Die heating furnace with waste heat recovery device
By introducing a blower, filter screen, activated carbon mesh plate and water circulation system into the mold heating furnace, the problem of unused waste heat was solved, achieving efficient waste heat recovery and utilization, improving the utilization rate of flue gas heat and saving energy.
Patent Information
- Application Number
- CN202422290641.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-09-20
AI Technical Summary
The waste heat generated during the heating process of existing mold heating furnaces is not effectively utilized, resulting in resource waste, and traditional waste heat recovery devices cannot efficiently absorb the heat from the flue gas.
Design a mold heating furnace with a waste heat recovery device, including a blower, a filter screen, an activated carbon mesh plate, a water circulation system and a generator set. The blower transports high-temperature flue gas to the waste heat recovery box. After purification by the filter screen and activated carbon mesh plate, the heat is used to heat water and generate steam to drive power generation. The serpentine heating tube increases the heat exchange efficiency and is kept warm by the insulation plate.
This improved the utilization rate of flue gas heat, reduced energy waste, achieved efficient recovery and utilization of waste heat, and saved energy consumption.
Smart Images
Figure CN223663768U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mold heating furnace technology, specifically to a mold heating furnace with a waste heat recovery device. Background Technology
[0002] Aluminum processing uses plastic forming methods to process aluminum billets into finished products. The main methods include rolling, extrusion, stretching, and forging. Generally, molds are used when extruding aluminum profiles. The temperature is high during aluminum profile extrusion. In order to avoid a large temperature difference between the aluminum profile and the mold, which would affect the quality, the mold needs to be preheated in a heating furnace before processing.
[0003] During the use of a mold heating furnace, the heat emitted when heating the mold cannot be utilized, resulting in a waste of resources. At this time, a waste heat recovery device is needed to reuse the waste heat of the mold heating furnace. A waste heat recovery device is a device that recovers and reuses the waste heat generated in industrial processes. It can adapt to the changing production process requirements and effectively recover waste heat. However, general waste heat recovery devices cannot effectively absorb the heat in the production flue gas during operation. The heat transfer rate of the flue gas is not high, and the recovered heat cannot be effectively utilized. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a mold heating furnace with a waste heat recovery device, which solves the problems raised in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A mold heating furnace with a waste heat recovery device includes a base, a transmission device, and a water circulation device. A fixed base is provided at the top of the base, and a heating furnace body is provided at the top of the fixed base. A control panel is provided on the front of the heating furnace body. A waste heat recovery box is provided at the top of the base and on one side of the heating furnace body. An exhaust fan is provided at the top of the waste heat recovery box. An exhaust pipe is installed at the input end of the exhaust fan, and the other end of the exhaust pipe passes through the heating furnace body. An exhaust pipe is installed at the output end of the exhaust fan, and the other end of the exhaust pipe passes through the waste heat recovery box. A filter screen and an activated carbon screen are respectively arranged from top to bottom inside the waste heat recovery box. A steam pipe is installed through one side of the lower end of the waste heat recovery box, and a second solenoid valve is provided on the steam pipe. A generator set is provided at the other end of the steam pipe. A support plate is provided at the lower front end of the waste heat recovery box, and a water circulation device is provided at the top of the support plate.
[0007] Preferably, a transmission device is provided at the top of the base and on the other side of the fixed seat. The transmission device includes a transmission box, and a drive motor is provided at the top of the transmission box. A rotating rod is installed at the output end of the drive motor. A main bevel gear is provided at the other end of the rotating rod. The main bevel gear is meshed with a driven bevel gear. A threaded rod is provided between the driven bevel gear and the fixed seat. A moving block is threadedly connected to the threaded rod. A furnace door is provided at the top of the moving block. A slider is provided at the bottom of the moving block. A slide rail is provided at the top of the base. The slider and the slide rail are slidably connected. A sealing ring is provided on the other side of the heating furnace body. Several mold placement platforms are provided on one side of the furnace door. A sealing groove is provided on one side of the furnace door. The sealing groove and the sealing ring are engaged and connected. The control panel and the drive motor are electrically connected.
[0008] Preferably, the water circulation device includes a water storage tank, a top cover at the top of the water storage tank, a handle at the top of the top cover, a circulating water pump at one side of the middle of the waste heat recovery tank, an inlet pipe at the input end of the circulating water pump, a heating pipe at the output end of the circulating water pump, the heating pipe being located inside the waste heat recovery tank and arranged in a serpentine pattern, the other end of the heating pipe penetrating through the side wall of the waste heat recovery tank and connected to the water storage tank, a drain pipe being connected to one side of the lower end of the water storage tank, and a first solenoid valve being installed on the drain pipe, and the control panel, the circulating water pump, and the first solenoid valve being electrically connected.
