Foamed aluminum composite acoustic panel for mine

• Main Authors: KANG HAITONG, SHAN CHENGFANG, QIN JIANYUN, WEN YINGYUAN, WANG HONGZHI, LIU HONGLIN, LI GUODONG, GUAN YU
• Format: Patent
• Language: Chinese; English
• Published: 19.09.2023
• Subjects: LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; PERFORMING OPERATIONS; TRANSPORTING

The utility model discloses a foamed aluminum composite sound-absorbing board for a mine, which comprises two layers of foamed aluminum boards and a polyester fiber sound-absorbing board (2), a cavity is reserved between the two layers of foamed aluminum boards, and the two layers of foamed aluminum boards are respectively a closed-hole foamed aluminum board (1) and a through-hole foamed aluminum board (3). The closed-cell foamed aluminum plate (1), the polyester fiber sound-absorbing plate (2) and the through-cell foamed aluminum plate (3) are sequentially arranged from outside to inside, a first cavity (4) is formed between the closed-cell foamed aluminum plate (1) and the polyester fiber sound-absorbing plate (2), and a second cavity (5) is formed between the polyester fiber sound-absorbing plate (2) and the through-cell foamed aluminum plate (3). According to the utility model, the underground noise can be effectively absorbed, the harm of noise pollution to underground workers is reduced, and the safety