Energy-saving roasting furnace for roasting metal gallium
Patent Information
- Application Number
- CN202522209821.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-20
- Publication Date
- 2026-09-15
- Estimated Expiration
- 2035-10-20
AI Technical Summary
[0003]当前的金属镓焙烧炉多采用封闭式炉体结构，在长期高温焙烧作业中，炉体本体外壁会因热传导产生大量散发热量，该部分余热未得到有效回收利用，直接散失至车间环境中，不仅造成能源浪费，还会导致车间环境温度升高，需额外投入空调制冷能耗以保障操作环境，进一步增加生产总成本
1.本实用新型通过设置回收结构，利用导热板将炉体外壁散发热量高效传递至回收结构内部，配合叶片转动驱动的气流循环，可将外界冷空气加热为热风并通过出气壳外接管道输送至其他需预热设备，实现炉体余热的定向回收利用。一方面减少能源浪费，降低金属镓焙烧工序的总能耗；另一方面避免余热导致车间环境温度升高，减少车间空调制冷的额外能耗。
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Figure CN224757512U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gallium calcination technology, specifically to an energy-saving calcination furnace for gallium calcination. Background Technology
[0002] Gallium is a key rare and dispersed metal in high-tech fields such as semiconductors, optoelectronic materials, and new energy. Its purification process requires the removal of carbon, sulfur, and volatile impurities from the raw materials through a roasting process. The operating efficiency and energy efficiency of the roasting furnace directly affect the energy consumption and cost of gallium production.
[0003] Current gallium calcination furnaces mostly employ a closed furnace structure. During long-term high-temperature calcination operations, the outer wall of the furnace body generates a large amount of heat dissipation due to heat conduction. This waste heat is not effectively recovered and utilized, but is directly lost into the workshop environment. This not only wastes energy but also increases the ambient temperature in the workshop, requiring additional investment in air conditioning to maintain a safe operating environment, further increasing the overall production cost. Therefore, to address these problems, this utility model has been developed. Utility Model Content
[0004] To address the shortcomings of existing technologies, the technical solution adopted by this utility model is as follows: an energy-saving calcining furnace for gallium calcination, comprising: a calcining furnace body, a recovery structure fixedly connected to the outer wall of the calcining furnace body, the recovery structure including a heat insulation structure, an air outlet shell fixedly connected to the top of the heat insulation structure, a heat-conducting plate fixedly connected to the inner wall of the heat insulation structure, blades fixedly connected to the bottom of the heat insulation structure, a filter plate provided at the bottom of the blades, and a cleaning structure slidably connected to the bottom of the heat insulation structure.
[0005] Preferably, the end of the heat-conducting plate away from the recycling structure is fixedly connected to the outer wall of the roasting furnace body, the outer wall of the heat-conducting plate is provided with heat dissipation holes, the blades are driven by a rotating motor, and the outer wall of the filter plate is fixedly connected to the inner wall of the recycling structure.
[0006] Preferably, the insulation structure includes a support shell, and an insulation board is fixedly connected to the outer wall of the support shell.
[0007] Preferably, an air intake shell is fixedly connected to the bottom of the support shell, and a sliding groove is provided at the bottom of the air intake shell.
[0008] Preferably, the cleaning structure includes a sliding plate, and a slider and a cleaning brush are fixedly connected to the top of the sliding plate.
[0009] Preferably, the bottom of the cleaning brush is provided with a dust collection box, and the inner wall of the dust collection box is slidably connected to the outer wall of the slide plate.
[0010] The beneficial effects of this utility model are as follows: 1. This utility model, by setting up a recovery structure, utilizes a heat-conducting plate to efficiently transfer heat radiating from the outer wall of the furnace to the interior of the recovery structure. Combined with airflow circulation driven by rotating blades, it can heat outside cold air into hot air, which is then transported to other equipment requiring preheating via external pipes connected to the outlet shell, achieving targeted recovery and utilization of the furnace's waste heat. This reduces energy waste and lowers the total energy consumption of the gallium calcination process; furthermore, it prevents waste heat from causing an increase in workshop ambient temperature, reducing the additional energy consumption for workshop air conditioning.
[0011] 2. This utility model, by setting up a cleaning structure, allows the filter plate at the bottom of the recovery structure to effectively intercept impurities in the cold air from the outside, preventing impurities from entering the recovery structure and adhering to the surface of the heat-conducting plate, thus avoiding a decrease in the heat conduction efficiency of the heat-conducting plate and ensuring the stable operation of the waste heat recovery system. At the same time, in conjunction with the cleaning structure, operators do not need to disassemble the recovery structure; they only need to push the sliding plate, which allows the slider to slide stably along the air inlet shell groove, driving the cleaning brush to make close contact with the bottom of the filter plate, sweeping the dust accumulated on the surface of the filter plate into the dust collection box, thereby achieving rapid cleaning of the filter plate. Attached Figure Description
[0012] Figure 1 This is the front view of this utility model; Figure 2 This is a cross-sectional view of the recycling structure of this utility model; Figure 3 This is a cross-sectional view of the thermal insulation structure of this utility model; Figure 4 This is a schematic diagram of the cleaning structure of this utility model.
