China News Service, Tianjin, November 7th, Title: Entering the time-honored Tianjin Millennium Salt Farm to pass down the world and seek innovation
Author Liu Juncang
Since ancient times, salt has been an important weapon of the country and plays an important role in people’s livelihood. Recently, reporters visited Changlu Salt Field, one of the four major salt fields in China, which has a thousand-year history in Binhai New District, Tianjin City, to explore the two salt characters of “Luhua Brand” edible salt and “Haijing Brand” industrial salt in the context of the new era. The inheritance and innovation of “Chinese time-honored brands”.
The edible salt automated production device of Tianjin Changlu Hangu Salt Farm Co., Ltd.Photo by Liu Juncang
“In the neat workshop, automated production, packaging, storage and other equipment are working in an orderly manner.” This is what the reporter saw at the edible salt production line of Tianjin Changlu Hangu Salt Farm Co., Ltd. (hereinafter referred to as “Changlu Hangu Salt Farm”). Wang Yong, general manager of the company, said that Luhua Sea Salt strictly implements the technical specifications for fixed-point production of edible salt and ISO9000 quality management system requirements in production, and the daily production capacity of refined edible salt is about 1,000 tons.
Changlu Hangu Salt Field is the national No. 001 designated edible salt production enterprise and the earliest sea salt original ecological origin protection area in the north. “Sun-dried salt craft” has been listed as an intangible cultural heritage in Tianjin. The annual production of sea salt is 800,000 tons.
In the 1990s, Changlu Hangu Salt Farm pioneered the vacuum salt production process using salt field saturated brine to produce Luhua brand refined edible salt. Through years of technical research, it achieved zero addition of “loosening agent”, which is a unique vacuum salt production technology in the country. . Wang Yong said that this process can retain trace elements such as calcium, potassium, and magnesium in edible sea salt to the greatest extent without destroying the main structure of amino acids, forming the unique salty and fresh taste of “Luhua Brand” sea salt.
It is understood that in recent years, Changlu Hangu Salt Farm has deeply tapped the potential of “Chinese time-honored brands”, innovated product production processes, and combined ancient salt production with modern processes. In salt, salt chemicals, bromine industry, aquaculture, salt field cultural tourism, and new The six major energy industry sectors are making efforts at the same time to continue to inherit the salt culture.
Bromine extraction and suction device of Tianjin Haijing Technology Development Co., Ltd.Photo by Liu Juncang
Salt is not only a condiment on people’s tables, but also the mother of chemical raw materials. In Changlu Haijing Group, the “Chinese time-honored brand” “Haijing Brand” industrial salt contains an average of more than 96% sodium chloride, ranking among the top sea salts in the country. More than 80% of its output is used as raw materials for two alkali. It is a Tianjin Chemical the basis of industrial development.
Industrial bromine products have special value in the development of national economy and science and technology, and are widely used in flame retardants, medicines, pesticides, industrial cleaning, refrigeration, sanitation and disinfection, film development, oil field extraction and other fields. However, in the industrial salt production process, bromine is present as an impurity.
In order to realize the full utilization of “marine elements”, Tianjin Haijing Technology Development Co., Ltd., a subsidiary of Changlu Haijing Group, uses concentrated seawater to produce bromine and waste liquid recycling to extract bromine, realize automatic control of the entire bromine production process, and improve the bromine extraction rate. Increased to more than 80%. This alone can achieve an output value of hundreds of millions of yuan every year.
This year, Changlu Haijing Group also started the development and construction of “Smart Salt Fields” and “Green Power +” to comprehensively utilize the salt fields to achieve “salt-light complementation” of above-water photovoltaic power generation, surface evaporation brine production, and underwater aquaculture. A new composite industry model. Currently, the salt-to-solar complementary project in cooperation with two central enterprises has achieved 1,000 megawatts of grid-connected power generation. (over)