TEL-156-1033-3958 The non pressure air door used in the coal mine, that is, the pressure balance air door, is mainly used in each connecting Lane between the underground inlet and return roadway and the main inlet and return air roadway. The wind pressure on the damper converts it into an internal force through the balance structure, which is easy to open. It has the advantages of small power, simple use, safety and convenience The main features of balanced non pressure damper are: 1. The opening force of the balance damper is small, and the opening force has nothing to do with the wind pressure and wind direction; 2. The balance damper has two-way air isolation, and the air leakage is small. There is no need to set a reverse damper;

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The non pressure air door used in the coal mine, that is, the pressure balance air door, is mainly used in each connecting Lane between the underground inlet and return roadway and the main inlet and return air roadway. The wind pressure on the damper converts it into an internal force through the balance structure, which is easy to open. It has the advantages of small power, simple use, safety and convenience

The main features of balanced non pressure damper are:

1. The opening force of the balance damper is small, and the opening force has nothing to do with the wind pressure and wind direction;

2. The balance damper has two-way air isolation, and the air leakage is small. There is no need to set a reverse damper;

3. It can be made of steel, with simple structure and durability. It can be divided into automatic non pressure balanced steel damper and automatic non pressure balanced bamboo damper;

4. The automatic non pressure balanced steel damper closes smoothly and safely, avoiding the occurrence of mine accidents.

5. The balanced non pressure air door has good fire protection performance, which can effectively prevent the possible fire in the belt transportation roadway and prevent the fire and harmful gas from entering other roadways;

6. The pressure balanced damper can be operated manually or automatically. If a set of control system is added, the damper can be opened automatically, that is, it can be controlled manually and automatically.

7. Automatic non pressure balance damper can realize mutual locking between two dampers.

Shandong Luyue mining equipment Co., Ltd

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