HEAT DISPERSING SYSTEM

Dewatering Area

• The pulp with a certain concentration is concentrated to about 30%in the dehydration area,so that the pulphas a higher concentration after entering the heating area,and is completely  washed at the same time.As two kinds of different concentration equipment,twin wire press and single screw press  have their own advantage sand disadvantages  in equipment cost,pulp concentration control and operation cost,which can adapt to different working conditions.
• High concentration is very important for fast and economical heating of pulp in the heating area, as well as for achieving the best heat dispersion effect.

Heating Area

• The heating area is designed as a closed pressure vessel,which is sealed by a screw plug to prevent steamfrom escaping,keep steam consumption low,and flexibly adjust the operating temperature,which can reach120°C and provide uniform feeding.
• The friction force produced by the plug screw can produce the pre dispersion effect and  improve thedispersion ability.
• After that,the crushing screw decomposes the plug to ensure the uniform and effective heating of the pulp in the preheating area,increase the surface area of the pulp,make allthe impurities  and fibers reach thetemperature required by the thermal dispersion,and minimize the degree of freedom of the waste pulp,so as to improve the dispersion effect.
• The closed heating zone can be connected with different types of dehydration systems.
• Due to the high temperature,the heating area can also be used as a bleaching reactor,or as a chemical mixer.

Heat Dispersion Area

• Compared with other heat dispersing systems,the disc type heat dispersing machine  belongs to the disc type heatdispersing.This type of heat dispersing can obtain better dispersing effect and is more convenient for maintenance.
• The pulp entered by the feeding screw is ground and softened by the mechanical and  physical action of thebroom disc teeth under the conditions of high concentration   (28-32%)and high temperature(90-120 °C)to make the heat The melt,stickies and ink are peeled  from the fibers and dispersed into tiny particles that are invisible to the naked eye,thereby   improving the strength characteristics of the pulp and the surface characteristics of the paper.
• Energy consumption isas low as 35-40 kW /ton pulp.
• The  heat dispersing machine is equipped with different specifications of grinding plates   to meet thedispersing requirements of different working conditions.
• The adjustment accuracy of the grinding disc gap can reach 0.01mm,ensuring the stability  of the pulp quality.
• Two heat dispersing machines with pulping structure can ensure flexible adjustment of  the  thermal dispersionpulping  concentration between 4-20%.