Ultrahigh-temperature bolt type continuous production furnace
By using high-temperature resistant materials and structural design, the problems of deformation, adhesion and corrosion of traditional production furnaces in ultra-high temperature environments have been solved, realizing a continuous and stable production process and improving heat utilization efficiency.
Patent Information
- Application Number
- CN202511144928.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-15
- Publication Date
- 2025-10-28
AI Technical Summary
Traditional production furnaces are prone to deformation and damage in ultra-high temperature environments, resulting in poor material conveying and easy adhesion, leading to corrosion, affecting production continuity and efficiency, and having low heat utilization efficiency.
The spiral conveyor shaft and inner shell are made of graphite, carbon, or ceramic materials, combined with high-temperature heating elements and multi-layer insulation structure, and equipped with a moving ring and cooling system to achieve continuous and stable material conveying and efficient heating and cooling.
It extends the service life of the furnace body, enables continuous material conveying and efficient energy utilization, and improves the stability and efficiency of production.
Smart Images
Figure CN120846069A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of production furnace technology, specifically to an ultra-high temperature bolt-type continuous production furnace. Background Art
[0002] In industrial production, many materials require processing in high-temperature environments, such as the sintering and calcination of certain metals and ceramics. Traditional production furnaces face several problems when continuously producing materials in ultra-high temperature environments. For example, the furnace body has limited high-temperature resistance and is prone to damage; materials are prone to sticking, clogging, and corrosion during transport, affecting production continuity and efficiency; and heat utilization efficiency is low during heating and cooling stages, leading to energy waste. Therefore, a continuous production furnace is needed that can adapt to ultra-high temperature environments, effectively solve material transport problems, and improve energy utilization efficiency. Summary of the Invention
[0003] The purpose of this invention is to address the above-mentioned problems by providing an ultra-high temperature bolt-type continuous production furnace, which solves the technical problems of deformation and damage that exist in traditional production furnaces, meets the requirements for long-term stable operation, and addresses the issue that under high temperature conditions, materials tend to stick to the inner wall of the connection, leading to poor material conveying. Moreover, the sticky materials can corrode the furnace body, affecting its service life and causing process stagnation.
[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: An ultra-high temperature bolt-type continuous production furnace includes a preheating section, a high temperature section, and a slow cooling section arranged sequentially from top to bottom. A feeding section is provided on the preheating section. The lower side of the preheating section away from the feeding section is connected to the high temperature section through a first connecting section. The lower side of the high temperature section away from the first connecting section is connected to the slow cooling section through a second connecting section.
[0005] As a further improvement to the above solution, the preheating section includes a first spiral conveying shaft and a first inner shell. The first spiral conveying shaft is a spiral rod-shaped structure made of graphite, carbon-carbon, or ceramic materials, used for conveying materials. The first inner shell is a hollow tubular structure made of graphite, carbon-carbon, or ceramic materials. A heating module is installed below the first inner shell. The heating element of the heating module often uses high-temperature heating elements such as silicon carbide rods or silicon molybdenum rods. These elements have high resistivity and good high-temperature stability, can withstand ultra-high temperature environments, and generate a large amount of heat. For example, silicon molybdenum rods... To reduce heat loss and improve heating efficiency, a multi-layer insulation structure is used around the heating module, such as high-purity alumina fiber blankets, which have low thermal conductivity and low heat capacity, effectively blocking heat transfer to the outside of the furnace. Mullite fiber boards are also used to further enhance the insulation effect. High-temperature ceramic screws and anchor screws are used to fix the heating elements and insulation materials in the furnace body. These screws are heat-resistant and not easily deformed or damaged, ensuring that the heating elements and insulation materials maintain a stable position and structure at high temperatures. The material is heated to 400-1000℃ in the preheating section.
