Pulverized coal dryer

A dryer and drying technology, applied in the direction of drying solid materials, drying solid materials without heating, drying, etc., can solve the problems of low drying efficiency of pulverized coal, and achieve the effect of improving life expectancy, low failure rate and improving moving speed.

Active Publication Date: 2015-06-03
苏州盛泽科技创业园发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is: to overcome the technical problem of relatively low online drying efficiency of pulverized coal in the prior art, and to provide an improved pulverized coal dryer

Method used

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  • Pulverized coal dryer
  • Pulverized coal dryer
  • Pulverized coal dryer

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Embodiment Construction

[0038] The present invention is described in further detail now in conjunction with accompanying drawing. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.

[0039] Such as Figure 1~4 As shown, the present invention is a pulverized coal dryer, including a negative pressure cavity, a drying cavity 11 and a drive assembly, the negative pressure cavity is arranged on the upper part of the drying cavity 11 and communicated with the drying cavity 11;

[0040] A piston assembly is included in the negative pressure cavity, and the piston assembly includes a piston cylinder 2 whose bottom communicates with the dry cavity 11. A piston 1 is slidably connected in the piston cylinder 2. A one-way valve A3 is provided on the side wall at the bottom of the cylinder body 2;

[0041] Described drying cavity 11 inside is provide...

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PUM

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Abstract

The invention relates to a pulverized coal dryer. The pulverized coal dryer comprises a negative-pressure empty cavity and a drying empty cavity, wherein the negative-pressure empty cavity is arranged on the upper part of the drying empty cavity and is communicated with the drying empty cavity; the negative-pressure empty cavity comprises a piston component comprising a piston cylinder body the bottom of which is communicated with the drying empty cavity; the piston cylinder body is internally connected with a piston in a sliding mode; the side wall of the bottom of the piston cylinder body is provided with a unidirectional valve A; the drying empty cavity is internally provided with a pulverized coal grinding component; the top of the drying empty cavity is provided with a charge hopper; the bottom of the drying empty cavity is provided with a discharge hopper; the charge hopper is connected with a seal valve A; the discharge hopper is connected with a seal valve B; a plurality of discharge holes are densely distributed in a grinding plate; the drying empty cavity and the piston cylinder body are communicated via a unidirectional valve B. Water drops in the pulverized coal and other mixed gases are separated via a negative-pressure type evacuation structure, and are discharged out after separation, and the time consumption is short in the whole drying process.

Description

technical field [0001] The invention relates to a pulverized coal dryer, which belongs to the field of fluidized boiler auxiliary equipment. Background technique [0002] The automatic sample preparation of coal is the current development direction. [0003] The general coal sample is crushed, mixed, shrunk, dried, pulverized and other processes, and finally made into a general analysis test coal sample with a particle size of less than 0.2mm. The sample preparation process is divided into several stages: making 13mm sample - making 6mm sample - making 3mm sample - making 0.2mm sample. The entire sample preparation process is unmanned and completed automatically, that is, automatic sample preparation. [0004] Coal sample pulverization refers to the sample preparation process from 3mm sample to 0.2mm sample. The 0.2mm sample is in powder form, with strong adhesion, and is easily adsorbed on the surface of the powder making machine. Powder samples with high water content ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C21/00F26B5/04
CPCB02C21/00C10L5/00F26B5/04
Inventor 胡晓荣俞娟胡瑜
Owner 苏州盛泽科技创业园发展有限公司
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