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Apparatus and method for continuously drying bulk goods, in particular wood chips and/or wood fibers comprising hot gas cyclone

A wood fiber and hot gas technology, applied in the field of wood fiber and/or wood chips, can solve the problems of adverse effects on the effectiveness of heat exchangers, deterioration of the service life of heat exchangers, and expensive cleaning of heat exchangers, so as to improve the total heat and energy. Effects of mass productivity, suppression of formation of nitrogen oxides, and ease of operation of equipment

Pending Publication Date: 2019-10-25
克诺那普拉斯有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solid deposits such as ash inside the heat exchanger not only lead to a deterioration of the service life of the heat exchanger, but also adversely affect the effectiveness of the heat exchanger
Furthermore, once the deposits have occurred, the cleaning of the heat exchanger can be very expensive and time-consuming, since the deposits inside the heat exchanger can lead to incrustation on the surface of the heat exchanger due to the temperature inside the heat exchanger.

Method used

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  • Apparatus and method for continuously drying bulk goods, in particular wood chips and/or wood fibers comprising hot gas cyclone
  • Apparatus and method for continuously drying bulk goods, in particular wood chips and/or wood fibers comprising hot gas cyclone
  • Apparatus and method for continuously drying bulk goods, in particular wood chips and/or wood fibers comprising hot gas cyclone

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Embodiment Construction

[0086] figure 1A first example of a device of the invention implementing the method of the invention is shown. The plant comprises a tumble dryer 1, a discharge housing 2, two cleaning devices 3 operating in parallel, two heat exchangers 4 operating in parallel, a hot gas generator for combustion of the fuel / combustion air mixture (in figure 1 In the case of a multi-fuel burner 5) with a combustion chamber, a filter 6 and a chimney 7. Drying steam produced by drying eg wood chips in the drying tumble dryer 1 is introduced into the drying circuit. The drying steam fan 8 is arranged between the tumble dryer 1 and the cleaning device 3, the burner exhaust fan 9 is arranged between the filter 6 and the chimney 7, and between the heat exchanger 4 and the combustion chamber 5 a possible Regulated partial steam fan 10. The dryer 1 can be provided with a deceleration zone 11 and a metering device 12 . The inlet of the fuel into the burner 5 is not shown in detail.

[0087] The tu...

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Abstract

The present invention relates to an apparatus and a method for continuously drying bulk goods, in particular wood fibers and / or wood chips, in a dryer, wherein the drying vapors are led to a dryer circuit, in which the drying vapors are indirectly heated via a heat-exchanger (4) and are conducted to the dryer (1) again.

Description

technical field [0001] The present invention relates to an apparatus and method for the continuous drying of bulk goods, in particular wood fibers and / or wood chips, in a dryer, wherein drying steam is introduced into a dryer circuit in which The drying steam is heated indirectly via a heat exchanger and introduced into the dryer again. Background technique [0002] The manufacture of boards made of wood is basically based on the pressing of hackled wood pieces, especially wood fibers and / or chips. Particleboard, for example, consists of small wood chips of varying thickness that are pressed together with a binder under the application of high pressure to form a board. Wood fiberboard is made from wood fibers with or without additional binders. [0003] The chopped wood chips must be dried before being pressed into boards. This is usually done in so-called tumble dryers, where the items to be dried, respectively bulk items, move in heated rotating tubes. During the dryin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23J15/02F23G5/46F26B21/02F23G5/00F23G5/04F26B23/02
CPCF23G5/006F23G5/04F23G5/46F23J15/027F26B3/04F26B11/04F26B21/04F26B23/022F23G2900/50001F26B2200/24Y02P70/10F23J15/025F26B25/22F26B25/007F23G2204/103F26B21/12F26B23/028
Inventor 古恩特·亨泽尔沃尔夫冈·塞弗特
Owner 克诺那普拉斯有限公司
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