[0006] The heat preservation module utilizes the resistivity of the heating element to generate Joule heat after being energized, thus raising its own temperature. It then transfers heat to the material or workpiece inside the furnace through thermal radiation and conduction to achieve the heating purpose. High-temperature thermocouples, such as tungsten-rhenium thermocouples, are inserted into specific positions inside the furnace to measure the furnace temperature in real time and convert the temperature signal into an electrical signal to be transmitted to the temperature controller. The feeding section is used for material to enter the preheating section and has a bucket-shaped structure that is larger at the top and smaller at the bottom.
[0007] As a further improvement to the above solution, the high-temperature section has the same structure as the preheating section, and the high-temperature section heats the material to 900-3000℃. The structure of the first connecting section is the same as the structure of the second connecting section.
[0008] As a further improvement to the above solution, the second connecting part includes a guide cylinder, an insulation sleeve is provided on the outside of the guide cylinder, and a movable ring is movably provided inside the guide cylinder, which can reciprocate linearly along the inner wall of the guide cylinder. The upper part of the movable ring has an arc structure and the lower part has an inclination angle.
[0009] As a further improvement to the above solution, the movable ring is connected to the lead screw nut via a connecting plate. The lead screw nut is matched with the lead screw. A folding plate is installed at the gap through which the connecting plate passes. The folding plate serves as an isolation device. The folding plate can be placed below the connecting plate, or the gap through which the connecting plate passes can be filled as needed. The second motor is driven, and both the shaft and the lead screw rotate. The lead screw nut moves linearly in the vertical direction, preventing material from sticking to the inner wall of the guide cylinder. This solves the technical problem of material corrosion of the guide cylinder and achieves the requirement of continuous material conveying. A gate is installed inside the guide cylinder, and the gate is connected to the telescopic shaft end of the hydraulic cylinder.
[0010] As a further improvement to the above solution, the driven pulley on the lead screw is connected to the driving pulley on the rotating shaft via a belt, and the rotating shaft is connected to the output shaft end of the second motor.
[0011] As a further improvement to the above solution, the guide sleeve provided on the side of the lead screw nut is matched with the guide rod.
[0012] As a further improvement to the above solution, the slow cooling section includes an outer shell, a second inner shell is provided inside the outer shell, a second conveying screw shaft provided inside the second inner shell is connected to the output shaft end of a third motor, a plurality of cooling water tanks are provided outside the second inner shell, the cooling water tanks are hollow box structures, and are filled with coolant. Adjacent cooling water tanks are connected by connecting pipes, and a discharge pipe provided on the side of the second inner shell extends downward out of the outer shell.
[0013] As a further improvement to the above solution, multiple heat sinks are arranged at intervals on the outside of the second inner shell. A first pipe is provided at the bottom of the cooling water tank near the third motor, extending out of the outer shell and connecting to the output end of the booster pump. The input end of the booster pump is connected to a cooling water source. A first control valve, a first flow sensor, and a first temperature sensor are sequentially installed on the first pipe. A second pipe is provided at the bottom of the cooling water tank near the discharge pipe. A second flow sensor, a second control valve, and a second temperature sensor are installed on the second pipe. Cooling water enters the cooling water tank from the first pipe, absorbs heat from the second inner shell through heat transfer, and recovers the coolant after heat absorption. The booster pump provides pressure to the coolant to ensure that the coolant can flow out from the second pipe.
[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: traditional furnace body materials are prone to deformation and damage when facing ultra-high temperature environments, and cannot meet the requirements of long-term stable operation. The present application has the requirements of high temperature resistance and continuous, industrialized and large-scale production.
[0015] Under high-temperature conditions, materials tend to stick to the inner walls of the first and second connecting parts, leading to poor material conveying. Furthermore, the sticky material can corrode the furnace body, affecting its service life. Therefore, this application uses a spiral conveyor shaft and inner shell made of graphite, carbon-carbon, or ceramic materials, along with high-temperature ceramic screws, anchor screws, and other fixing screws to secure heating elements and insulation materials. This enables the furnace body to operate stably in ultra-high-temperature environments, extending its service life. By installing a movable ring and a drive device inside the guide cylinder, the movable ring can perform reciprocating linear motion, preventing materials from sticking to the inner wall of the guide cylinder and thus preventing corrosion. This achieves the requirement for continuous material conveying production.
