Sintering device for processing magnetic material
By introducing a flue gas channel and a circulating water system into the sintering device, the energy waste problem of traditional magnetic material sintering devices has been solved, heat energy recovery and rapid cooling have been achieved, production efficiency has been improved and costs have been reduced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO ZHONGWEI NEW MATERIALS CO LTD
- Filing Date
- 2025-07-24
- Publication Date
- 2026-05-29
AI Technical Summary
Traditional magnetic material sintering equipment suffers from energy waste, low thermal efficiency, and increased production costs.
A sintering device with a flue gas exhaust channel and a circulating water system was designed. The flue gas exhaust channel is used for heat insulation, and heat energy is recovered and utilized through a circulating water pump and a jacket. During the cooling stage, the temperature is rapidly reduced by cooling water.
It reduces energy loss, improves energy utilization efficiency, lowers production costs, and shortens the cooling time of magnetic materials, thereby increasing production efficiency.
Smart Images
Figure CN224302730U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of sintering equipment, specifically relating to a sintering device for processing magnetic materials. Background Technology
[0002] Magnetic materials, as indispensable key materials in modern technology, have wide and important applications in numerous industries such as electronics, electrical engineering, communications, machinery, and automobiles. For example, in electronic devices, magnetic materials are used to manufacture core components such as transformers, inductors, and magnetic heads, playing a decisive role in the performance and stability of the equipment. In the field of new energy vehicles, high-performance magnetic materials are key components of motors and generators, directly affecting the vehicle's power performance and energy efficiency. Sintering is a crucial step in the processing of magnetic materials. It uses high-temperature heating to bond magnetic material powder particles together, forming a solid material with certain strength and specific magnetic properties. The performance and quality of the sintering equipment directly determine the sintering effect of the magnetic materials, thus affecting their final performance and service life.
[0003] Traditional magnetic material sintering apparatuses have many problems. In terms of heat energy utilization, most traditional apparatuses lack effective heat energy recovery and reuse mechanisms. In addition to being used for sintering magnetic materials, a large amount of heat generated by combustion is lost to the surrounding environment through the furnace body, resulting in a great waste of energy and increasing production costs. Therefore, this application proposes a sintering apparatus for magnetic material processing. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a sintering device for processing magnetic materials, which aims to solve the technical problem of energy waste in the existing magnetic material sintering devices.
[0005] Technical solution
[0006] To address the aforementioned technical problems, this utility model provides a sintering apparatus for processing magnetic materials, comprising a sintering furnace with a furnace door, a furnace chamber inside the sintering furnace, and a sintering rack inside the furnace chamber for holding the magnetic materials to be sintered; a burner and a flue pipe are respectively provided at both ends of the sintering furnace, the burner is used to supply heat to the furnace chamber for sintering the magnetic materials, a flue pipe is connected to the flue pipe between the furnace chamber and the inner wall of the sintering furnace, and a flue outlet is provided on the side wall of the furnace chamber, which is connected to the flue outlet.
[0007] Preferably, the sintering frame includes four vertical arms erected inside the furnace and a frame plate horizontally arranged between the four vertical arms, and the frame plate has several through holes.
[0008] Preferably, the burner is centered in the furnace and delivers the heat source, and the flue gas outlet is located on the top and bottom walls of the furnace at the end facing the burner.
[0009] Preferably, the sintering furnace has an inner layer in its furnace wall, a support column is vertically fixed to the top of the sintering furnace, and a water storage tank is fixed to the top of the support column. The water storage tank is used to circulate water into the inner layer.
[0010] Preferably, the water storage tank is provided with a water injection pipe at the top and a drain pipe at the bottom, both of which are connected to the inside of the water storage tank, and both are equipped with a single-opening valve.
[0011] Preferably, the bottom of the water storage tank is provided with a circulating water outlet pipe and a circulating water inlet pipe, which connect the water storage tank and the interlayer, and a circulating water pump is installed at the end of the circulating water outlet pipe and the circulating water inlet pipe facing the sintering furnace.
[0012] Preferably, a baffle is provided in the interlayer at the top of the sintering furnace, and the baffle is located between the circulating water outlet pipe and the circulating water inlet pipe.
[0013] Preferably, both the circulating water outlet pipe and the circulating water inlet pipe are equipped with a three-way valve, and the other port of the three-way valve is connected to a cold water branch pipe. The three-way valve controls the connection and disconnection between the cold water branch pipe, the water storage tank, and the interlayer.
[0014] Beneficial effects
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] This invention utilizes the flue gas within the exhaust duct to insulate the furnace, reducing energy loss. Simultaneously, a circulating water system comprised of a water storage tank, circulating outlet pipe, circulating inlet pipe, and circulating water pump enables heat recovery and utilization, further improving energy efficiency and reducing production costs.
