Pulp digester for paper making
Hem / Teknik & Digitalt / Pulp digester for paper making
Therefore, they are looking at what is called the “total fiber management” approach. This debarking drum rotates and strips all of the bark away from the logs. According to your requirements, we can customize paper pulp cooking digesters in different size and in different materials.
Super batch cooking production line working principal
What makes CNBM super batch cooking production line different is after the impregnation, we use our own way to process the hot black liquid.
This results in a more uniform cooking of the chips and an increase in the amount of useable pulp produced.
The digester is an integral machine in the making of paper. The most advanced batch-cooking technology -displacement cooking process is usually adopted, as it requires low cost and high-quality pulp is obtained. The sulphite digester utilizes calcium acid sulphite to aid in the process, which is usually referred to as the acid process.
On its inner wall, there is a cylindrical filter and liquid suction port installed. Meanwhile, relevant chemical consumption drops down, which can not only reduce the environmental pollution, but also lower the paper cost. It is estimated that more than US$ 60,000 Mn worth of pulp is to be sold across the globe by end of 2026.
super batch cooking production line
paper pulping system
CNBM provides you with paper pulp equipment all-around
HOME > products > paper pulping system
- Offering all the paper pulping equipment of the super batch cooking production line as well as the line itself.
- Reducing steam consumption from 2-2.5ton to 0.6-0.8ton for producing 1ton pulp.
- Excellent bleaching properties because of the low Kappa value, high strength, oxygen delignification and other good production conditions.
In 2007, according to the conventional cooking characteristics, our company developed a super batch cooking production line with an annual output of 300,000t.
Generally, non-wood fiber, wood shaving and some materials with low density are suitable for wet-method material preparation.
The advantages of using this continuous tubular digester are -
- Stable electricity and steam consumption and no peak load
- Even pulp quality and high coarse and stable pulp yield
- Flexible liquid ratio adjustment, less pollution
- High degree of automation, easy to adjust the process, high production efficiency, saves cost
- Continuous production
- Decrease the energy and chemical consumption, reduce cost of waste liquor recovery and pollution.
Market Insights :
As per a recently compiled report by Transparency Market Research (TMR), an average expansion has been projected over the forecast period, 2017 to 2026, for the global pulp market.
According to your requirements, we can customize paper pulp cooking digesters in different size and in different materials.
30m2, 45m2, 60m2, 80m2, 100m2, 120m2 series of vacuum pulp washer with different technologies. What's more, super batch cooking production line achieves zero emission waste water and reduces the emission of bleaching waste water.
Super batch cooking production line we offer
CNBM offers all the paper pulping equipment of the super batch cooking production line as well as the line itself.
Your privacy is protected. The main materials include carbon steel, 316L steel, etc. There are two types of digesters: sulphite and sulphate. Meanwhile, super batch cooking production line can reduce SO2 emission (sulfur dioxide) and soot aggregates from the alkali recovery boiler by 15%. Our super batch cooking technology can reduce to 0.6-0.8ton of steam consumption from 2-2.5ton for producing 1ton pulp.
This is accomplished by reducing the surface tension between the wood and the liquor, which helps the chips become more thoroughly wetted by the chemicals. Super batch cooking production line adopts an efficient pulping technology which can save about 60% of cooking steam consumption. Low relevant chemical consumption, which not only reduces environmental pollution, but also lowers the cost.
Here, the logs are reduced to handheld sized chip pieces.
Entering the Digester
After the logs are made into wooden chips, they are placed inside the digester where they are chemically cooked for several hours in order to make them softer. Good production conditions.
The Major corollary equipment we need to form a super batch cooking production line is as follows:
- Gigester
50m3, 75m3, 110m3, 135m3, 175m3, 225m3, 250m3, 400m3 series of digesters with different technologies. So, in general, many related chemical pulp machines, such as pulp digester, blow tank, disc filter, twin roll press, vacuum drum washer, and other pulp machines and related parts, are required for the whole set of chemical pulping production line.It can delignify rapidly under high temperature, and it can lower the hardness of, improve the yield and tearing strength of paper pulp.