[0013] In the diagram: 1. Recycling structure; 2. Roasting furnace body; 11. Insulation structure; 12. Gas outlet shell; 13. Heat conduction plate; 14. Blades; 15. Filter plate; 16. Cleaning structure; 111. Support shell; 112. Insulation plate; 113. Gas inlet shell; 161. Slide plate; 162. Sliding block; 163. Cleaning brush; 164. Ash collection box. Detailed Implementation
[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.
[0015] Example: Please see Figure 1 - Figure 2 This utility model provides a technical solution: an energy-saving calcining furnace for gallium calcination, comprising: a calcining furnace body 2, a recovery structure 1 fixedly connected to the outer wall of the calcining furnace body 2, the recovery structure 1 including a heat insulation structure 11, an exhaust shell 12 fixedly connected to the top of the heat insulation structure 11, a heat-conducting plate 13 fixedly connected to the inner wall of the heat insulation structure 11, blades 14 fixedly connected to the bottom of the heat insulation structure 11, a filter plate 15 disposed at the bottom of the blades 14, and a cleaning structure slidably connected to the bottom of the heat insulation structure 11. Structure 16: The end of the heat-conducting plate 13 furthest from the recovery structure 1 is fixedly connected to the outer wall of the roasting furnace body 2. The outer wall of the heat-conducting plate 13 has heat dissipation holes. The blades 14 are driven by a rotating motor. The outer wall of the filter plate 15 is fixedly connected to the inner wall of the recovery structure 1. When the roasting furnace body 2 starts to perform gallium roasting, the waste heat generated on its outer wall is transferred to the interior of the recovery structure 1 through the heat-conducting plate 13. Because the outer wall of the heat-conducting plate 13 has heat dissipation holes, the heat can be more evenly diffused into the space enclosed by the insulation structure 11. At this time, the rotating motor driving the blades 14 is started. The blades 14 rotate to generate airflow, drawing in cold air from the bottom of the insulation structure 11. When the cold air passes through the filter plate 15, impurities in the air are intercepted by the filter plate 15, preventing them from entering the interior of the recovery structure 1 and affecting the heat conduction efficiency. Subsequently, the cold air contacts the heat-conducting plate 13, absorbs heat, and is converted into hot air, which is then discharged through the air outlet shell 12. The hot air can be connected to an external pipe to transport it to other equipment that needs preheating to achieve waste heat recovery.
[0016] Please see Figure 3 The insulation structure 11 includes a support shell 111, with an insulation board 112 fixedly connected to the outer wall of the support shell 111. An air inlet shell 113 is fixedly connected to the bottom of the support shell 111, and a sliding groove is provided at the bottom of the air inlet shell 113. The support shell 111 serves as the core skeleton of the insulation structure 11, firmly supporting the insulation board 112 and the air inlet shell 113, ensuring the overall connection stability between the insulation structure 11 and the recovery structure 1, and preventing structural loosening due to slight vibrations during the operation of the roasting furnace body 2. The insulation board 112 on the outer wall of the support shell 111 fits tightly, effectively preventing heat from escaping from the interior of the insulation structure 11, reducing heat loss during the recovery process, and allowing the cold air entering the recovery structure 1 to fully absorb the heat transferred by the heat-conducting plate 13, thereby improving the hot air temperature and waste heat utilization rate. Outside cold air needs to enter the recovery structure 1 through the air intake shell 113 at the bottom of the support shell 111. The air intake shell 113 plays a role in guiding airflow. At the same time, the sliding groove at its bottom is adapted to the cleaning structure 16. When the cleaning structure 16 needs to be operated to clean the filter plate 15, the sliding groove provides a stable track for the sliding of the cleaning structure 16, ensuring that the cleaning action is smooth and does not get stuck.
[0017] Please see Figure 4The cleaning structure 16 includes a sliding plate 161. A slider 162 and a cleaning brush 163 are fixedly connected to the top of the sliding plate 161. A dust collection box 164 is provided at the bottom of the cleaning brush 163. The inner wall of the dust collection box 164 is slidably connected to the outer wall of the sliding plate 161. When the filter plate 15 accumulates dust due to long-term interception of impurities, causing a decrease in the efficiency of cold air entering the recovery structure 1, the operator pushes the sliding plate 161 of the cleaning structure 16. The slider 162 at the top of the sliding plate 161 slides along the groove at the bottom of the air inlet shell 113. At the same time, the cleaning brush 163 at the top of the sliding plate 161 moves with the sliding plate 161 and comes into close contact with the bottom of the filter plate 15, sweeping off the dust attached to the surface of the filter plate 15. The swept dust falls directly into the dust collection box 164 at the bottom of the cleaning brush 163, preventing dust from accumulating at the bottom of the insulation structure 11 or entering the interior of the recovery structure 1 and causing pollution. When the dust collection box 164 is full of dust, slide the dust collection box 164 out along the outer wall of the slide plate 161, empty the dust, and then slide the dust collection box 164 back to its original position.