[0016] The heating modules of the preheating section, high-temperature section, and slow cooling section use high-temperature heating elements such as silicon carbide rods and silicon molybdenum rods, and are surrounded by multi-layer insulation structures, such as high-purity alumina fiber blankets and mullite fiber boards, which effectively prevent heat from being transferred to the outside of the furnace and improve heating efficiency.
[0017] The cooling structure, consisting of a cooling water tank, heat sink, and booster pump in the slow cooling section, can effectively cool the materials. Furthermore, the precise control of the coolant through sensors and control valves ensures the quality of material cooling, resulting in a continuous and stable production process. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the main structure of the present invention.
[0019] Figure 2 This is a schematic diagram of the main structure at the location of the slow cooling section in this invention.
[0020] Figure 3 This is a schematic diagram of the main structure at the location of the second connecting part in this invention.
[0021] Figure 4 for Figure 3 A magnified view of a portion of location A in the middle.
[0022] Figure 5 This is a three-dimensional structural diagram of the material guide cylinder position in this invention.
[0023] The text labels in the diagram represent: 1. Feeding section; 2. Preheating section; 3. First connecting section; 4. High-temperature section; 5. Second connecting section; 6. Slow cooling section; 201. First motor; 202. First screw conveyor shaft; 203. First inner shell; 204. Heating module; 501. Insulation sleeve; 502. Guide cylinder; 503. Lead screw; 504. Guide rod; 505. Second motor; 506. Guide sleeve; 507. Drive pulley; 508. Rotating shaft; 509. Belt; 510. Driven pulley; 511. Lead screw nut; 512. Moving ring; 513. Gate; 514. Hydraulic cylinder; 515. Folding plate; 601. Outer shell; 602. Second inner shell; 603. Third motor; 604. Booster pump; 605. First temperature sensor; 606. First flow sensor; 607. First control valve; 608. First pipe; 609. Heat sink; 610. Cooling water tank; 611. Connecting pipe; 612. Discharge pipe; 613. Second pipe; 614. Second flow sensor; 615. Second control valve; 616. Second temperature sensor; 617. Second conveying screw shaft. Detailed Implementation
[0024] To enable those skilled in the art to better understand the technical solution, the present invention will be described in detail below with reference to embodiments. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.
[0025] like Figures 1-5 As shown, the specific solution of this embodiment is as follows: an ultra-high temperature bolt-type continuous production furnace, including a preheating section 2, a high temperature section 4, and a slow cooling section 6 arranged sequentially from top to bottom. A feeding section 1 is provided on the preheating section 2. The lower side of the preheating section 2 away from the feeding section 1 is connected to the high temperature section 4 through a first connecting section 3. The lower side of the high temperature section 4 away from the first connecting section 3 is connected to the slow cooling section 6 through a second connecting section 5.
[0026] like Figure 1 As shown, an ultra-high temperature bolt-type continuous production furnace includes a preheating section 2 comprising a first spiral conveying shaft 202 and a first inner shell 203. The first spiral conveying shaft 202 is a spiral rod-shaped structure made of graphite, carbon-carbon, or ceramic materials, used for conveying materials while preventing corrosion. The first inner shell 203 is a hollow tubular structure made of graphite, carbon-carbon, or ceramic materials, also preventing corrosion. One end of the first spiral conveying shaft 202 is connected to the output shaft of a first motor 201. A heating module 204 is disposed below the first inner shell 203. The heating element of the heating module 204 is typically a high-temperature heating element such as a silicon carbide rod or a silicon molybdenum rod, which has high resistance. With high efficiency and good high-temperature stability, it can withstand ultra-high temperature environments and generate a large amount of heat, such as silicon molybdenum rods. To reduce heat loss and improve heating efficiency, a multi-layer insulation structure is used around the heating module 204, such as high-purity alumina fiber blankets, which have low thermal conductivity and low heat capacity, and can effectively block heat transfer to the outside of the furnace. Mullite fiber boards can further enhance the insulation effect. High-temperature ceramic screws and anchor screws are used to fix the heating elements and insulation materials in the furnace body. These screws can withstand high temperatures and are not easily deformed or damaged, ensuring that the heating elements and insulation materials maintain a stable position and structure at high temperatures. The material is heated to 400-1000℃ in the preheating section 2.