[0009] Preferably, the top, bottom and left wall of the heating furnace body are provided with a plurality of infrared heating plates, and the control panel and the infrared heating plates are electrically connected.
[0010] Preferably, both the filter screen and the activated carbon screen are fixedly installed with a fixing plate on one side of the waste heat recovery box, and a pull plate is provided at the top of the fixing plate.
[0011] Preferably, the waste heat recovery box is equipped with insulation boards on the upper and lower sides and the left and right sides inside.
[0012] Preferably, the top of the mold placement platform has several grooves to facilitate the clamping and placement of the mold.
[0013] Preferably, the control panel, the exhaust fan, and the second solenoid valve are all electrically connected.
[0014] Compared with the prior art, the beneficial effects achieved by this utility model are:
[0015] The mold heating furnace with waste heat recovery device provided by this utility model works by starting an exhaust fan, which transports the high-temperature flue gas generated inside the heating furnace to the exhaust pipe through the exhaust pipe. The high-temperature flue gas then enters the waste heat recovery tank through the exhaust pipe. After being filtered and purified by a filter screen and activated carbon mesh, the high-temperature flue gas comes into contact with the heating tubes. Simultaneously, a circulating water pump is started, which transports water from the storage tank to the heating tubes through the inlet pipe. The high-temperature flue gas heats the cold water inside the heating tubes, and the heated cold water flows back to the storage tank, thus heating the water inside the storage tank. Hot water in the tank can be drained through the drain pipe, thus avoiding heat waste and greatly improving the utilization rate of flue gas heat. When high-temperature flue gas comes into contact with cold water in the heating tube, steam is generated. When the second solenoid valve is opened, the steam flows through the steam pipe into the generator set to drive the generator, thus making full use of the flue gas heat and further improving the utilization rate of flue gas heat. By setting the heating tube to a serpentine shape, the flow path of cold water inside the heating tube is greatly increased, so that the cold water inside the heating tube can fully absorb heat, thereby improving the utilization rate of flue gas heat.
[0016] This utility model is equipped with a filter screen and an activated carbon mesh plate. The filter screen can effectively filter suspended solids and particles in high-temperature flue gas, and the activated carbon mesh plate can adsorb and purify harmful substances in high-temperature flue gas. By setting up a pull plate and a fixing plate, the pull plate can drive the filter screen or activated carbon mesh plate to be pulled out for cleaning or replacement, avoiding clogging and affecting the filtration effect.
[0017] This utility model has insulation boards installed on the upper and lower sides and the left and right sides inside the waste heat recovery box. The insulation boards can better keep the heat inside the waste heat recovery box warm and prevent heat loss.
[0018] This utility model is equipped with infrared heating plates. Through the cooperation of sealing grooves and sealing rings, the heating furnace body forms a sealed space. By setting several infrared heating plates at the top, bottom and left wall inside the heating furnace body, the mold can be heated evenly. The infrared heating plates are activated by the control panel, and the power of the infrared heating plates is adjusted according to the internal temperature of the heating furnace body, so that the internal temperature of the heating furnace body is always kept at a suitable temperature, which greatly saves energy. Attached Figure Description
[0019] Figure 1 This is the front view of the present invention.
[0020] Figure 2 This is a schematic diagram of the internal structure of this utility model.
[0021] Figure 3 for Figure 2 Enlarged view of the local structure at point A.
[0022] In the diagram: 1. Base; 2. Heating furnace body; 3. Control panel; 4. Fixing base; 5. Transmission device; 5.1. Transmission box; 5.2. Drive motor; 5.3. Rotating rod; 5.4. Main bevel gear; 5.5. Driven bevel gear; 5.6. Threaded rod; 5.7. Moving block; 6. Furnace door; 7. Sliding block; 8. Slide rail; 9. Mold placement platform; 10. Sealing groove; 11. Sealing ring; 12. Infrared heating plate; 13. Exhaust fan; 14. Exhaust pipe; 15. Exhaust outlet. 16. Waste heat recovery box; 17. Support plate; 18. Water circulation device; 18.1. Water storage tank; 18.2. Top cover; 18.3. Handle; 18.4. Circulating water pump; 18.5. Water inlet pipe; 18.6. Heating pipe; 18.7. Drain pipe; 18.8. First solenoid valve; 19. Pull plate; 20. Fixing plate; 21. Filter screen plate; 22. Activated carbon screen plate; 23. Steam pipe; 24. Second solenoid valve; 25. Generator set; 26. Insulation board. Detailed Implementation
[0023] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.
[0024] According to an embodiment of the present invention, a mold heating furnace with a waste heat recovery device is provided.
