Novel high-efficiency drying cylinder

Abstract

The invention discloses a novel high-efficiency drying cylinder. The novel high-efficiency drying cylinder comprises a cylinder body, and an operation side shaft head and a transmission side shaft head which are arranged on the two sides of the cylinder body respectively. An inward-pull cylinder is arranged between the operation side shaft head and the transmission side shaft head in the cylinder body. An operation side cylinder cover and a transmission side cylinder cover are arranged on the two sides of the cylinder body respectively. A gas inlet pipe is arranged in the operation side shaft head. A groove structure is formed in the inner wall of the cylinder body, internally provided with a siphon and further provided with a condensate water branch pipe from the siphon to the inner portion of the inward-pull cylinder. A condensate water collecting pipe is arranged in the inward-pull cylinder. A condensate water discharge pipe is arranged in the transmission side shaft head. The gas inlet pipe, the siphon pipe, the condensate water branch pipe, the condensate water collecting pipe and the condensate water discharge pipe are communicated with one another in sequence. The cylinder body is made of steel. A high-hardness wear-resistant metal coating is arranged on the outer surface of the cylinder body. The efficiency of a paper making machine is brought into full play, production efficiency, product quality and device safety are improved, and steam consumption and electricity consumption of each ton of paper are lowered.

Description

technical field [0001] The invention relates to a drying cylinder device, in particular to a drying cylinder device of a paper machine. Background technique [0002] Since the existing paper machine is installed, it is often troubled by the tadpole pattern of the dryer, which seriously affects the production efficiency. Although many improvements have been made, such as removing sand, adding adhesives, disabling some rollers, decelerating, etc., they can only slow down the damage of the cylinder surface, but cannot increase the grinding cycle. Basically, grinding is required every year. once. Since the dryer is a pressure vessel, there is a minimum wall thickness limit, and the number of grinding times is very limited. If it continues to be used, it can only be used for at most 3 years and the pressure level of the dryer must be reduced, which will affect the paper machine. Drying capacity, which affects the efficiency of the paper machine. Moreover, three months before t...

AI Technical Summary

Problems solved by technology

[0002] Since the existing paper machine was installed and produced paper, it is often troubled by tadpole lines in the dryer, which seriously affects production efficiency

Although many improvements have been made, such as removing sand, adding adhesives, disabling some rollers, decelerating, etc., they can only slow down the damage of the cylinder surface, but cannot increase the grinding cycle. Basically, grinding is required every year. once

Since the dryer is a pressure vessel, there is a minimum wall thickness limit, and the number of grinding times is very limited. If it continues to be used, it can only be used for at most 3 years and the pressure level of the dryer must be reduced, which will affect the paper machine. Drying capacity, which affects the efficiency of the paper machine

Moreover, three months before grinding is approaching, a large number of holes affect the quality of the base paper. The largest hole on the paper surface reaches 10mm, which has a great impact on the production of the workshop and has to bear a great quality risk.

There was an explosion accident in the drying cylinder, which proved the quality problems and safety hazards in the existing drying cylinder products

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