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Dryer

A dryer and drying technology, which is applied in the direction of drying solid materials, drying, drying machines, etc., can solve the problem of high processing cost, achieve high drying efficiency, stable product quality, and good drying effect

Inactive Publication Date: 2008-02-20
DATANG INT CHEM TECH RESINST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, the processing cost is high, and it is not suitable for the processing of pulverized coal with large particle size

Method used

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  • Dryer

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Embodiment Construction

[0018] In order to better illustrate the present invention, the implementation and characteristics of the present invention will be further introduced below through specific examples, but it should not be construed as limiting the scope of implementation of the present invention.

[0019] As shown in FIG. 1 , the tubular dryer of the present invention includes a dryer cylinder 1 , a supporting device 8 and a driving device 5 for the dryer cylinder. The driving device 5 meshes with the teeth 11 at the end of the dryer cylinder 1 and is used to drive the dryer cylinder 1 to rotate, so that the rotation speed of the tube dryer is usually kept at 5-10 rpm. The teeth 11 are arranged on the outer circumference of the dryer cylinder 1 . Fig. 1 only shows the driving device 5 located in the feed section. An additional driving device can be provided at the outlet end as required. Said drive means comprises a power element of, for example, a steplessly variable speed motor. The dryer...

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Abstract

The utility model relates to a tubular dryer, which comprises a dryer cylinder (1), a supporting device (8) and a driving device (5) of the cylinder; wherein, an inlet for particles to be dried, an inlet pipe (4) for heating steam and an air inlet (3) are arranged at the inlet end of the cylinder; a particles outlet (10), an outlet pipe (12) for the heating steam, and an outlet (9) for gas and dust are positioned at the outlet end of the cylinder; the dryer cylinder is slantingly supported on the supporting device; the driving device (5) is arranged near the end of the dryer cylinder (1) for driving the dryer cylinder (1) to rotate; the inlet pipe (4) for the heating steam is connected with the inlet end of a central tube (16) in the middle of the dryer cylinder via mechanical seal; a plurality of holes are arranged on the wall of the central tube for the heating steam to enter the space between the outer wall of the heating central tube and the inner wall of the dryer cylinder; a baffle is arranged at the intermediate back part of the central tube; the other end of the central tube is connected with the outlet pipe for the heating steam via mechanical seal; a plurality of drying pipes (7) are positioned along the axial direction of the dryer cylinder in the space.

Description

technical field [0001] The invention relates to a dryer, in particular to a tubular dryer for lignite coal particles. Background technique [0002] my country is one of the countries rich in coal resources in the world, and the coal reserves are far greater than the oil and natural gas reserves. Among them, lignite reserves account for about 14%. Lignite is mainly distributed in Yunnan, Inner Mongolia, Northeast China, Sichuan and other provinces, and is used for direct combustion to generate electricity. Lignite contains about 20% to 50% moisture. Such a high moisture content is not only very expensive to transport, but also directly participates in the serious loss of combustion heat. Improving the competitiveness of lignite in combustion power generation is a technical problem faced by the majority of lignite power generation enterprises. Traditional hot air drying has large losses, low drying efficiency, unstable products, and cannot adapt to the drying of high-moist...

Claims

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Application Information

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IPC IPC(8): F26B17/32F26B3/00
Inventor 张毅赵景宽刘立志刘连乡张国华陈刚李春启李大用
Owner DATANG INT CHEM TECH RESINST
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