[0025] Example 1:
[0026] As shown in the attached diagram of the instruction manual. Figure 1As shown, a mold heating furnace with a waste heat recovery device includes a base 1, a transmission device 5, and a water circulation device 18. A fixing seat 4 is provided at the top of the base 1, and a heating furnace body 2 is provided at the top of the fixing seat 4. A control panel 3 is provided on the front of the heating furnace body 2. A waste heat recovery box 16 is provided at the top of the base 1 and on one side of the heating furnace body 2. An exhaust fan 13 is provided at the top of the waste heat recovery box 16. An exhaust pipe 14 is installed at the input end of the exhaust fan 13, and the other end of the exhaust pipe 14 passes through the heating furnace body 2. The exhaust fan 13 is equipped with an exhaust pipe 15 at its output end. A waste heat recovery box 16 is installed through the other end of the exhaust pipe 15. A filter screen 21 and an activated carbon screen 22 are respectively arranged inside the waste heat recovery box 16 from top to bottom. A steam pipe 23 is installed through one side of the lower end of the waste heat recovery box 16. A second solenoid valve 24 is installed on the steam pipe 23. A generator set 25 is installed at the other end of the steam pipe 23. A support plate 17 is installed at the lower front end of the waste heat recovery box 16. A water circulation device 18 is installed at the top of the support plate 17.
[0027] The heating tube 18.6 is arranged in a serpentine shape. By making the heating tube 18.6 serpentine, the flow path of cold water inside the heating tube 18.6 is greatly increased, so that the cold water inside the heating tube 18.6 can fully absorb heat, thereby improving the utilization rate of flue gas heat.
[0028] The waste heat recovery box 16 is equipped with insulation boards 26 on the upper and lower sides and the left and right sides inside. The insulation boards 26 can better keep the heat inside the waste heat recovery box 16 warm and prevent heat loss.
[0029] Example 2:
[0030] As shown in the attached diagram of the instruction manual. Figure 1 , Figure 2 and Figure 3As shown, a mold heating furnace with a waste heat recovery device is used by first placing the molds in sequence in the grooves on the mold placement platform 9. Then, the drive motor 5.2 is started via the control panel 3. The drive motor 5.2 drives the rotating rod 5.3 to rotate, which in turn drives the main bevel gear 5.4 to rotate. The main bevel gear 5.4 drives the driven bevel gear 5.5 to rotate, which in turn drives the threaded rod 5.6 to rotate. Simultaneously, the rotation of the threaded rod 5.6 causes the moving block 5.7 to move to the left, which in turn causes the slider 7 to move to the left. The mold moves along the slide rail 8, allowing the mold placement platform 9 to enter the heating furnace body 2. At this time, the sealing ring 11 and the sealing groove 10 cooperate to form a sealed space in the heating furnace body 2. By setting several infrared heating plates 12 at the top, bottom, and left wall inside the heating furnace body 2, the mold can be heated evenly. The infrared heating plates 12 are activated through the control panel 3, and the power of the infrared heating plates 12 is adjusted according to the internal temperature of the heating furnace body 2, so that the inside of the heating furnace body 2 is always at a suitable temperature, which greatly saves energy. The exhaust fan 13 is activated via control panel 3. The exhaust fan 13, through exhaust pipe 14, transports the high-temperature flue gas generated inside the heating furnace 2 to the exhaust pipe 15. The high-temperature flue gas then enters the waste heat recovery box 16 through the exhaust pipe 15. After being filtered and purified by filter screen 21 and activated carbon mesh plate 22, the high-temperature flue gas comes into contact with the heating tube 18.6. Simultaneously, the circulating water pump 18.4 is activated via control panel 3. The circulating water pump 18.4 transports water from the water storage tank 18.1 to the heating tubes 18.6 through inlet pipe 18.5. The high-temperature flue gas heats the cold water inside the heating tubes 18.6. The water flows back to the water storage tank 18.1, heating the water inside. The hot water in the water storage tank 18.1 can be discharged through the drain pipe 18.7 by opening the first solenoid valve 18.8 via the control panel 3, thus avoiding heat waste and significantly improving the utilization rate of flue gas heat. When the high-temperature flue gas comes into contact with the cold water in the heating pipe 18.6, steam is generated. By opening the second solenoid valve 24 via the control panel 3, the steam will flow through the steam pipe 23 into the generator set 25 to drive the generator, thereby making full use of the flue gas heat and further improving the utilization rate of flue gas heat.
[0031] This utility model is equipped with a filter screen 32 and an activated carbon mesh plate 22. The filter screen 21 can effectively filter suspended solids and particles in high-temperature flue gas, and the activated carbon mesh plate 22 can adsorb and purify harmful substances in high-temperature flue gas. By providing a pull plate 19 and a fixing plate 20, the pull plate 19 can drive the filter screen 21 or the activated carbon mesh plate 22 to be pulled out for cleaning or replacement, avoiding clogging and affecting the filtration effect.
