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PATENTSCOPE
1. (WO2012171366) APPARATUS AND METHOD FOR RECYCLING SILICON POWDER IN WASTEWATER FROM SILICON PROCESSING
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Pub. No.:
WO/2012/171366
International Application No.:
PCT/CN2012/072043
Publication Date:
20.12.2012
International Filing Date:
07.03.2012
IPC:
C02F 9/06
(2006.01),
C01B 33/02
(2006.01)
C
CHEMISTRY; METALLURGY
02
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
F
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
9
Multistep treatment of water, waste water or sewage
04
at least one step being a chemical treatment
06
Electrochemical treatment
C
CHEMISTRY; METALLURGY
01
INORGANIC CHEMISTRY
B
NON-METALLIC ELEMENTS; COMPOUNDS THEREOF
33
Silicon; Compounds thereof
02
Silicon
Applicants:
BOYING XIAMEN SCIENCE AND TECHNOLOGY CO., LTD
[CN/CN]; ZHANG, Shiwen 1st, No.42, Xinglinxi Road, Jimei Xiamen, Fujian 361000 (CN)
(For All Designated States Except US)
.
ZHANG, Shiwen
[CN/CN]; (CN)
(For US Only)
Inventors:
ZHANG, Shiwen
; (CN)
Agent:
QUANZHOU BOYI PATENT AGENCY
; FANG, Chuanbang 301, Building D,Yonghong Huayuan, Fengze Quanzhou, Fujian 362000 (CN)
Priority Data:
201110163091.7
15.06.2011
CN
Title
(EN)
APPARATUS AND METHOD FOR RECYCLING SILICON POWDER IN WASTEWATER FROM SILICON PROCESSING
(FR)
APPAREIL ET PROCÉDÉ DE RECYCLAGE DE POUDRE DE SILICIUM DANS L'EAU USÉE ISSUE DE LA TRANSFORMATION DU SILICIUM
(ZH)
一种硅加工废水中硅粉回收利用装置及其方法
Abstract:
(EN)
An apparatus for recycling silicon powder in wastewater from silicon processing and a method therefor. The apparatus is provided with an electrolysis system, a centrifugal separation system, a drying system, and a filtration system. The electrolysis system is provided with a stop valve (11), a water supply pump (12), an electrolysis machine (13), and a buffer tank (14). The centrifugal separation system is provided with stop valves (21 and 25), a water supply pump (22), a centrifuge (23), a silicon powder collector tank (24), and a wastewater storage tank (26). The drying system is used for drying the silicon powder acquired by centrifugal separation. The filtration system is provided with stop valves (41, 44, 46, and 48), a water pump (42), a filtration apparatus (43), a tee (45), a backwash pump (47), and a recycled water storage tank (49). First, flocculation wastewater is acquired by electrolysis; then, a silicon powder sediment and wastewater are acquired by centrifugal separation; a silicon powder product is acquired when the silicon powder sediment acquired by centrifugal separation is dried; the wastewater acquired by centrifugal separation is filtered, and recycled water is acquired by introducing a filtrate produced by the filtration into the recycled water storage tank (49).
(FR)
L'invention concerne un appareil de recyclage de poudre de silicium présente dans l'eau usée issue de la transformation du silicium et un procédé à cet effet. L'appareil est muni d'un système d'électrolyse, d'un système de séparation centrifuge, d'un système de séchage et d'un système de filtration. Le système d'électrolyse est muni d'une vanne (11) d'arrêt, d'une pompe (12) d'alimentation en eau, d'une machine (13) d'électrolyse et d'un réservoir tampon (14). Le système de séparation centrifuge est muni de vannes (21 et 25) d'arrêt, d'une pompe (22) d'alimentation en eau, d'une centrifugeuse (23), d'un réservoir collecteur (24) de poudre de silicium et d'un réservoir (26) de stockage d'eau usée. Le système de séchage est utilisé pour sécher la poudre de silicium obtenue par séparation centrifuge. Le système de filtration est muni de vannes (41, 44, 46 et 48) d'arrêt, d'une pompe (42) à eau, d'un appareil (43) de filtration, d'un té (45), d'une pompe(47) de lavage à contre-courant et d'un réservoir (49) de stockage d'eau recyclée. En premier lieu, de l'eau usée de floculation est obtenue par électrolyse ; ensuite, un sédiment de poudre de silicium et de l'eau usée sont obtenus par séparation centrifuge ; un produit de poudre de silicium est obtenu lorsque le sédiment de poudre de silicium obtenu par séparation centrifuge est séché ; l'eau usée obtenue par séparation centrifuge est filtrée et de l'eau recyclée est obtenue en introduisant dans le réservoir (49) de stockage d'eau recyclée un filtrat produit par la filtration.
(ZH)
一种硅加工废水中硅粉回收利用装置及其方法,该装置设有电解系统、离心分离系统、干燥系统和过滤系统;电解系统设有截止阀(11)、供水泵(12)、电解机(13)和缓冲罐(14);离心分离系统设有截止阀(21、25)、供水泵(22)、离心机(23)、硅粉收集罐(24)和废水贮罐(26);干燥系统用于将离心分离所得的硅粉干燥;过滤系统设有截止阀(41、44、46、48)、水泵(42)、过滤装置(43)、三通(45)、反洗泵(47)和再生循环水贮罐(49)。先电解,得电解絮凝废水;再离心分离,得硅粉沉淀物和废水;将离心分离后得到的硅粉沉淀物干燥后,得硅粉成品;将离心分离后得到的废水过滤,过滤产生的滤液进入到再生循环水贮罐(49)中得回用水。
Designated States:
AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Org. (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (EAPO) (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (OAPI) (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language:
Chinese (ZH)
Filing Language:
Chinese (ZH)