[0018] Working principle: During operation, the roasting furnace body 2 starts to roast gallium metal. The waste heat generated on its outer wall is transferred to the interior of the recovery structure 1 through the heat conduction plate 13. Because the heat conduction plate 13 has heat dissipation holes on its outer wall, the heat can be more evenly diffused into the space enclosed by the insulation structure 11. At this time, the motor driving the blades 14 is started. The blades 14 rotate to generate airflow, which draws in cold air from the bottom of the insulation structure 11. When the cold air passes through the filter plate 15, impurities in the air are intercepted by the filter plate 15 to prevent them from entering the interior of the recovery structure 1 and affecting the heat conduction efficiency. Then, the cold air comes into contact with the heat conduction plate 13 to absorb heat and is converted into hot air, which is then discharged through the air outlet shell 12. The hot air can be connected to an external pipe to be transported to other equipment that needs preheating to realize waste heat recovery. The support shell 111, as the core skeleton of the insulation structure 11, stably supports the insulation plate 112 and the air inlet shell 113, ensuring the overall connection stability of the insulation structure 11 and the recovery structure 1, and preventing the structure from loosening due to slight vibrations during the operation of the roasting furnace body 2. The insulation board 112 on the outer wall of the support shell 111 fits tightly, which can effectively prevent the heat inside the insulation structure 11 from escaping outward, reduce the loss of waste heat in the recovery process, and allow the cold air entering the recovery structure 1 to fully absorb the heat transferred by the heat conduction plate 13, thereby improving the hot air temperature and waste heat utilization rate. Outside cold air needs to enter the recovery structure 1 through the air intake shell 113 at the bottom of the support shell 111. The air intake shell 113 plays a role in guiding airflow. At the same time, the sliding groove at its bottom is adapted to the cleaning structure 16. When the cleaning structure 16 needs to be operated to clean the filter plate 15, the sliding groove provides a stable track for the sliding of the cleaning structure 16, ensuring smooth and uninterrupted cleaning. When the filter plate 15 accumulates dust due to long-term interception of impurities, causing a decrease in the efficiency of cold air entering the recovery structure 1, the operator pushes the sliding plate 161 of the cleaning structure 16. The slider 162 at the top of the sliding plate 161 will slide along the sliding groove at the bottom of the air intake shell 113. At the same time, the cleaning brush 163 at the top of the sliding plate 161 moves with the sliding plate 161 and makes close contact with the bottom of the filter plate 15, sweeping off the dust attached to the surface of the filter plate 15. The swept dust falls directly into the dust collection box 164 at the bottom of the cleaning brush 163, preventing dust from accumulating at the bottom of the insulation structure 11 or entering the interior of the recovery structure 1 and causing pollution. When the dust collection box 164 is full of dust, slide the dust collection box 164 out along the outer wall of the slide plate 161, empty the dust, and then slide the dust collection box 164 back to its original position.
[0019] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.
Claims
1. An energy-saving roaster for roasting metallic gallium, comprising a roaster body (2), characterized by: The outer wall of the roasting furnace body (2) is fixedly connected to a recycling structure (1); The recycling structure (1) includes a heat insulation structure (11), an air outlet shell (12) is fixedly connected to the top of the heat insulation structure (11), a heat conduction plate (13) is fixedly connected to the inner wall of the heat insulation structure (11), a blade (14) is fixedly connected to the bottom of the heat insulation structure (11), a filter plate (15) is provided at the bottom of the blade (14), and a cleaning structure (16) is slidably connected to the bottom of the heat insulation structure (11).
2. The energy-saving roaster for roasting metal gallium according to claim 1, characterized in that: The end of the heat-conducting plate (13) away from the recovery structure (1) is fixedly connected to the outer wall of the roasting furnace body (2). The outer wall of the heat-conducting plate (13) is provided with heat dissipation holes. The blade (14) is driven by a rotating motor. The outer wall of the filter plate (15) is fixedly connected to the inner wall of the recovery structure (1).
3. The energy-saving roaster for roasting metal gallium according to claim 1, characterized in that: The insulation structure (11) includes a support shell (111), and an insulation board (112) is fixedly connected to the outer wall of the support shell (111).
4. The energy-saving roaster for roasting metallic gallium according to claim 3, characterized in that: The bottom of the support shell (111) is fixedly connected to the air intake shell (113), and the bottom of the air intake shell (113) is provided with a sliding groove.
5. The energy-saving calcining furnace for gallium calcination according to claim 1, characterized in that: The cleaning structure (16) includes a sliding plate (161), on the top of which a slider (162) and a cleaning brush (163) are fixedly connected.
6. The energy-saving calcining furnace for gallium calcination according to claim 5, characterized in that: The bottom of the cleaning brush (163) is provided with a dust collection box (164), and the inner wall of the dust collection box (164) is slidably connected to the outer wall of the slide plate (161).