China Light Industry Wuhan Design Engineering Co.

Wuhan, China

China Light Industry Wuhan Design Engineering Co.

Wuhan, China
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Chen G.,South China University of Technology | Wang C.-C.,South China University of Technology | Yan Z.-Y.,China Light Industry Wuhan Design & Engineering Co. | Fang Z.-Q.,South China University of Technology | Zhu P.-H.,South China University of Technology
Huanan Ligong Daxue Xuebao/Journal of South China University of Technology (Natural Science) | Year: 2017

Polyimide fiber/epoxy paper-based composite materials were prepared from polyimide chopped fibers and polyimide fibrid fibers by means of wet papermaking combined with hot pressing and resin impregnation, and the effects of hot-pressing temperature, hot-pressing pressure and epoxy resin impregnation increment on the properties of polyimide fiber paper-based composite materials were investigated. The results show that (1) after the hot pressing, the contact area of polyimide fibers increases, which results in the improvement of mechanical and electrical properties of the polyimide fiber paper; (2) resin impregnation further improves the mechanical and electrical properties of polyimide fiber paper-based composite, concretely, the tensile index increases by 1.25 fold and the dielectric strength increases by 17%; and (3) at a hot-pressing temperature of 210℃, a hot-pressing pressure of 120 N/mm and an impregnation increment of 20%, the composite possesses good mechanical and electrical properties, namely a tensile index of 57.5 N·m/g, a tear index of 6.86 mN·m2/g and a dielectric strength of 12.3 kV/mm, which means that the composite is potentially useful in such fields as aerospace, insulation barrier and environmental protection. © 2017, Editorial Department, Journal of South China University of Technology. All right reserved.


Zhan W.,Huazhong University of Science and Technology | Wang X.,Huazhong University of Science and Technology | Wang X.,China Light Industry Wuhan Design Engineering Co. | Li D.,Huazhong University of Science and Technology | And 4 more authors.
Water Science and Technology | Year: 2013

In this study, we investigated the pretreatment of a high concentration pharmaceutical wastewater by catalytic wet air oxidation (CWAO) process. Different experiments were conducted to investigate the effects of the catalyst type, operating temperature, initial system pH, and oxygen partial pressure on the oxidation of the wastewater. Results show that the catalysts prepared by the co-precipitation method have better catalytic activity compared to others. Chemical oxygen demand (COD) conversion increased with the increase in temperature from 160 to 220°C and decreased with the increase in pH. Moreover, the effect of the oxygen partial pressure on the COD conversion was significant only during the first 20 min of the reaction. Furthermore, the biodegradability of the wastewater improved greatly after CWAO, the ratio of BOD5/COD increased less than 0.1-0.75 when treated at 220°C (BOD: biochemical oxygen demand). © IWA Publishing 2013.


Li L.-Y.,Wuhan Kaidi General Research Institute | Li W.-L.,China Light Industry Wuhan Design Engineering Co.
Chung-kuo Tsao Chih/China Pulp and Paper | Year: 2012

This paper summarized the chemi-mechanical pulp production lines introduced into China and expounded the development of chemi-mechanical pulp. The application requirements and the characteristics of the current chemi-mechanical pulp are discussed.


Wang X.-C.,China Light Industry Wuhan Design Engineering Co. | Guo X.-W.,China Light Industry Wuhan Design Engineering Co.
Chung-kuo Tsao Chih/China Pulp and Paper | Year: 2014

In this paper, the basic methods of paper mill sludge conditioning, dewatering and drying were systematic introduced, and focused on the sludge drying technology and its application cases. Sludge dewatering and drying is the precondition of recycling disposal. Choosing reasonable conditioning, dewatering and drying methods, the moisture content of sludge and sludge volume can be reduced, which not only reduces the impact of paper sludge on environment, but also saves a lot of energy for paper companies, and even realizes resource utilization.


Wang X.-C.,China Light Industry Wuhan Design Engineering Co. | Guo X.-W.,China Light Industry Wuhan Design Engineering Co. | Hu W.-F.,China Light Industry Wuhan Design Engineering Co. | Wu L.,China Light Industry Wuhan Design Engineering Co.
Chung-kuo Tsao Chih/China Pulp and Paper | Year: 2012

The pulping and papermaking wastewater treated by anaerobic and aerobic processes was further treated by advanced treatment with the process of flocculation-Fenton oxidation-astrasand process. The construction, equipments and operation parameters of the process were introduced in this paper. The benefits and characteristics of this engineering were also analyzed and summarized. Using this process the effluent quality can meet the discharge standard of water pollutants for pulp and paper industry (GB3544-2008).


Yuan J.-L.,China Light Industry Wuhan Design Engineering Co. | Liang B.,China Light Industry Wuhan Design Engineering Co. | Li W.-L.,China Light Industry Wuhan Design Engineering Co. | Liu B.-P.,China Light Industry Wuhan Design Engineering Co.
Chung-kuo Tsao Chih/China Pulp and Paper | Year: 2015

This paper reported the engineering application of MVR in treatment of chemimechanical pulp effluent and briefly analysed the technology process and operation energy consumption. The application result showed that comparing with traditional multi-effect evaporation process, the MVR technique was more economical in treatment of chemimechanical pulp effluent. ©, 2015, China Technical Association of Paper Industry. All right reserved.


Li X.-M.,China Light Industry Wuhan Design Engineering Co. | He J.,China Light Industry Wuhan Design Engineering Co. | Yang N.-S.,China Light Industry Wuhan Design Engineering Co.
Chung-kuo Tsao Chih/China Pulp and Paper | Year: 2015

The paper introduced the process design of vacuum system of the paper machine which was designed by China Light Industry Wuhan Design Engineering Co., Ltd., the paper machine's width was 5600 mm, the speed was 800 m/min. The paper was discussed the calculation and distribution of vacuum capacity of the dewatering; the DCS control principle of the vacuum flow; the design of the vacuum silencer; and the design of the recycling of the water used for vacuum pumps. ©, 2015, China Technical Association of Paper Industry. All right reserved.

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