The function of the mine isolation equipment door is that when a gas explosion occurs underground, the blast wave will lift the explosion-proof door to protect the main fan.
What is the main structure of mine isolation equipment door?
What are the design features of the mine isolation equipment door?
What are the quality and installation requirements of mine isolation equipment door?
The shaft explosion-proof door of the mine isolation equipment door consists of an explosion-proof cover, a counterweight, and an anti-wind device; the explosion-proof door of the refuge chamber has a door leaf, a door frame, and an emergency locking device; therefore, the components of different mine explosion-proof doors are not exactly the same.
The mine isolation equipment door steel ring is designed to install a ring of section steel at the mouth of the air outlet, install an explosion-proof door on the section steel, and seal it with a rubber plate in the middle. The rubber plate is fixed on the explosion-proof door with a pressure plate. Three guide rails are installed outside the mine isolation equipment door, which are distributed at 120°, so that the explosion-proof door moves along the guide rails, and a limit position is set on it to control the opening height of the mine isolation equipment door. The explosion-proof door is equipped with a hydraulic positioning device to ensure timely and correct reset. The shaped steel ring is as small as possible at the air outlet wellhead, and it is enough to ensure that it is consistent with the section of the air outlet wellhead, which can reduce the force on the explosion-proof door, because the force on the explosion-proof door is the product of the section of the shaped steel ring and the negative pressure of the mine.
1. The installation location of the mine isolation equipment door. The explosion-proof door should be arranged on the same axis as the ventilation shaft, facing the air flow direction of the air outlet shaft; the distance from the intersection point of the air outlet shaft and the air tunnel to the explosion-proof door is at least shorter than the distance from this point to the suction port of the main fan 10 m.
2. The section of mine isolation equipment door should not be smaller than the sectional area of the outlet wellhead;
3. The mine isolation equipment door has a tight structure, must have sufficient strength, and have anti-corrosion and anti-throwing facilities.
4. The mine isolation equipment door must be kept closed at all times, airtight and airtight, and balance weights or other measures shall be taken to make the explosion-proof door easy to open, but it is strictly prohibited to lock. If liquid is used as seal, non-combustible antifreeze should be used in winter. If the water seal depth is greater than the wind pressure (the pressure difference inside and outside the explosion-proof door). The steel explosion-proof door of the bell-shaped explosion-proof door is held by a counterweight and buckled in the sealing groove of the air outlet wellhead.
5. mine isolation equipment door export requirements. Once a gas explosion occurs, the explosion-proof door can be reset in time to ensure the normal operation of the underground ventilation system. It is strictly forbidden for the exit of the explosion-proof door to face other buildings.
If you still want to order all mine isolation equipment doors, please contact Hangzhou Candid I/e Co., Ltd.
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