[0027] The heating element utilizes its resistivity to generate Joule heat after being energized, raising its own temperature. This heat is then transferred to the material or workpiece inside the furnace through thermal radiation and conduction, achieving the heating purpose. High-temperature thermocouples, such as tungsten-rhenium thermocouples, are inserted into specific positions inside the furnace to measure the furnace temperature in real time and convert the temperature signal into an electrical signal, which is then transmitted to the temperature controller. The feeding section 1 is used for material to enter the preheating section 2, and the feeding section 1 has a bucket-shaped structure that is larger at the top and smaller at the bottom.
[0028] Preferably, the high-temperature section 4 has the same structure as the preheating section 2, and the high-temperature section 4 heats the material to 900-3000°C. The structure of the first connecting section 3 is the same as the structure of the second connecting section 5.
[0029] Preferably, the second connecting part 5 includes a guide cylinder 502, an insulation sleeve 501 is provided on the outside of the guide cylinder 502, and a movable ring 512 is movably provided inside the guide cylinder 502, which can reciprocate linearly along the inner wall of the guide cylinder 502. The upper part of the movable ring 512 has an arc structure, and the lower part has an inclined angle.
[0030] Preferably, the movable ring 512 is connected to the lead screw nut 511 via a connecting plate. The lead screw nut 511 is matched with the lead screw 503. A folding plate 515 is provided at the gap through which the connecting plate passes. The folding plate 515 serves as an isolation function. The folding plate 515 can be placed below the connecting plate, or the gap through which the connecting plate passes can be filled as needed. The second motor 505 is driven, and the rotating shaft 508 and the lead screw 503 both rotate. The lead screw nut 511 moves linearly in the vertical direction, and the movable ring 512 moves up and down in the vertical direction, scraping the material off the inner wall of the guide cylinder 502 to prevent the material from sticking to the guide cylinder 502. On the inner wall of 02, the technical problem of material corrosion on the guide cylinder 502 is solved, and the blockage of material in the guide cylinder 502 is also avoided, so as to realize the continuous material conveying production requirements. A gate 513 is installed in the guide cylinder 502. The gate 513 is connected to the telescopic shaft end of the hydraulic cylinder 514. The hydraulic cylinder 514 is driven and the gate 513 controls the opening and closing of the guide cylinder 502. When it is necessary to clean the material adhering to the inner wall of the guide cylinder 502, the hydraulic cylinder 514 is driven and the gate 513 blocks the connection of the guide cylinder 502, so that the movable ring 512 can better complete the unblocking and anti-corrosion operation of the guide cylinder 502.
[0031] Preferably, the driven pulley 510 on the lead screw 503 is connected to the driving pulley 507 on the rotating shaft 508 via the belt 509, and the rotating shaft 508 is connected to the output shaft end of the second motor 505.
[0032] Preferably, the guide sleeve 506 provided on the side of the lead screw nut 511 is matched with the guide rod 504.
[0033] Preferably, the slow cooling section 6 includes an outer shell 601, a second inner shell 602 is disposed inside the outer shell 601, a second conveying screw shaft 617 disposed inside the second inner shell 602 is connected to the output shaft end of the third motor 603, a plurality of cooling water tanks 610 are disposed outside the second inner shell 602, the cooling water tanks 610 are hollow box structures, and are filled with coolant, and adjacent cooling water tanks 610 are connected by connecting pipes 611, and a discharge pipe 612 disposed on the side of the second inner shell 602 extends downward out of the outer shell 601.
