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BAOTUO Suction Former Tissue Machines

  • Source: baosuo
  • Date: 2019/07/16

For more than 20 years, Baosuo Group has been adhering to the business philosophy of "concentricity, coexistence, and perpetual innovation". As a leading equipment supplier, providing overall turn-key solutions for tissue manufacturing industry on a global scale, we have established five independent production bases with the spirit of innovation. We have built three famous brands, including Baosuo Tissue machinery, Baotuo Tissue Machine, and Baojin Technology.

Baotuo Tissue Machines have three main models: suction former machine, crescent former tissue machine and TAD hot breeze penetrating multi-function paper making machine. The tissue machine design covers 2,850 to 5,600 mm wide, 900 to 1,600 meters per minute speed, 35 tons per day to 130 tons per day production capacity, meeting the requirement of basic weight ranging from 13 to 45 GSM, allowing a wide range of raw materials and quality adaptability.

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Baotuo suction former tissue machine incorporates Sasaki's in-depth research and development experience with more than 40 years and Japan's advanced design concept, coupled with unique core technology and components, to maximize the superior performance of the paper making machine. The superiority of the tissue machine is reflected in the rigorous process of the overall production stage. Simple and intelligent operations adapt to multiple pulp types, low operating costs, and achieve high production efficiency.

In the application example of Baotuo's general contracting project, a SF10 suction former tissue machine that was put into operation in May 2017 by Hebei Baoding Huabang Paper Co., Ltd. has reached the speed of 900 meters per minute, with a 2.86 meters jumbo roll width and daily production capacity of up to 40 tons.

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The shell of the suction former adopts Japan's stainless cast steel centrifugal casting core technology, to ensure high stable physical strength during high-speed stock feeding. This is done in order to ensure the dewatering performance on the tissue sheet after acceleration, easier dehydration in a vacuum state, a lighter load, and lower energy consumption.

As certain consumables that play a vital role in the wet part of the tissue machine, the felt is the main dewatering device. Therefore the proper online cleaning method combined with daily maintenance can effectively extend the service life of the felt, between three to six months, significantly reducing the cost of consumables.

The double-breathing Yankee hood and the Yankee dryer complement each other. The whole system embodies the ultimate application of waste heat recycling technology and is an important node for saving steam energy. The hot breeze, at a temperature of 160 degrees, and blowing speed of 50 to 80 meters per second, makes the tissue drying curve more efficient. Recycling high-temperature hot breeze, draining saturated humidity water vapor, recirculating the secondary condensate of the drying cylinder to achieve maximum heat transfer performance, is the biggest highlight of energy-saving emission reduction technology application.

After the tissue sheet is creped by the doctor blade, it is peeled off from the cylinder surface and is conveyed to the winding portion through the paper feeding device to be wound into a jumbo roll. The automatic transfer mode of the paper making machine can be easily realized through the operation touch screen, and no human intervention is required, ensuring operation safety.

The rubber surface hardness of the couch roll is 35 degrees. According to the set line pressure parameters, it is pre-pressed on the main body of the felt and the main body of suction former, to form a good dewatering soft nip. 85 mesh top wire and 14 mesh bottom wire are covered on the suction former, resulting in an important water filtering structure device. Three fixed vacuum inner chambers are set into the suction former to make the white water flow back to the white pool. The wet tissue sheet is transferred to the felt while the couch roll is rotating, completing the overall transition of the entire wet sheet.

As certain consumable that play a vital role in the wet part of the tissue machine, the felt is the main dewatering device. Therefore the proper online cleaning method combined with daily maintenance can effectively extend the service life of the felt, between three to six months, significantly reducing the cost of consumables.

The vacuum touch roll, for the last process of tissue sheet dewatering, is also a core component of tissue machine. It is covered by high strength polyurethane with a hardness 95 to 98 degrees. Furthermore, it has high-temperature resistance and high line pressure. The principle of touch roll is similar to that of suction former, but touch roll has only one vacuum chamber, and the maximum dewatering effect can be achieved by finding the proper angle to ensure that the wet tissue sheet is transferred to the next core piece of the Yankee dryer to remove more water.

The double-breathing Yankee hood and the Yankee dryer complement each other. The whole system embodies the ultimate application of waste heat recycling technology and is an important node for saving steam energy. The hot breeze of the paper making machine, at a temperature of 160 degrees, and blowing speed of 50 to 80 meters per second, makes the tissue drying curve more efficient. Recycling high-temperature hot breeze, draining saturated humidity water vapor, recirculating the secondary condensate of the drying cylinder to achieve maximum heat transfer performance, is the biggest highlight of energy-saving emission reduction technology application. 

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