Since the
beginning of the 21st century, with the further deepening of China's reform and
opening-up policies, the country's economic development has been progressing at
an unprecedented rate, resulting in remarkable achievements that have captured
global attention. During this period, the daily glass industry has blossomed
like spring flowers, undergoing rapid development. Several well-established
enterprises have demonstrated promising trends in terms of both equipment
levels and production capacities. By 2008, China's production of daily glass
products had reached an impressive 1.4457 million tons. However, there still
exists a significant number of enterprises within the industry with relatively
low overall standards, leading to a lack of cohesive development.
In recent years,
significant changes have occurred in the international glass container
industry, particularly the wrapping film sector. The demand for glass
containers, both domestically and internationally, continues to rise. However,
the expectations for product quality have grown higher. These shifts have
presented new development opportunities for the daily glass industry.
Consequently, effectively addressing these emerging trends, defining the future
direction, and further elevating the industry's overall standards are critical
challenges at present.
The following
discussion will delve into the future development of China's glass container
manufacturing processes and configurations. This collective exploration aims to
stimulate rapid and effective progress in the industry's technological
advancement. Developed countries with advanced levels of the daily glass
industry have already established mature developmental paths. In light of this,
China can adopt a "learn from the advanced, adapt to the local"
perspective, selectively assimilating their experiences and innovating our own
development. The ultimate goal is to establish China as a leading nation in the
daily glass industry.
**Batching
Process**: The selection and preparation of glass raw materials adhere to
strict, standardized scientific processes that are pivotal to the quality of
glass products. Variables such as particle size, purity, specifications of pure
glass, cleanliness, impurity content, and color directly influence glass
quality. The accuracy and stability of raw material selection and batching
procedures are fundamental to product quality, environmental preservation, and
civilized production. Many enterprises tend to overlook the batching process
during their investment phases, particularly when labor costs are low. This
oversight can result in inaccurate material composition and measurement, uneven
blending, compromised glass liquid quality, substantial environmental pollution
from dust, and latent occupational health hazards. Automated batching systems
are already widely used internationally, and China possesses mature experiences
in this realm. For large-scale glass production operations with the necessary
conditions, a gradual transition to computer-controlled batching systems is
recommended to replace manual batching.
**Glass Furnace**:
The glass furnace serves as the heart of the glass industry and is the primary
energy-consuming equipment. Currently, flame furnaces are predominant in China,
exhibiting relatively high energy consumption (typically around 300-500 kg of
standard coal per ton of finished product, compared to the international
advanced level of around 150-200 kg of standard coal per ton of finished
product). The melting rate is low, and the cycle melting rate is similarly low.
These factors are influenced by enterprise product structures, furnace size,
and rational production line configurations. In terms of energy sources, China
mainly relies on coal and oil, which yield low heat utilization efficiency and
significant pollution. Conversely, international practices commonly embrace
clean energy sources such as natural gas and electricity, resulting in higher
heat utilization efficiency and reduced pollution. Even enterprises using oil
as fuel often adopt technologies like electric boosting and pure oxygen combustion
to enhance thermal efficiency, increase melting rates, and minimize pollution.
Furnace lifespans in China typically range from 4 to 6 years, whereas
international advanced levels tend to be around 10 years, with some furnaces
surpassing 12 years. Of course, while refractory materials and initial
investment costs might be higher, the overall cost-effectiveness might be
superior compared to the investment required for furnace shutdowns and major
repairs every 4 to 5 years. China should tailor its approach, incorporating
targeted insights from international advanced experiences to suit its national
context. Automatic control systems for glass furnace operations are
indispensable for improving melting quality, extending furnace lifespans, and
optimizing energy efficiency and emission reductions. It's notable that the
majority of China's furnaces lack automatic control systems, whereas foreign
counterparts widely implement automated control technologies for the glass
melting process.
**Forming
Process**: The forming process has a significant impact on product quality. In
manual techniques, such as glassware and specialized shaped bottles,
limitations arise due to relatively low cultural literacy among industry
personnel. This impacts both the technical and artistic components of the
products. Among machine operators, variable technical proficiency levels exist.
Many possess surface-level knowledge of forming techniques and the entire glass
manufacturing process, lacking comprehensive understanding. This impedes the
elevation of product quality and pricing, resulting in limited value addition.
Enterprises urgently need to strengthen their internal capabilities through
enhanced training, thereby comprehensively improving employee technical
proficiency and skills. By responding to market demands, diversifying product
varieties, increasing technological investments, emphasizing product quality
improvement and innovation, China can significantly enhance its international
market position in the daily glass industry.