[0034] Preferably, multiple heat sinks 609 are spaced apart on the outside of the second inner shell 602. A first pipe 608 is provided at the bottom of the cooling water tank 610 near the third motor 603, extending out of the outer shell 601 and connecting to the output end of the booster pump 604. The input end of the booster pump 604 is connected to a cooling water source. A first control valve 607, a first flow sensor 606, and a first temperature sensor 605 are sequentially provided on the first pipe 608. A second pipe 613 is provided at the bottom of the cooling water tank 610 near the discharge pipe 612. A second flow sensor 614, a second control valve 615, and a second temperature sensor 616 are provided on the second pipe 613. Cooling water enters the cooling water tank 610 from the first pipe 608, absorbs heat from the second inner shell 602 through heat transfer, and recovers the coolant after heat absorption. The booster pump 604 provides pressure to the coolant to ensure that the coolant can flow out from the second pipe 613.
[0035] The specific working principle of this invention is as follows: The feeding section 1 has a bucket-shaped structure that is wider at the top and narrower at the bottom. The material enters the preheating section 2 from the feeding section 1. The first spiral conveyor shaft 202 of the preheating section 2 is made of graphite, carbon-carbon, or ceramic materials, which have the characteristics of high temperature resistance and corrosion resistance. It can convey the material downward along the first inner shell 203. The heating module 204 (such as silicon carbide rod, silicon molybdenum rod, etc.) below the first inner shell 203 generates Joule heat when energized, and its own temperature rises. It transfers heat to the material in the furnace through thermal radiation and thermal conduction, so that the material is heated to 400-1000℃ in the preheating section 2. At the same time, a multi-layer heat preservation structure (such as high-purity alumina fiber blanket, mullite fiber board, etc.) is set around the heating module 204 to reduce heat loss and improve heating efficiency. A high-temperature thermocouple is inserted into a specific position in the furnace to measure the furnace temperature in real time and convert the temperature signal into an electrical signal and transmit it to the temperature controller to achieve precise control of the temperature of the preheating section 2.
[0036] The preheated material enters the high-temperature section 4 through the first connecting part 3. The structure of the high-temperature section 4 is the same as that of the preheating part 2. Its heating module 204 further heats the material to 900-3000℃, so that the material reaches the required high-temperature treatment temperature and carries out the corresponding process, such as sintering and calcination.
[0037] After high-temperature treatment, the material enters the slow cooling section 6 through the second connecting part 5. Multiple cooling water tanks 610 are installed outside the second inner shell 602 of the slow cooling section 6. Each cooling water tank 610 contains coolant, and adjacent cooling water tanks 610 are connected by connecting pipes 611. A discharge pipe 612 located on the side of the second inner shell 602 extends downwards from the outer shell 601. A booster pump 604 pressurizes coolant from an external cooling water source into the cooling water tanks 610 through the first pipe 608. The coolant absorbs heat from the second inner shell 602 through heat transfer, cooling the material. Temperature sensors, flow sensors, and control valves monitor the temperature and flow rate of the coolant in real time and precisely control its flow to ensure uniform and stable cooling of the material. The cooled material is discharged from the discharge pipe 612.
[0038] The installation and connection of the preheating section 2 begins with installing the first inner shell 203 of the preheating section 2 in the corresponding position on the furnace body, securing it with high-temperature ceramic screws, anchor screws, etc. Then, the first spiral conveyor shaft 202 is installed inside the first inner shell 203, ensuring it can rotate normally and convey materials. A heating module 204, such as a silicon carbide rod or silicon molybdenum rod, is installed below the first inner shell 203, and a multi-layer insulation structure, including high-purity alumina fiber blankets and mullite fiber boards, is arranged around it. A high-temperature thermocouple is inserted into a suitable position inside the furnace and connected to the temperature controller. The feeding section 1 is installed above the preheating section 2, ensuring that materials can smoothly enter the preheating section 2.
[0039] Installation and connection of the high-temperature section 4: The installation method of the high-temperature section 4 is the same as that of the preheating section 2. The inner shell and the screw conveyor shaft of the high-temperature section 4 are installed in the corresponding positions of the furnace body, and the heating module 204 and the insulation structure are installed. At the same time, the high-temperature thermocouple and the temperature controller are connected. The preheating section 2 and the high-temperature section 4 are connected through the first connecting part 3 to ensure that the material can smoothly enter the high-temperature section 4 from the preheating section 2.
