Periodic blowdown of industrial boilers is to make the boiler water quality meet the required standards, reduce the adverse effects of scale on the boiler, and keep the impurities in the water within a certain concentration. It is necessary to continuously remove the salt and alkali content from the boiler. Larger boiler water and deposited residues, sludge and various sediments allow the safe operation of industrial boilers and prolong the service life of industrial boilers.
For industrial boilers, the blowdown is divided into two types: continuous blowdown and regular blowdown. Zhengzhou Fangkuai Boiler Factory will give you a brief introduction to these two blowdown methods.
1. Continuous blowdown
Continuous blowdown can remove part of the salt dissolved in the boiler water to maintain a controllable amount of salt and alkalinity in the boiler water, and prevent excessive concentration from affecting the quality of boiler steam. Generally, the continuous blowdown outlet is installed at 200-300mm below the normal water level of the steam drum. The boiler water is continuously heated and concentrated, so that the salt is collected on the surface of the boiler water. The continuous outlet is installed at the place with the highest salt content in the boiler water. In order to discharge high-concentration salt water, a new water supply treatment is carried out.
2. Regular sewage discharge
Regular sewage discharge is mainly to remove rust slag, calcium, magnesium and other flocculent sediments that have not been desalinated. Reduce its adhesion on the boiler wall and improve the thermal efficiency of the boiler. It is generally intermittent, also known as intermittent blowdown or bottom blowdown. The nozzle for regular blowdown is generally set at the lowest point of the boiler water cycle. The fixed discharge time is intermittent. Generally, the discharge is carried out when the boiler load is low. The fixed discharge discharge is large. Generally, only a short period of time can be used to achieve the purpose of sewage discharge, usually 0.5-1 minutes, depending on the boiler water quality. , But it should be avoided for a long time to schedule so as not to affect the normal circulation of boiler water. The regular work of chemical operation is selected in each post-night shift. The correct and reasonable blowdown device can discharge impurities, sludge, scale, etc. in the boiler water, control the alkalinity and salt content of the boiler water, ensure the cleanliness of the boiler heating surface, ensure that the boiler produces high-quality steam, and extend the boiler In the service life, the waste heat of the boiler is fully utilized, which can achieve the effect of energy saving.
September 24–27, 2026 | Booth 4A27 | Cairo International Conference Center (CICC), Egypt
Dabonn Energy is excited to announce its participation in EGYPT STITCH & TEX EXPO 2026, one of the leading textile machinery and technology exhibitions in North Africa and the Middle East. The exhibition will take place from September 24 to 27, 2026, at the Cairo International Conference Center (CICC) in Nasr City, Cairo, Egypt.
Visitors are warmly invited to Booth 4A27, where Dabonn Energy will present its latest industrial boiler technologies and energy-efficient steam solutions designed specifically for the textile industry.
Steam plays a critical role throughout textile manufacturing, including dyeing, printing, bleaching, washing, drying, and finishing. A reliable boiler system directly affects production efficiency, energy consumption, and operating costs.
At EGYPT STITCH & TEX EXPO 2026, Dabonn Energy will showcase a range of industrial boiler solutions engineered to meet the demanding requirements of textile factories, including:
Our engineering team will provide professional consultation to help visitors select the most suitable boiler system based on production capacity, fuel availability, steam demand, and energy-saving goals.
As textile manufacturers continue to pursue higher efficiency and lower operating costs, energy-saving boiler systems have become increasingly important.
Dabonn Energy integrates advanced combustion technology, intelligent control systems, and optimized heat transfer designs into every boiler solution. These technologies help customers achieve:
Whether powered by natural gas or biomass fuels, our industrial boilers are designed to deliver dependable performance while supporting sustainable manufacturing.
During the exhibition, visitors will have the opportunity to meet directly with Dabonn Energy's technical and sales specialists to discuss a wide range of industrial heating solutions.
Topics include:
Our team will also share successful application cases from textile manufacturers across different countries and explain how efficient boiler systems can improve productivity while reducing energy costs.
Egypt continues to strengthen its position as an important textile manufacturing hub in Africa and the Middle East. With increasing investment in textile production, the demand for reliable and energy-efficient steam generation equipment is also growing.
By participating in EGYPT STITCH & TEX EXPO 2026, Dabonn Energy looks forward to establishing new partnerships with textile manufacturers, engineering companies, distributors, and industrial investors throughout Egypt, North Africa, and neighboring regions.
We remain committed to delivering high-quality industrial boiler equipment backed by professional engineering support and comprehensive after-sales service.
We sincerely invite all visitors attending EGYPT STITCH & TEX EXPO 2026 to stop by Booth 4A27 and explore how Dabonn Energy can help improve the efficiency and sustainability of your textile production.
Exhibition: EGYPT STITCH & TEX EXPO 2026
Venue: Cairo International Conference Center (CICC), Nasr City, Cairo, Egypt
Date: September 24–27, 2026
Booth Number: 4A27
We look forward to meeting customers and partners from around the world and discussing innovative industrial boiler solutions for the future of the textile industry.
Recently, Zhengzhou Fangkuai Boiler Sales Co., Ltd. traveled to Dhaka, the capital of Bangladesh, to attend the Bangladesh International Textile, Knitwear & Garment Industry Exhibition (BTKG 2026). It showcased industrial thermal equipment and system solutions adapted to the whole process of textile printing and dyeing, actively expanding the South Asian market.
Bangladesh is an important global producer and exporter of textiles and garments. As a pillar local industry, the textile sector has long-term and strong demand for high-efficiency, stable and energy-saving industrial boilers and thermal equipment, with broad market potential. This exhibition participation is an important measure for Zhengzhou Fangkuai Boiler Sales Co., Ltd. to advance its internationalization strategy and further explore overseas markets.
Relying on its technological accumulation and manufacturing advantages in the field of thermal energy equipment, the company provides targeted thermal energy solutions for local textile, printing and dyeing, garment manufacturing and other industries, helping enterprises improve production efficiency and reduce operating costs. In the future, Zhengzhou Fangkuai Boiler Sales Co., Ltd. will continue to focus on overseas market demands, continuously optimize its product and service system, facilitate the high-quality development of the global textile industry with professional and reliable products, and steadily enhance the brand’s competitiveness and influence in overseas markets.
Trust stems from quality
At the beginning of the new year, Fangkuai Boiler and a leading domestic new energy company have reached another important cooperation, successfully signing an order for a total of 500 steam tons.
