Roller for wood dust dryer

Abstract

The invention discloses a roller for a wood dust dryer. The roller comprises a shell which is provided with a feeding hole and a discharging hole, wherein a hot air pipe provided with a hot air inlet and a hot air outlet is arranged in the shell; the pipe wall of the hot air pipe is provided with a plurality of through holes; the shell is a double-layer shell which comprises an inner shell and an outer shell; a space is formed between the inner shell and the outer shell; the front end of the outer shell is provided with an air inlet communicated with the space; and the back end of the shell is provided with an exhaust port communicated with the space. The roller provided by the invention has the advantages of high drying speed and large amount of wood dust dried at one time.

Description

technical field [0001] The invention relates to the technical field of sawdust drying, in particular to a drum used for sawdust dryers. Background technique [0002] When using wood chips to make various products, it is necessary to dry the wood chips first to reduce the moisture content to the required range before proceeding to the next step of processing and utilization. Now many people use natural drying to dry the wood chips using sunlight. Drying, evaporating the water in it to make it meet the requirements, the cost of natural drying is low, and the operation is relatively simple, but natural drying takes a long time, requires a relatively large site, is greatly affected by natural conditions, and has poor stability. The amount of dried sawdust is not large, which cannot meet the needs of large-scale production and processing. [0003] Therefore, people use dryers to dry wood chips. Compared with natural drying, it occupies a smaller area and has a shorter drying tim...

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Problems solved by technology

[0002] When using wood chips to make various products, it is necessary to dry the wood chips first to reduce the moisture content to the required range before proceeding to the next step of processing and utilization. Now many people use natural drying to dry the wood chips using sunlight. Drying, evaporating the water in it to make it meet the requirements, the cost of natural drying is low, and the operation is relatively simple, but natural drying takes a long time, requires a relatively large site, is greatly affected by natural conditions, and has poor stability. The amount of dried wood chips is not large, which cannot meet the needs of large-scale production and processing

[0003] Therefore, people use dryers to dry wood chips. Compared with natural drying, it occupies a smaller area and has a shorter drying time. The existing drying of wood chips is carried out in a drum, and the wood chips are put into the drum. , the drum is rotated, and hot air is used to dry the sawdust in the drum, but the existing dryer drum also has shortcomings: firstly, the drying time is relatively long, and secondly, although the diameter of the drum is relatively large, the When drying, the heat exchange efficiency between wood chips and hot air is low, and the amount of wood chips that are dried is not large. Once too many wood chips are added, it will cause uneven drying and longer drying time.

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