[0032] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.
[0033] In this utility model, unless otherwise explicitly specified and limited, for example, it can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components or an interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," 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 process, method, article, or apparatus.
[0035] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A mold heating furnace having a waste heat recovery device, characterized by: The utility model provides a heat recovery and utilization device of heating furnace, including base (1), transmission (5), water circulation device (18), the top of base (1) is provided with fixed seat (4), the top of fixed seat (4) is provided with heating furnace body (2), the front of heating furnace body (2) is provided with control panel (3), the top of base (1) and located heating furnace body (2) one side is provided with waste heat recovery tank (16), the top of waste heat recovery tank (16) is provided with exhaust fan (13), the input of exhaust fan (13) is installed with exhaust pipe (14), the other end of exhaust pipe (14) is installed with heating furnace body (2) through, the output of exhaust fan (13) is installed with air outlet pipe (15), the other end of air outlet pipe (15) is installed with waste heat recovery tank (16) through, the inside of waste heat recovery tank (16) is provided with filter screen board (21) and activated carbon screen board (22) respectively from top to bottom, the lower end one side of waste heat recovery tank (16) is installed with steam pipe (23) through, be provided with second electromagnetic valve (24) on steam pipe (23), the other end of steam pipe (23) is provided with generator set (25), the front lower end of waste heat recovery tank (16) is provided with support plate (17), the top of support plate (17) is provided with water circulation device (18).
2. A die heating furnace with waste heat recovery device according to claim 1, characterized in that: The top of base (1) and located the other side of fixed seat (4) is provided with transmission (5), transmission (5) includes transmission box (5.1), the inside top of transmission box (5.1) is provided with drive motor (5.2), the output of drive motor (5.2) is installed with rotating rod (5.3), the other end of rotating rod (5.3) is provided with main bevel gear (5.4), is connected with driven bevel gear (5.5) with the meshing of main bevel gear (5.4), be provided with threaded rod (5.6) between driven bevel gear (5.5) and fixed seat (4), threaded rod (5.6) is connected with moving block (5.7) with the screwing, the top of moving block (5.7) is provided with furnace door (6), the bottom of moving block (5.7) is provided with sliding block (7), the top of base (1) is provided with slide rail (8), sliding block (7) and slide rail (8) are connected, the other side of heating furnace body (2) is provided with sealing ring (11), one side of furnace door (6) is provided with a plurality of mould placing table (9), one side of furnace door (6) is provided with sealing groove (10), sealing groove (10) and sealing ring (11) are connected, control panel (3) and drive motor (5.2) are electrically connected.
3. The die heating furnace with waste heat recovery device according to claim 1, characterized in that: The water circulating device (18) comprises a water storage tank (18.1), the top end of the water storage tank (18.1) is provided with a top cover (18.2), the top end of the top cover (18.2) is provided with a handle (18.3), one side of the middle end of the waste heat recovery tank (16) is provided with a circulating water pump (18.4), the input end of the circulating water pump (18.4) is provided with a water inlet pipe (18.5), the output end of the circulating water pump (18.4) is provided with a heating pipe (18.6), the heating pipe (18.6) is located in the waste heat recovery tank (16), the heating pipe (18.6) is arranged in a serpentine shape, the other end of the heating pipe (18.6) penetrating through the side wall of the waste heat recovery tank (16) is provided with a water storage tank (18.1), one side of the lower end of the water storage tank (18.1) is provided with a drain pipe (18.7), the drain pipe (18.7) is provided with a first electromagnetic valve (18.8), and the control panel (3) and the circulating water pump (18.4), the first electromagnetic valve (18.8) are electrically connected.
4. The die heating furnace with waste heat recovery device according to claim 1, characterized in that: The inside top end, bottom end and left wall of the heating furnace body (2) are provided with a plurality of infrared heating plates (12), and the control panel (3) and the infrared heating plates (12) are electrically connected.
5. The die heating furnace with waste heat recovery device according to claim 1, characterized in that: The filter screen plate (21) and the activated carbon screen plate (22) are fixedly installed with a fixed plate (20) penetrating through one side of the waste heat recovery tank (16), and the top end of the fixed plate (20) is provided with a pull plate (19).
6. The die heating furnace with waste heat recovery device according to claim 1, characterized in that: The inside top and bottom sides and left and right sides of the waste heat recovery tank (16) are provided with heat preservation plates (26).
7. The die heating furnace with waste heat recovery device according to claim 2, characterized in that: The top end of the mold placing table (9) is provided with a plurality of grooves for conveniently clamping and placing the mold.
8. The die heating furnace with waste heat recovery device according to claim 2, characterized in that: The control panel (3) and the exhaust fan (13), the second electromagnetic valve (24) are electrically connected.