[0040] The installation and debugging of the second connecting part 5: The guide cylinder 502 of the second connecting part 5 is installed between the high-temperature part 4 and the slow-cooling part 6, and the heat insulation sleeve 501 is wrapped around the outside of the guide cylinder 502. The movable ring 512 is installed inside the guide cylinder 502 and is connected to the lead screw nut 511 through the connecting plate. The lead screw nut 511 is matched with the lead screw 503. The folding plate 515 is installed at the gap position through which the connecting plate passes, and plays an isolation role. The driven pulley 510 on the lead screw 503 is connected to the driving pulley 507 on the rotating shaft 508 through the belt 509. The rotating shaft 508 is connected to the output shaft end of the second motor 505. The guide sleeve 506 on the side of the lead screw nut 511 is matched with the guide rod 504. The second motor 505 is driven to rotate the shaft 508 and the lead screw 503. The lead screw nut 511 moves linearly in the vertical direction, which drives the movable ring 512 to reciprocate linearly on the inner wall of the guide cylinder 502, thus preventing the material from sticking to the inner wall of the guide cylinder 502.
[0041] The slow cooling section 6 is installed and connected as follows: the outer shell 601 of the slow cooling section 6 is installed at the bottom of the furnace body, and the second inner shell 602 is installed inside the outer shell 601. Multiple cooling water tanks 610 are provided outside the second inner shell 602, and adjacent cooling water tanks 610 are connected by connecting pipes 611. A discharge pipe 612 provided on the side of the second inner shell 602 extends downwards from the outer shell 601. Multiple heat sinks 609 are provided outside the cooling water tanks 610. A first pipe 608 provided at the bottom of the cooling water tank 610 near the third motor 603 extends out of the outer shell 601 and connects to the output end of the booster pump 604. The input end of the booster pump 604 is connected to an external cooling water source.
[0042] The role of each structural design: Preheating section 2: The first spiral conveyor shaft 202 is made of high-temperature and corrosion-resistant materials. It can convey materials downward in the preheating section 2 and at the same time, make the materials fully contact the heating elements during the conveying process to achieve uniform preheating.
[0043] The first inner shell 203 provides a relatively enclosed preheating space for the material, while also withstanding a certain high-temperature environment. Its high-temperature resistance and corrosion resistance ensure the stable operation of the preheating section 2.
[0044] Heating module 204 (silicon carbide rod, silicon molybdenum rod, etc.): As the main heating element, it generates a large amount of heat after being powered on, and transfers the heat to the material through thermal radiation and thermal conduction, raising the material temperature to the set preheating temperature range.
[0045] Insulation structure (high-purity alumina fiber blanket, mullite fiber board, etc.): effectively reduces the heat loss from the heating module 204 to the outside of the furnace, improves heating efficiency, and reduces energy consumption.
[0046] High-temperature ceramic screws and anchor screws: used to fix heating elements and insulation materials. They can remain stable in high-temperature environments, are not easily deformed or damaged, and ensure the fixed position and structure of heating elements and insulation materials.
[0047] Feeding section 1 (bucket-shaped structure with a larger top and a smaller bottom): facilitates the feeding of materials and allows the materials to enter the preheating section 2 evenly.
[0048] High temperature part 4: The structure is the same as that of the preheating section 2: it can heat the material to a higher temperature (900-3000℃) to meet the process requirements of the material at high temperature, such as sintering and calcination. Its internal heating elements and insulation structure are designed similarly to those of the preheating section 2, which ensures the stable operation and efficient heating of the high temperature section 4.
[0049] First connecting part 3: The structure is the same as the second connecting part 5: It mainly serves to connect the preheating part 2 and the high temperature part 4, so that the material can be smoothly transported between the two parts.
