Coal mill isolation door

1、 Overview of hot air isolation door for coal mill:
The hot air isolation door of the coal mill is an important auxiliary equipment of the boiler, installed on the cold and hot air ducts of the boiler in thermal power plants where isolation is required, such as the inlet and outlet ducts of the coal mill. This product is reliable in operation, flexible in opening and closing, and tightly sealed, fundamentally solving the shortcomings of previous isolation doors that were not tightly closed and had long closing times. It greatly facilitates equipment switching and shutdown maintenance, and has been widely used in major power plants across the country.    

2、 The main characteristics of the hot air isolation door of the coal mill are:
1. The hot air isolation door of the coal mill has adjustable and shared isolation functions, flexible adjustment, and good isolation performance.
When the hot air isolation door of the coal mill is working normally, the air door switch is flexible and there is no jamming phenomenon.
After the isolation door of the coal mill is closed, there is no internal or external leakage, the shaft seal is good, and there is no air leakage or air leakage.
4. High degree of automation, with remote, close range, and manual operation functions.
5. The distribution system can be integrated with DCS to achieve automated operation.
6. The air leakage rate after closure is less than 0.1%.
7. The production process of hot air isolation doors for electric and manual coal mills complies with relevant industry standards.
8. The hot air isolation door of electric and manual coal mills is easy to operate and has a short installation cycle, which can be completed during minor repairs.
9. Long service life, basically no maintenance required after installation, can be installed on any angle position of the air duct.
10. Electric and manual coal mills have small investment and fast results in terms of hot air isolation doors.

 3、 Technical parameters for hot air isolation of coal mill:

1) Model: MJGJ-B (length) × (width) × H (height)
Note: A × B can be various specifications of air ducts such as rectangular, circular, etc., to be determined by the user.

The thickness of the H air door is generally 300-800mm.

2) Media used: Cold and hot air containing powder
3) Design temperature: ≤ 600 ℃
 

Specification parameters:

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