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Coal-fired sleeve shaft kiln injection plugging removal system

A sleeve and shaft kiln technology, applied in cleaning methods and appliances, cleaning methods using gas flow, chemical instruments and methods, etc., can solve problems such as blocking the smooth passage of airflow, materials cannot fall smoothly, unfavorable technical indicators, etc., to achieve High blockage removal efficiency, reduced number of kiln shutdowns for maintenance, and considerable economic benefits

Active Publication Date: 2016-09-07
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

Because the ash content of pulverized coal combustion is easy to accumulate on the material surface, it forms a eutectic with the impurities in the raw material, and hardens on the material surface, making the material unable to fall smoothly and blocking the smooth passage of the air flow, which is not conducive to the technical indicators of the kiln. control, seriously affecting normal production

Method used

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  • Coal-fired sleeve shaft kiln injection plugging removal system
  • Coal-fired sleeve shaft kiln injection plugging removal system
  • Coal-fired sleeve shaft kiln injection plugging removal system

Examples

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Embodiment Construction

[0018] The specific embodiment of the present invention is further described below in conjunction with accompanying drawing:

[0019] Such as figure 2 , image 3 As shown, the coal-fired sleeve shaft kiln blowing and plugging removal system includes a compressed air storage tank 1, and the compressed air storage tank 1 is connected to the gas source through an external gas source pipeline. The compressed air storage tank 1 is connected to each blowing and cleaning unit through the air source interface 13; the blowing and cleaning unit is arranged at the lower part of each burner combustion chamber 10 of the sleeve shaft kiln, and the blowing and cleaning unit corresponding to the upper combustion chamber It is the blowing and unclogging device 3 for the upper combustion chamber, and the corresponding blowing and unclogging unit for the lower combustion chamber is the blowing and unclogging device 4 for the lower combustion chamber.

[0020] The blowing and cleaning unit inc...

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Abstract

The invention relates to a coal-fired sleeve shaft kiln injection unlocking system. The coal-fired sleeve shaft kiln injection unlocking system comprises a compressed air storage tank; the compressed air storage tank is connected with injection unblocking units through pipelines; the injection unblocking units are arranged on the lower portion of every nozzle combustion chamber of a sleeve shaft kiln; every injection unblocking unit comprises an air cannon and a heat resistant expansion nozzle; the air cannons are arranged closely adjacent to the lower portions of the nozzle combustion chambers and are fixed on a kiln casing through a support; one ends of the heat resistant nozzles and air cannon outlets are connected through flanges; the other ends of the heat resistant nozzles extend into the interior of a kiln body; the heat resistant expansion nozzles eject high-pressure airflows and impact material surfaces and hardening of the material surfaces is crushed, and flowing of materials is recovered. The coal-fired sleeve shaft kiln injection unlocking system is simple and reasonable in structure and convenient to install and detach and effectively solving the blocking problem of the lower portion of the coal-fired sleeve shaft kiln arch bridge, is small in invest, low in operation cost and simple in maintenance, improves the lime kiln operation stability and the operability, reduces the time of maintenance slow-down kiln and creates considerable economic benefits.

Description

technical field [0001] The invention relates to a coal-fired sleeve shaft kiln, in particular to an injection and plugging removal system for a coal-fired sleeve shaft kiln. Background technique [0002] Sleeve shaft kiln is a process equipment for calcining raw materials, which has a unique structure and superior technical performance. The combustion chamber of the sleeve kiln is divided into upper and lower layers, and each layer is evenly distributed along the circumference of the kiln body. Each combustion chamber and the inner cylinder are connected by an arch bridge made of refractory bricks. Such as figure 1 As shown, the material 12 forms a V-shaped material surface 15 at the lower part of the arch bridge 14, and the pulverized coal burns in the space formed by the arch bridge 14 and the material surface 15. Because the ash content of pulverized coal combustion is easy to accumulate on the material surface, it forms a eutectic with the impurities in the raw materia...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B08B5/02
CPCB08B5/02
Inventor 寿庆亮王海波赵宝海王洪涛杨耕桃白城
Owner ACRE COKING & REFRACTORY ENG CONSULTING CORP DALIAN MCC
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