China Taizhou AAC Automatic Lightweight Block & Panel Production Line

With over 60 years of development, Chinese autoclaved aerated concrete industry has seen a steady and consistent growth. Until to now,the number of AAC production lines in China is over 2,000.Topics related to carbon emissions have attracted global attention and are discussed in an increasing number of countries worldwide. At present, it is increasingly necessary to promote green development of urban and rural construction, to vigorously develop energy-saving and low-carbon buildings, and to accelerate the optimization of energy consumption of buildings. The carbon footprint of the construction industry is a key parameter in achieving a low overall national carbon footprint. In this regard, China's AAC market still has a huge potential for making a significant and positive difference.

Teeyer’s standardized 6m*1.2m*0.6m full-automatic lightweight AAC block & panel production line

Taizhou Jintai Environmental Thermal Power Co., Ltd. is located in Binjiang Industrial Park, Taizhou City, Jiangsu Province, is a modern environmental friendly,high-tech private joint-stock enterprise, which was founded in 2002.

The company takes "energy saving and consumption reduction, cost reduction and efficiency increase" as the business principle. In order to dispose the waste produced by the thermal power production line,building the energy cycle industry chain of resource utilization, material recycling and rebuilding together with the thermal power production line. Jintai Company cooperated Teeyer Intelligent, to build the leading full-automatic lightweight AAC block&panel production line in China, with 350,000 square meters annual output of both AAC blocks and panels, which is put into production since 2021.

Double-station and dry material conveying tilting table, improving the production efficiency,ensuring the tidiness of the workshop

Considering material recycling and energy saving, Teeyer installed an integrated collection device at the top of the vertical cutting machine and a dry material conveying device under the tilting table, to ensure the efficiency of waste recycling. Compared with the previous set-up, this change will avoid the slurry splash phenomenon during the process of tilting and provide a better working environment. In addition, it will assist in improving the stability of equipment operations.

The cake auto-shifting technology of the tilting table solves problems including reciprocating crane operations and long-time waiting for the handling of the cake. It greatly improves the production efficiency of the whole AAC block and panel production line – the production cycle is shortened by 1min/mould - and improves the cutting section. The overall production capacity is increased by 25%.

The automatic steam distribution system highlights the automation of AAC production line,

improving the safety of equipment.

The autoclave steam distribution system requires less skills for operators and the operation is quite simple. Operators only need to close the door of the autoclave, then select functions on the computer in accordance with a predetermined solutions (e.g., block type, thin panel type, thick panel type), and press a button to start the corresponding autoclave number. The system also improves the security of the steam distribution. A safety interlocking procedure is provided between the steam distribution valve and the autoclave door opening device, with an extra light alarm device. If the door is not closed well, steam will be prohibited to enter, and as long as steam is present, the door cannot be opened.

The residual steam recovery system can be linked with the automatic steam distribution system to create an automatic operation and reduce human cost.

Energy saving and emission reduction are significant target of Teeyer’s modern AAC automatic production line  

After adopting the autoclave residual steam recovery system, the autoclave energy saving index reaches more than 20%

The hot water can be used to maintain a regulated environment in the pre-curing room and the steel bar drying room, without using fresh steam.

The residual steam recovery system can also facilitate the utilization of condensed water that is discharged from the autoclave. At the high temperature stage, the heat in the condensed water is recycled for heating the preconditioning room and the curing room before autoclaving.    

Jintai project was accomplished during the outbreak of COVID-19 pandemic in China, which caused a severe challenge for the whole implementation of the project.

During the pandemic, the brothers of the project service team overcame difficulties such as physical isolation,COVID-19 test, staff fever and illness, and the logistics team also worked hard and successfully completed the delivery, installation, commissioning, and production of the equipment, which was highly recognized and satisfied by the management team of Jintai company.