[0017] In this invention, after sintering, the cooling water branch pipe is connected to the jacket by adjusting the three-way valve, which can quickly deliver cooling water into the jacket to rapidly cool the sintering furnace, thereby shortening the cooling time of the magnetic material and improving production efficiency. Attached image description:
[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the internal structure of the sintering furnace in this utility model;
[0021] Figure 3 This is a schematic diagram of the water storage tank in this utility model;
[0022] Figure 4 This is a schematic diagram of the sintering frame in this utility model.
[0023] The labels in the attached diagram are as follows: 1. Sintering furnace; 2. Furnace door; 3. Water storage tank; 4. Burner; 5. Exhaust pipe; 6. Furnace chamber; 7. Sintering rack; 8. Exhaust port; 9. Temperature and humidity sensor; 10. Exhaust duct; 11. Interlayer; 12. Baffle; 13. Water injection pipe; 14. Drainage pipe; 15. Single valve; 16. Circulating water outlet pipe; 17. Circulating water inlet pipe; 18. Cold water branch pipe; 19. Three-way valve; 20. Circulating water pump; 21. Support column; 22. Vertical arm; 23. Shelf plate. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] This embodiment provides a sintering apparatus for processing magnetic materials, the structural schematic diagram of which is shown below. Figures 1-4 As shown, it includes a sintering furnace 1, a furnace chamber 6, a flue gas passage 10, and a jacket 11. The sintering furnace 1 is generally rectangular in shape, and a furnace door 2 is provided on the sintering furnace 1 for opening and closing the sintering furnace 1, which facilitates the placement and removal of magnetic materials.
[0026] In this embodiment, the furnace chamber 6 is located inside the sintering furnace 1, and the sintering rack 7 is installed inside the furnace chamber 6. The specific structure is as follows: four vertical arms 22 are erected inside the furnace chamber 6, and the rack plate 23 is horizontally arranged between the four vertical arms 22. Several through holes are opened on the rack plate 23. These through holes can ensure that the heat source passes through the rack plate 23 evenly and fully sinter the magnetic material placed on the rack plate 23.
[0027] Furthermore, in this embodiment, a burner 4 is provided at one end of the sintering furnace 1. The burner 4 is centered and directs heat towards the furnace chamber 6, ensuring that the heat source is evenly distributed within the furnace chamber 6 and improving the sintering effect. An exhaust pipe 5 is provided at the other end of the sintering furnace 1. An exhaust channel 10 is formed between the furnace chamber 6 and the inner wall of the sintering furnace 1. The exhaust pipe 5 communicates with the exhaust channel 10. Exhaust ports 8 are provided on the side walls of the furnace chamber 6, located on the top and bottom walls of the furnace chamber 6 facing the burner 4, and are connected to the exhaust channel 10. During the sintering process, the flue gas generated by combustion can enter the exhaust channel 10 through the exhaust ports 8 and then be discharged through the exhaust pipe 5. Simultaneously, the flue gas within the exhaust channel 10 also provides insulation for the furnace chamber 6, reducing energy loss.
[0028] Furthermore, in this embodiment, the sintering furnace 1 has a jacket 11 inside its furnace wall. A water storage tank 3 is vertically fixed to the top of the sintering furnace 1 by a support column 21. A water injection pipe 13 is provided at the top of the water storage tank 3, and the water injection pipe 13 is connected to the inside of the water storage tank 3. A one-way valve 15 is installed on the water injection pipe 13, allowing water to be injected into the water storage tank 3. A drain pipe 14 is provided at the bottom of the water storage tank 3, and the drain pipe 14 is also connected to the inside of the water storage tank 3. A one-way valve 15 is also installed on the drain pipe 14, allowing water to be drained from the water storage tank 3 by opening the one-way valve 15 on the drain pipe 14. The bottom of the water storage tank 3 is also equipped with a circulating water outlet pipe 16 and a circulating water inlet pipe 17, which connect the water storage tank 3 and the jacket 11. A circulating water pump 20 is installed at the end of the circulating water outlet pipe 16 and the circulating water inlet pipe 17 facing the sintering furnace 1, providing power for water circulation. A three-way valve 19 is installed on both the circulating water outlet pipe 16 and the circulating water inlet pipe 17. The other end of the three-way valve 19 is connected to a cold water branch pipe 18. The three-way valve 19 can control the connection and disconnection between the water storage tank 3 and the jacket 11, as well as between the cold water branch pipe 18 and the jacket 11. A baffle 12 is installed inside the jacket 11 at the top of the sintering furnace 1, located between the circulating water outlet pipe 16 and the circulating water inlet pipe 17. The baffle 12 guides the water flow, allowing the water to circulate more fully within the jacket 11 and improving heat exchange efficiency.
