unit (A) is arranged above the material lifting unit (B); The bell jar unit (A) comprises refractory cavity (1), heating assembly (2) and bell jar unit frame (3), the refractory cavity (1) is arranged on the bell jar unit frame (3), a plurality of heating assemblies (2) are arranged on the inner wall of the refractory cavity (1) and are arranged from the upper part to the outside of the refractory cavity (1), and the plurality of heating assemblies (2) are electrically connected with the outside from the top of the bell jar unit (A); The material lifting unit (B) comprises material lifting unit frame (4), material table (5), lifting device (6) and loading and unloading carrying track (7), the material table (5) and the lifting device (6) are arranged inside the material lifting unit frame (4), the lifting device (6) pushes the material table (5) to lift, and the loading and unloading carrying track (7) is partially arranged outside the material lifting unit frame (4), the material table (5) is arranged on the loading and unloading carrying track (7), and the material table (5) is pushed into the material lifting unit frame (4) through the loading and unloading carrying track (7). The bell jar unit frame (3) is fixedly connected with the material lifting unit frame (4).

2. The easy to access bell-type furnace of claim 1, wherein: The part of the heating assembly (2) passing out of the refractory cavity (1) is fixed by electrode clamp (9), and the heating assembly (2) passing out of the refractory cavity (1) is electrically connected with the copper bar (8) at the top of the bell jar unit (A) through star-shaped connection.

3. The easy to access bell-type furnace of claim 1, wherein: The refractory cavity (1) is provided with smoke exhaust device (10) at the top, the smoke exhaust device (10) comprises smoke exhaust duct (101) and turnover cover (102), the smoke exhaust duct (101) is communicated with the inside of the refractory cavity (1), and the turnover cover (102) is arranged at the top of the smoke exhaust duct (101).

4. The easy to access bell-type furnace of claim 1, wherein: The refractory cavity (1) is provided with temperature measuring device (11) at the top, the temperature measuring device (11) penetrates into the inside of the refractory cavity (1), the temperature measuring device (11) is electrically connected with the outside, and the electrical connection line is arranged in the wire slot (12) at the upper part of the bell jar unit frame (3).

5. The easy to access bell-type furnace of claim 1, wherein: The refractory cavity (1) is provided with a circle of refractory layer protrusion (13) at the lower part inside, and the heating assembly (2) is located above the refractory layer protrusion (13).

6. The easy to access lift bell furnace of claim 1, wherein: The material table (5) comprises carrying table (51), refractory layer (52), corundum support column (53), material plane (54) and track wheel (55), the track wheel (55) is arranged below the carrying table (51), the refractory layer (52) is arranged on the carrying table (51), the material plane (54) is arranged above the refractory layer (52), a plurality of corundum support columns (53) penetrate into the refractory layer (52), the corundum support column (53) supports the material plane (54) at the top, and the track wheel (55) is arranged on the loading and unloading carrying track (7).

7. The easy to load and unload bell-type furnace of claim 6, wherein: The lifting device (6) comprises a motor (61), a speed reducer (62), a connecting rod (63), a lifting assembly, the lifting assembly comprises a converter (64), a lead screw (65), an optical axis (66), a nut (67), a lifting platform (68), the motor (61) is in driving connection with the speed reducer (62), the converter (64) is in driving connection with the speed reducer (62) through the connecting rod (63), the lead screw (65) is in driving connection with the converter (64), the optical axis (66) is arranged in parallel with the lead screw (65), the nut (67) is fixed on the lifting platform (68), the lead screw (65) passes through the lifting platform (68) through the nut (67), and the optical axis (66) passes through the lifting platform.

8. The easy to access lift bell furnace of claim 7, wherein: The lifting assembly is arranged on both sides of the feeding and discharging carrying track (7) in a relative mode.

9. The easy to access lift bell furnace of claim 7, wherein: The limiting assembly (14) is arranged on the side of the carrying platform (51) and is matched with the limiting hole on the lifting platform (68).

10. The easy to access bell-type furnace of claim 1, wherein: The positioning plate (15) comprises an upper positioning plate (151), a lower positioning plate (152) and a positioning cone (153), the positioning plate (15) is arranged at the connecting part of the bell jar unit (A) and the material lifting unit (B), the upper positioning plate (151) is fixed on the bell jar unit frame (3), the lower positioning plate (152) is arranged on the material lifting unit frame (4), the positioning cone (153) is arranged on the lower positioning plate (152), the positioning hole (154) is formed in the upper positioning plate (151), the positioning cone (153) is matched with the positioning hole (154), and the upper positioning plate (151) and the lower positioning plate (152) are matched and fixed.

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