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Novel wood chip dryer

A technology of dryer and sawdust, applied in dryer, drying, wood particle drying and other directions, can solve problems such as short drying time, low heat exchange efficiency, dryer explosion, etc., and achieve controllable drying temperature , The effect of uniform quality of wood chips and uniform drying temperature

Active Publication Date: 2017-02-22
庄德恩
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When using wood chips to make biomass fuel particles, it is necessary to dry the wood chips first to reduce the moisture content to the required range, evaporate the water in it, and make it meet the requirements. The cost of natural drying is low, and it is relatively easy to operate. Simple, but natural drying takes a long time, requires a relatively large site, is greatly affected by natural conditions, has poor stability, and the amount of sawdust dried each time 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

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Example 1: Reference figure 1 , a new type of sawdust dryer, including a drum 1 with heat preservation function, a left end cover 2 sleeved on the left end of the drum, a right end cover 3 sleeved on the right end of the drum, and a rotating mechanism 7 that drives the drum to rotate, and also includes Circulating heating device 4, said circulating heating device 4 includes a heat pipe 4-1 arranged inside the drum 1 and a heat supply device 4-2 connected to both ends of the heat pipe 4-1, and the heat supply device 4-2 is connected to the heat pipe 4-1. A circulation loop is formed between the heat conduction pipes 4-1, and the circulation loop is filled with a heat-conducting medium, and a circulating electric pump 5 is provided on the circulation loop, and the circulating electric pump 5 drives the heat-conducting medium to circulate in the circulation loop.

[0036] refer to figure 2, the heat pipe 4-1 sequentially includes a heat conduction medium feeding section ...

Embodiment 2

[0047] Example 2: Reference image 3 , this embodiment is basically the same as the embodiment, the only difference is: the spiral coil and the drum 1 are vertically arranged.

[0048] During work, the screened materials are discharged from the feed channel 2-2 to the storage chamber 2-2-1, and the material shifting mechanism 10 in the storage chamber 2-2-1 dials the materials into the left end cover 2. In the blanking chamber 2-1, the air supply device 9 blows the filtered hot air from the chimney of the heating device 4-2 boiler into the blanking chamber 2-1 from the air inlet channel 2-3 at the same time, and the material is During the process, the distributing part 11 screens and separates them, and the larger diameter and heavier materials fall on the spacer mesh 12 under the distributing part 11, while the smaller and lighter materials fall under the action of hot air. Carry out pre-drying and screening, because drum 1 rotates under the effect of rotating mechanism 7, a...

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Abstract

The invention relates to the technical field of wood chip drying, in particular to a novel wood chip dryer. The novel wood chip dryer comprises a roller with an insulation effect, a left end cover for covering the left end part of the roller, a right end cover for covering the right end part of the roller, and a rotating mechanism for driving rotation of the roller. The novel wood chip dryer further comprises a circular heating device; the circular heating device includes a heat guide pipe arranged in the roller, and a heating device connected with two ends of the heat guide pipe; a circulating loop is formed between the heating device and the heat guide pipe; a heat conducting medium is filled in the circulating loop; and a circulating electric pump is arranged on the circulating loop for driving the heat conducting medium to circularly flow in the circulating loop. The dryer has the advantages of uniform drying temperature, controllable drying temperature, uniform wood chip mass, fast drying speed, less powder after drying, high heat utilization rate, energy conservation, environmental protection, safety and controllability.

Description

technical field [0001] The invention relates to the technical field of sawdust drying, in particular to a novel sawdust dryer. Background technique [0002] When using wood chips to make biomass fuel particles, it is necessary to dry the wood chips first to reduce the moisture content to the required range, evaporate the water in it, and make it meet the requirements. The cost of natural drying is low, and it is relatively easy to operate. Simple, but natural drying takes a long time, requires a relatively large site, is greatly affected by natural conditions, has poor stability, and the amount of sawdust dried each time 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 dried by a feeding mechanism. Put it into the d...

Claims

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Application Information

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IPC IPC(8): F26B11/06F26B21/00F26B23/10F26B25/00
CPCF26B11/0418F26B11/0431F26B21/001F26B23/10F26B25/002F26B2200/24Y02P70/10
Inventor 庄德恩
Owner 庄德恩
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