一种废旧电子线路板回收用熔炼设备
By using an air pump to extract hot air for preheating and drying in waste electronic circuit board smelting equipment, the problem of sudden pressure rise in the furnace caused by damp circuit boards is solved, improving safety and feeding flexibility.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI ZHENENG TECH CO LTD
- Filing Date
- 2025-08-27
- Publication Date
- 2026-07-17
AI Technical Summary
When wet circuit boards are added to existing waste electronic circuit board smelting equipment, the rapid evaporation of moisture causes a sudden increase in pressure inside the furnace, posing a risk of splashing or explosion.
A gas pump is used to draw hot air from the electric arc furnace to preheat and dry the feed hopper and feeding pipe. Waste electronic circuit boards are transported through the feeding pipe and preheated and dried before melting to prevent rapid evaporation of moisture.
It improves the safety of smelting equipment, avoids splashing or explosion caused by rapid evaporation of moisture, and enhances the flexibility and safety of feeding.
Smart Images
Figure CN224516800U_ABST
Abstract
Claims
1. A smelting apparatus for recycling waste electronic circuit boards, comprising an electric arc furnace (1), characterized in that: The electric arc furnace (1) is detachably connected to a sealing cover (2). A round hole (3) is provided at the center of the top of the sealing cover (2). A ring plate (4) is rotatably provided inside the round hole (3). A feeding pipe (5) passes through the ring plate (4). An anti-blocking mechanism (6) is provided inside the feeding pipe (5). The top of the feeding pipe (5) is connected to the feeding hopper (7), and the bottom of the feeding pipe (5) is fixedly provided with a connecting block (8). The bottom of the connecting block (8) is provided with an air pump (9). The air inlet of the air pump (9) is connected to the inside of the electric arc furnace (1) through the air inlet pipe (10), and the air outlet of the air pump (9) is connected to the inside of the feeding hopper (7) through the air outlet pipe (11).
2. The smelting equipment for recycling waste electronic circuit board according to claim 1, characterized in that: Metal filter plates (12) are fixedly installed inside both the air inlet pipe (10) and the air outlet pipe (11).
3. The smelting equipment for recycling waste electronic circuit board according to claim 1, characterized in that: The anti-blocking mechanism (6) includes a spiral auger (61) installed inside the feeding pipe (5). A reduction motor (62) is fixedly installed at the front end of the feeding pipe (5). The rear end of the output shaft of the reduction motor (62) passes through the feeding pipe (5) and is fixed to the front end of the spiral auger (61).
4. The smelting equipment for recycling waste electronic circuit board according to claim 1, characterized in that: The sealing cover (2) is fixedly provided with a circular track (13) at the top. A slider (14) is slidably provided inside the circular track (13). A sleeve (15) is detachably connected to the top of the slider (14). The sleeve (15) is fitted on the outer wall of the feeding pipe (5).
5. The smelting apparatus for recycling waste electronic circuit board according to claim 4, characterized in that: The slider (14) has a through hole (16) on the side near the air pump (9) that is compatible with the air inlet pipe (10), and the air inlet pipe (10) passes through the through hole (16).
6. The smelting equipment for recycling waste electronic circuit boards according to claim 1, characterized in that: The electric arc furnace (1) is fixedly provided with a base (17) at the bottom. The base (17) is fixedly provided with multiple casters (18) with brakes at the bottom. The base (17) and the outer wall of the electric arc furnace (1) are fixedly provided with multiple lifting rings (19) arranged in a ring array.
7. The smelting apparatus for recycling waste electronic circuit board according to claim 1, characterized in that: The top of the feed hopper (7) is hinged to a cover plate (20), and a lever is fixedly provided on the top of the cover plate (20).