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Gas resistance adjusting system and method of limestone rotary kiln preheater

A gas resistance and adjustment system technology, applied in the field of limestone calcination, can solve the problems of affecting the heat transfer of the preheater and the occurrence of a large amount of crushed powder, and achieve the effect of improving utilization rate and flexible adjustment mode

Pending Publication Date: 2020-03-31
ACRE COKING & REFRACTORY ENG CONSULTING CORP DALIAN MCC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, a large amount of broken material or even powder will appear after the selected raw material reaches the preheater, which will affect the heat transfer of the preheater and even the operation of the entire system

Method used

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  • Gas resistance adjusting system and method of limestone rotary kiln preheater
  • Gas resistance adjusting system and method of limestone rotary kiln preheater
  • Gas resistance adjusting system and method of limestone rotary kiln preheater

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Embodiment Construction

[0037] The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing:

[0038] Such as figure 1 As shown in the present invention, a gas resistance adjustment system of a limestone rotary kiln preheater, the rotary kiln preheater is composed of a feeding device 1, a preheating bin 2 and a discharge device from top to bottom, and the preheating The warehouse 2 is provided with a pushing device 3; the gas resistance regulating system includes an upper material layer height regulating device 4 and a middle gas guiding device 5; wherein:

[0039] Such as figure 2 , image 3As shown, the upper material layer height adjustment device 4 includes a blanking nozzle 401, an internal blanking guide trough and an adjustment guide rod 406; the internal blanking guide trough is arranged in the feeding device 1 on the upper part of the rotary kiln preheater, and On the side close to the feed inlet, the internal unloading guide g...

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Abstract

The invention relates to a gas resistance adjusting system and method of a limestone rotary kiln preheater. The gas resistance adjusting system comprises an upper material layer height adjusting device and a middle gas guide device. The upper material layer height adjusting device comprises a discharging connecting pipe, an internal discharging guide groove and an adjusting guide rod. The middle gas guide device comprises a supporting beam, a gas guide cavity sealing piece and a sealing door. According to granularity of limestone entering into the rotary kiln preheater, the upper material layer height adjusting device is adopted for adjusting a thickness of an upper material layer, and then material layer resistance is adjusted. The middle gas guide device is adopted for adjusting the gasresistance of a middle material layer. Effective and normal operation of the system is guaranteed, fragile limestone with small granularity is fully used, a utilization rate of resources is increased,and a high economic value and environmental protection significance are possessed.

Description

technical field [0001] The invention relates to the technical field of limestone calcination, in particular to a gas resistance regulating system and method for a limestone rotary kiln preheater. Background technique [0002] Rotary kiln is an important equipment for calcining active lime. In order to improve the efficiency of the rotary kiln and reduce the power consumption of the kiln, most of the limestone rotary kilns are equipped with a vertical preheater, which uses the high-temperature exhaust gas of the rotary kiln to preheat the raw limestone. [0003] The limestone rotary kiln preheater is a block material preheater, and the hot tail gas passes through the material layer through the channel connected by the gaps generated during the accumulation process of the block material. Therefore, the particle size of the material has a key influence on the heat transfer effect of this preheater. If the material particles are too large and the hot exhaust gas crossing time ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27D13/00F27B7/20
CPCF27D13/00F27B7/2016Y02P40/40
Inventor 徐大鹏刘淳刘爽
Owner ACRE COKING & REFRACTORY ENG CONSULTING CORP DALIAN MCC