[0029] Furthermore, in this embodiment, a temperature and humidity sensor 9 is installed inside the sintering furnace 1 to monitor the temperature and humidity inside the sintering furnace 1 in real time.
[0030] Working principle:
[0031] Sintering Stage: Open furnace door 2, place the magnetic material to be sintered on the rack plate 23 of sintering rack 7, and then close furnace door 2. Turn on burner 4, which delivers heat to the furnace chamber 6 to sinter the magnetic material. During sintering, the flue gas generated by combustion enters the flue gas channel 10 through flue gas outlet 8, and then exits through flue gas pipe 5. The flue gas in the flue gas channel 10 provides heat insulation for the furnace chamber 6, reducing energy loss. At the same time, adjust the three-way valve 19 to connect water tank 3 with jacket 11, and turn on circulating water pump 20. Water in water tank 3 enters jacket 11 through circulating water outlet pipe 16, absorbs the heat emitted from the inner wall of sintering furnace 1, and then returns to water tank 3 through circulating water inlet pipe 17, realizing the recovery and utilization of heat energy.
[0032] Cooling stage: After the magnetic material is sintered, the burner 4 is turned off, and the three-way valve 19 is adjusted to connect the cold water branch pipe 18 to the jacket 11. The cold water branch pipe 18 is connected to the cooling water source, and the cooling water enters the jacket 11 through the cold water branch pipe 18 to rapidly cool the sintering furnace 1, thereby achieving the cooling of the sintered magnetic material. After cooling is completed, the water in the water storage tank 3 and the jacket 11 can be drained through the drain pipe 14.
[0033] All technical features in this embodiment can be freely combined according to actual needs.
[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.
Claims
1. A sintering apparatus for processing magnetic materials, comprising a sintering furnace (1), the sintering furnace (1) being provided with a furnace door (2), characterized in that: The sintering furnace (1) is provided with a furnace chamber (6), and the furnace chamber (6) is provided with a sintering rack (7) for holding the magnetic material to be sintered; The sintering furnace (1) is provided with a burner (4) and a flue pipe (5) at both ends. The burner (4) is used to deliver heat to the furnace (6) for sintering magnetic materials. There is a flue pipe (10) between the furnace (6) and the inner wall of the sintering furnace (1). The flue pipe (5) is connected to the flue pipe (10). A flue port (8) is opened on the side wall of the furnace (6). The flue port (8) is connected to the flue pipe (10).
2. The sintering apparatus for processing magnetic materials according to claim 1, characterized in that, The sintering rack (7) includes four vertical arms (22) erected in the furnace (6) and a frame plate (23) horizontally arranged between the four vertical arms (22), and the frame plate (23) has several through holes.
3. The sintering apparatus for processing magnetic materials according to claim 1, characterized in that, The burner (4) is centered in the furnace (6) and delivers heat to the furnace. The flue gas outlet (8) is located on the top and bottom walls of the furnace (6) facing the burner (4).
4. The sintering apparatus for processing magnetic materials according to claim 1, characterized in that, The sintering furnace (1) has a jacket (11) inside the furnace wall. A support column (21) is vertically fixed on the top of the sintering furnace (1). A water storage tank (3) is fixed at the top of the support column (21). The water storage tank (3) is used to circulate water into the jacket (11).
5. A sintering apparatus for processing magnetic materials according to claim 4, characterized in that, The water storage tank (3) is provided with a water injection pipe (13) at the top and a drain pipe (14) at the bottom. Both the water injection pipe (13) and the drain pipe (14) are connected to the inside of the water storage tank (3), and both the water injection pipe (13) and the drain pipe (14) are equipped with a single-opening valve (15).
6. The sintering apparatus for processing magnetic materials according to claim 4, characterized in that, The bottom of the water storage tank (3) is provided with a circulating water outlet pipe (16) and a circulating water inlet pipe (17). The circulating water outlet pipe (16) and the circulating water inlet pipe (17) connect the water storage tank (3) and the interlayer (11). A circulating water pump (20) is installed at the end of the circulating water outlet pipe (16) and the circulating water inlet pipe (17) facing the sintering furnace (1).
7. A sintering apparatus for processing magnetic materials according to claim 6, characterized in that, A baffle (12) is provided in the interlayer (11) at the top of the sintering furnace (1), and the baffle (12) is located between the circulating water outlet pipe (16) and the circulating water inlet pipe (17).
8. A sintering apparatus for processing magnetic materials according to claim 6, characterized in that, Both the circulating water outlet pipe (16) and the circulating water inlet pipe (17) are equipped with a three-way valve (19). The other port of the three-way valve (19) is connected to a cold water branch pipe (18). The three-way valve (19) controls the opening and closing of the cold water branch pipe (18) and the water storage tank (3) and the interlayer (11).