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Double-layered vibrating fluidized-bed drying-classification apparatus

A vibrating fluidized bed and fluidized drying technology, applied in drying gas arrangement, drying solid materials, heating to dry solid materials, etc., can solve the problems of uneven fluidization, high cost of exhaust gas treatment, short circuit of hot gas flow, etc. The effect of reducing investment and operating energy consumption, high coal classification efficiency, and increasing processing capacity

Inactive Publication Date: 2010-09-08
LAIWU IRON & STEEL GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] But they have the following deficiencies: 1) The air distribution plate is easy to block and leak; 2) The fluidization is uneven, and the hot air is short-circuited, resulting in poor drying effect and low thermal efficiency; 3) Poor stratification of the fluidized bed and low separation accuracy ; 4) The structure of the scraper machine is relatively complicated, and the failure rate is high; 5) The energy consumption is high, the waste heat of the tail gas is high, and the heat energy is wasted seriously; 6) The coal powder content in the tail gas is high, the subsequent tail gas treatment cost is high, and the pollution is serious

Method used

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  • Double-layered vibrating fluidized-bed drying-classification apparatus
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  • Double-layered vibrating fluidized-bed drying-classification apparatus

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Embodiment 1

[0027] Such as figure 1 , 2The double-deck vibrating fluidized bed drying and classifying device shown in and 3 includes a coal inlet 1, an upper fluidized drying and classifying chamber 2 and a lower fluidized drying and classifying chamber 7, an inclined material baffle 4, a transmission device 5, and a driving motor 6. Fine-grained coal feed pipe 8, fine-grained coal buffer and sealed hopper 9, rotary unloader 10, air distribution plate 11 of the upper fluidized drying and classifying chamber and air distribution plate 19 of the lower fluidized drying and classifying chamber, outlet Tuyere 12, air outlet 13, air-material separation chamber 14, upper driving device base 15, lower driving device base 24, feeding conduit 16, supporting steel beam 17, equalizing air box 18, air inlet 21, fine particle Coal scraper 22, gas material conduit 23, air cap 25, and large-grained coal outlet 26; wherein the coal feeding port 1 is located at the top end side of the upper fluidized clas...

Embodiment 2

[0040] The double-deck vibrating fluidized bed drying and classifying device as described in embodiment 1, its difference is that the air distribution plate 11 of the fluidized drying and classifying chamber of the upper floor and the air distribution plate 19 of the fluidized drying and classifying chamber of the lower floor have a distance of 20 from the horizontal plane. ° Angle.

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Abstract

The invention relates to a double-layered vibrating fluidized-bed drying-classification apparatus, in particular to a doubled-layered vibrating fluidized apparatus for the moisture control and classification of coking coal, which belongs to the technical field of drying equipment. The drying-classification apparatus comprises steel supports, a fluidized drying-classification chamber, a coal feed inlet, a large coal particle outlet and a sealed fine coal particle buffer bin, the fluidized drying-classification chamber is connected with the steel supports, the coal feed inlet, the large coal particle outlet and the sealed fine coal particle buffer bin are respectively communicated with the fluidized drying-classification chamber, the fluidized drying-classification chamber is a closed chamber which consists of an upper fluidized drying-classification chamber arranged on the upper part and a lower fluidized drying-classification chamber arranged on the lower part, and a pressure-equalized bellows is arranged on the bottom of the fluidized drying-classification chamber. The invention has the advantages of simple structure, little investment, high coal classification efficiency and smooth operation, and is particularly applicable to the particle size classification and humidity regulation of coking coal in the coking industry.

Description

technical field [0001] The invention relates to a double-layer vibrating fluidized bed drying and grading device, in particular to a double-layer vibrating fluidized device used for humidity control and grading of coking coal, and belongs to the technical field of drying equipment. Background technique [0002] The particle size classification technology of coking coal is subordinate to the selective crushing process, which combines crushing and screening (or wind separation) according to the hardness difference of coal types and lithofacies composition in coking coal materials, and according to the requirements of different crushing particle sizes. At the same time, it is also called lithofacies crushing process. Using this process can make the particle size of the coal material more uniform, not only eliminates large particles but also prevents over-fine crushing, and makes the inert components reach an appropriate fineness. Coking coal humidity control technology is to r...

Claims

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Application Information

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IPC IPC(8): F26B3/08F26B21/00B07B7/00C10B57/00C10B57/10
Inventor 孙业新王元顺管山吉江丹李志峰宋宪锋徐光庆魏承志郑艳李艳青闫志华李广艳
Owner LAIWU IRON & STEEL GRP
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