Effects and measures of flocculants in sludge KENKI DRYER / Sludge dryer, Slurry dryer, Waste dryer

KENKI DRYER which can dry sticky and adhesive materials that no other dryer can is an innovative drying apparatus having unique technologies with 2 patents in Japan, 9 patens in 7 abroad countries, 11 patents in total.  Please consider about KENKI DRYER as dryer for organic waste with high moisture content, sludge dryer, slurry dryer, dryer for digestive fluid from the methane fermentation and waste recycling dryer.
It has 11 patents in 8 countries which are Japan, Taiwan, the Unites States, France, Germany, the United Kingdom, Swiss and Canada.
Since amount of saturated steam used as heat source of KENKI DRYER is small, there is no need for installing new boilers, and decarbonization and fuel cost reduction is possible by using redundant steam from the plants.

At wastewater treatment plants, flocculant is used at settling tank and at dehydration process
to bind and settle particles in water. In flocculant, there are inorganic type and polymer type and both of them are chemical agent to bind particles. By coagulating and flocculating particles, clusters called floc are generated to be settled.
In sludges discharged from wastewater treatment plants after dehydrated process. large amounts of flocs made by flocculants coagulating and flocculating particles are contained, therefore, drying process is not easy while sludge becomes lumps and heat hardly reached inside.
KENKI DRYER smashes the materials to be dried into small pieces, and make heat to reach inside of them easily.
Feeding device smashes the materials and conveys them to the dryer’s main body as heating and drying same time. In the main body, the materials are repeatedly smashed and agitated while being heated and dried, and conveyed forwards. Materials smashed into small pieces are dried evenly and steadily by getting heat reached inside.
Although most of sludge dryers are often stopped by accidents caused by clogging with strong stickiness and adhesiveness. KENKI DRYER forcibly peels materials adhered on the blade off by other blades attached in the opposite side by rotating the blades, therefore, the materials never clogged in the dryer, surface of the blades are always kept clean by being wiped up, and drying efficiency never goes down even with sludge which contains flocculants and has strong stickiness and adhesiveness.
No trouble occurs while running and it continuously runs for 24 hours.

Three major features KENKI DRYER / Sludge dryer, Slurry dryer, Heat pump sludge dryer

Drying process KENKI DRYER / Sludge dryer, Slurry dryer, Heat pump sludge dryer

Four drying mechanisms KENKI DRYER / Sludge dryer, Slurry dryer, Heat pump sludge dryer

Why do we dry sludge which is difficult to be treated? / Sludge dryer, Slurry dryer, Heat pump sludge dryer

KENKI DRYER has three main characteristics. They are 1) Any materials can be dried as expected including sticky, adhesive and viscous materials and raw material slurry that no other company can deal with, 2) dried material can by recycled or utilized as raw materials because of its low-temperature drying method, and 3) there is no need to assign operator since its continuous operating system makes 24 hours unattended operation possible.

Products

The unique and original drying mechanism of KENKI DRYER is also International Patented Technology. Because 4 drying mechanisms which are crashing drying, agitation drying, circulation drying and indirect drying work simultaneously and add heat to material being dried repeatedly and continuously, inner part of the material is dried thoroughly and quality of discharged material after drying is stable. This series of drying mechanisms prevents agglomeration which causes insufficient drying from feeding process of the material into the dryer until discharging process after drying completed. Various ingenuities to conduct heat surely into inner part of the materials are exercised and stable heating and drying are proceeded continuously.

Methods

One of the International Patented Technology that KENKI DRYER has is a self-cleaning structure called Steam Heated Twin Screw technology (SHTS technology). No matter how materials are sticky, adhesive and viscous is, they can be dried without clogging inside of the dryer because of this unique structure that no other products has.
For example, even materials stuck to the blades of one screw, blades of the other screw in the dryer’s body forcibly peels the materials off as they rotate. Since the blades rotate by peeling the material off each other, any sticky, adhesive and viscous material does not adhere to the blade, and the blades continue rotating, peeling, agitating and heating material without stopping while they carries material further. Also, since surface of blades are always renewed and kept clean, heat near the blades is not blocked and it is conducted directly into the materials.

Self-cleaning screw

Even KENKI DRYER uses only saturated steam as its heat source, it is outstanding in safety and hygiene point of view with its unique drying mechanism based on combined use of conductive heat transfer method and heated air method. Since steam is a stable heat source, quality of discharged material after drying is also stable and equable. Maximum allowed steam pressure is 0.7Mpa and adjustment of steam pressure, adjustment of drying temperature in other words, can be easily done. Saturated steam is commonly used in many factories so that it can be said as a familiar and handy heat source. In comparison with drying methods using burner or hot blasts, saturated steam method is an indirect drying applying heat exchange via pipes that steam is passing through, therefore, it hardly burns the materials and is outstanding in safety and hygiene point of view.

Heat source, Steam