[0050] Material guide cylinder 502: It serves as a channel for conveying materials from the high-temperature section 4 to the slow-cooling section 6. It is equipped with an insulation sleeve 501 to reduce heat loss of materials during the conveying process.
[0051] The movable ring 512 is connected to the lead screw nut 511 via a connecting plate. The lead screw nut 511 matches the lead screw 503. When the lead screw 503 rotates, it drives the lead screw nut 511 to move up and down, thereby causing the movable ring 512 to reciprocate linearly within the inner wall of the guide cylinder 502. The upper part of the movable ring 512 has an arc-shaped structure, and the lower part has an inclined angle. This design can effectively scrape off the material adhering to the inner wall of the guide cylinder 502, preventing material adhesion and blockage, avoiding corrosion of the guide cylinder 502 by the material, and achieving continuous and stable material conveying.
[0052] Folding plate 515: Installed at the gap through which the connecting plate passes, it serves as an isolation device to prevent material leakage from the gap. At the same time, the position of the folding plate 515 can be adjusted or the gap of the connecting plate can be filled according to actual needs to adapt to different material conveying conditions.
[0053] Lead screw 503, lead screw nut 511, guide sleeve 506, guide rod 504: The rotation of lead screw 503 causes lead screw nut 511 to move linearly in the vertical direction through thread transmission. Guide sleeve 506 is matched with guide rod 504 to guide and stabilize the movement of lead screw nut 511, ensuring that movable ring 512 can accurately reciprocate linearly along the inner wall of guide cylinder 502.
[0054] The second motor 505 drives the rotation of the shaft 508 and the lead screw 503, which in turn drives the lead screw nut 511 and the movable ring 512 to move, thereby realizing the continuous conveying of materials in the guide cylinder 502.
[0055] Outer shell 601: As the outer protective structure of the slow cooling section 6, it provides a relatively enclosed space for the internal cooling system and materials, and also plays a certain role in heat insulation, reducing the influence of the external environment on the internal temperature of the slow cooling section 6.
[0056] The second inner shell 602 contains materials and is equipped with a cooling water tank 610 on its exterior. The materials inside the second inner shell 602 are cooled by the coolant in the cooling water tank 610.
[0057] The third motor 603 provides power to the stirring device (617 in the figure) in the slow cooling section 6, causing the stirring device to rotate, stirring the material, promoting heat transfer between the material and the coolant, and improving the uniformity and efficiency of material cooling.
[0058] Cooling water tank 610: It has a hollow tank structure and is filled with coolant. It absorbs the heat of the material through heat transfer between the coolant and the second inner shell 602, thereby cooling the material.
[0059] Heat sink 609: Installed on the outside of the coolant tank 610, it increases the heat dissipation area of the coolant tank 610, which helps to dissipate the heat absorbed by the coolant to the surrounding environment more quickly and improve the cooling effect.
[0060] Booster pump 604: Provides pressure for the circulation of coolant, ensuring that coolant can flow out from the second pipe 613 and enter the cooling water tank 610, forming a circulation flow of coolant and ensuring the normal operation of the cooling system.
[0061] First pipe 608 and second pipe 613: Serving as coolant delivery channels, first pipe 608 introduces coolant from an external cooling water source into the cooling water tank 610, and second pipe 613 discharges the coolant after heat absorption, thus realizing the recycling of coolant.
[0062] Sensors (first temperature sensor 605, first flow sensor 606, second temperature sensor 616, second flow sensor 614): monitor the temperature, flow rate and other parameters of the coolant in real time, and transmit the signals to the control system so as to accurately control the circulation flow rate and temperature of the coolant and ensure the quality of material cooling.
[0063] The control valves (first control valve 607 and second control valve 615) receive control signals from the central processing unit, adjust the flow rate of coolant in the pipeline, and control the circulation speed of coolant, thereby achieving precise control of the cooling process.
[0064] Discharge pipe 612: Discharges the cooled material from the slow cooling section 6, completing the entire production process.
