Home > Technological Achievements
1. Patent situation: 3 invention patents and 14 utility model patents.
| Patent list | ||||||
| No. | Patent name | category | Authorization date | Patent No | Method of obtaining | Whether valid |
| 1 | Method for producing ferrous sulfate-containing zinc sulfate monohydrate | invention | 2015/7/29 | ZL201310363787.3 | Independent research and development | Yes |
| 2 | Method for removing iron from zinc-containing waste leachate | invention | 2015/1/14 | ZL201310297484.6 | Independent research and development | Yes |
| 3 | Rotary kiln cylinder with diversion function | invention | 2015/11/25 | ZL201310383752.6 | Independent research and development | Yes |
| 4 | System for driving rotation of rotary kiln cylinder | Utility model | 2014/3/5 | ZL201320532141.9 | Independent research and development | Yes |
| 5 | Acid mist absorption and recycling system | Utility model | 2014/2/26 | ZL201320532188.5 | Independent research and development | Yes |
| 6 | Device for improving vapor-liquid separation rate in concentration process | Utility model | 2014/2/26 | ZL201320532213.X | Independent research and development | Yes |
| 7 | A new type of rotary kiln waste heat recovery and utilization system | Utility model | 2013/4/24 | ZL201220558566.2 | Independent research and development | Yes |
| 8 | Electric simple stone grinding and crushing device | Utility model | 2013/4/24 | ZL201220558487.1 | Independent research and development | Yes |
| 9 | Water inlet device for heating boiler by waste heat of boiler exhaust gas | Utility model | 2013/4/24 | ZL201220558617.1 | Independent research and development | Yes |
| 10 | Air intake device for heating boiler by waste heat of boiler exhaust gas | Utility model | 2013/4/24 | ZL201220558803.5 | Independent research and development | Yes |
| 11 | System for improving boiler heat utilization rate by using waste heat of boiler exhaust gas | Utility model | 2013/4/24 | ZL201220558927.3 | Independent research and development | Yes |
| 12 | Electric high-efficiency solid powder separating device | Utility model | 2012/12/12 | ZL201220173683.7 | Independent research and development | Yes |
| 13 | Rotary kiln waste heat recovery and utilization device | Utility model | 2012/11/28 | ZL201220173687.5 | Independent research and development | Yes |
| 14 | Electric high-efficiency cleaning dirty woven bag device | Utility model | 2012/11/21 | ZL201220173689.4 | Independent research and development | Yes |
| 15 | Upper and lower movable upper suction high pressure conveying solid and liquid mixture device | Utility model | 2012/11/21 | ZL201220173686.0 | Independent research and development | Yes |
| 16 | Upper and lower movable downdraft high pressure conveying solid and liquid mixture device | Utility model | 2012/11/21 | ZL201220173703.0 | Independent research and development | Yes |
| 17 | Unit device for improving heat utilization rate in concentration process | Utility model | 2012/11/21 | ZL201220173690.7 | Independent research and development | Yes |
2.exclusive products: zinc content ≥ 33% feed additive - water sulfur zinc
