Gypsum board half-hydrated gypsum conversion device
Gypsum board half-hydrated gypsum conversion device
Recycling system for waste gypsum boards
The device is low-cost and has inexpensive running costs. The hemihydrate gypsum produced by the hemihydrate gypsum device can be used as a raw material for solidifying agents for soft ground improvement, construction sludge improvement, construction soil improvement, and dredged soil improvement. We are also developing solidifying agents that utilize hemihydrate gypsum.
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basic information
After crushing and separating the waste gypsum board, it is heated in a dihydrate gypsum semi-hydration device, transforming it into semi-hydrated gypsum. This reacts with water and initiates a hydration reaction, allowing it to be converted into recycled materials such as raw materials for solidifying agents. We also have know-how to solve issues related to gypsum, such as the leaching of hydrogen sulfide and fluoride, and re-slurrying. The semi-hydrated gypsum device uses electric indirect heating, which can increase the content of semi-hydrated gypsum. It enables heating that suppresses CO2 emissions by not using fossil fuels. The treatment method is an indirect heating type with processing capacities of 0.63 m³/h, 1 t/h, and 2 t/h. The output for the 0.63 m³/h type is approximately 78 kW, with dimensions of 3.5 m (L) × 1.0 m (W) × 2.2 m (H), making it large. The 1 t/h and 2 t/h types are space-saving and compactly designed, with the 1 t/h type being an energy-saving model with a power consumption of 30 kW.
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Applications/Examples of results
Using semi-hydrated gypsum produced by a dihydrate gypsum semi-hydration device as a raw material, a ground improvement agent mixed with lime was utilized for ground improvement of a roadbed material over a length of 20 meters. The target CBR value of 18.1% was exceeded, showing 19.9% after 3 days and 24.6% after 7 days, proving to be sufficiently effective for ground improvement of the roadbed material. The soil strength is higher than that achieved with lime alone. Products utilizing semi-hydrated gypsum include Pure Plasta SI and Ultra Solid SI, which can be used for construction sludge, dredged soil, and soft ground, and are currently being sold. We also provide consulting services for the know-how and planning of devices to convert waste gypsum boards into semi-hydrated gypsum-based solidifiers. Currently, we have know-how to address issues related to gypsum, such as hydrogen sulfide, fluoride, and re-slurrying.
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Company information
Our company is small, but we have applied for patents for electric dust collectors and sludge solidification treatment devices. Currently, we are providing environmental purification technology consulting based on cutting-edge environmental purification technology, as well as developing and planning environmental purification devices. We have developed and are selling environmental purification products such as the dioxin removal coagulant Ultra Separate SDS, the heavy metal removal coagulant Ultra Separate S300, and the turbidity coagulant Ultra Separate MC, which is effective for a wide range of applications from organic wastewater to the purification of lake water quality. We are also currently selling a dihydrate gypsum semi-hydration device that can convert waste gypsum boards after crushing and separation into recyclable raw materials. We are developing solidifying agents for soil conditioners, high-moisture sludge, and sludge containing heavy metals, utilizing the semi-hydrated gypsum produced from the dihydrate gypsum semi-hydration device, and we plan to sell these as well. We intend to continue developing products and goods based on environmental purification technology in the future.