[0065] It should be noted that, in this document, the terms "including," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Specific examples have been used in this document to illustrate the principles and implementation methods of the present invention. These examples are merely for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be pointed out that, due to the limitations of written expression and the objective existence of infinite specific structures, those skilled in the art can make several improvements, modifications, or variations without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, variations, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.
Claims
1. A high-temperature bolt-type continuous production furnace, characterized in that, It includes a preheating section (2), a high temperature section (4), and a slow cooling section (6) arranged sequentially from top to bottom. A feeding section (1) is provided on the preheating section (2). The side of the preheating section (2) away from the feeding section (1) is connected to the high temperature section (4) through a first connecting section (3). The side of the high temperature section (4) away from the first connecting section (3) is connected to the slow cooling section (6) through a second connecting section (5).
2. The ultra-high temperature bolt-type continuous production furnace according to claim 1, characterized in that, The preheating section (2) includes a first spiral conveying shaft (202) and a first inner shell (203). The first spiral conveying shaft (202) is a spiral rod structure made of graphite, carbon, or ceramic materials. The first inner shell (203) is a hollow tubular structure made of graphite, carbon, or ceramic materials. A heating module (204) is provided below the first inner shell (203).
3. The ultra-high temperature bolt-type continuous production furnace according to claim 1, characterized in that, The high-temperature section (4) has the same structure as the preheating section (2). The high-temperature section (4) heats the material to 900-3000℃. The structure of the first connecting section (3) is the same as the structure of the second connecting section (5).
4. The ultra-high temperature bolt-type continuous production furnace according to claim 1, characterized in that, The second connecting part (5) includes a guide cylinder (502), an insulation sleeve (501) is provided outside the guide cylinder (502), and a movable ring (512) is movably provided inside the guide cylinder (502) to reciprocate linearly along the inner wall of the guide cylinder (502). The upper part of the movable ring (512) is in the shape of an arc, and the lower part is provided with an inclination angle.
5. The ultra-high temperature bolt-type continuous production furnace according to claim 4, characterized in that, The movable ring (512) is connected to the lead screw nut (511) through the connecting plate. The lead screw nut (511) is matched with the lead screw (503). A folding plate (515) is provided at the gap position through which the connecting plate passes. The folding plate (515) plays an isolation role. A gate plate (513) is provided in the guide cylinder (502). The gate plate (513) is connected to the telescopic shaft end of the oil cylinder (514).
6. The ultra-high temperature bolt-type continuous production furnace according to claim 5, characterized in that, The driven pulley (510) on the lead screw (503) is connected to the driving pulley (507) on the rotating shaft (508) via a belt (509), and the rotating shaft (508) is connected to the output shaft end of the second motor (505).
7. The ultra-high temperature bolt-type continuous production furnace according to claim 6, characterized in that, The guide sleeve (506) provided on the side of the lead screw nut (511) is matched with the guide rod (504).
8. A high-temperature bolt-type continuous production furnace according to claim 1, characterized in that, The slow cooling section (6) includes an outer shell (601), a second inner shell (602) is provided inside the outer shell (601), a second conveying screw shaft (617) provided inside the second inner shell (602) is connected to the output shaft end of a third motor (603), a plurality of cooling water tanks (610) are provided outside the second inner shell (602), adjacent cooling water tanks (610) are connected by connecting pipes (611), and a discharge pipe (612) provided on the side of the second inner shell (602) extends downward out of the outer shell (601).
9. A high-temperature bolt-type continuous production furnace according to claim 8, characterized in that, Multiple heat sinks (609) are arranged at intervals on the outside of the second inner shell (602). A first pipe (608) is arranged at the bottom of the cooling water tank (610) near the third motor (603), which extends out of the outer shell (601) and connects to the output end of the booster pump (604). The input end of the booster pump (604) is connected to a cooling water source. A first control valve (607), a first flow sensor (606), and a first temperature sensor (605) are arranged sequentially on the first pipe (608). A second pipe (613) is arranged at the bottom of the cooling water tank (610) near the discharge pipe (612). A second flow sensor (614), a second control valve (615), and a second temperature sensor (616) are arranged on the second pipe (613).