Mining anti-explosion draught fan
A mine explosion-proof and fan technology, which is applied in mechanical equipment, machines/engines, liquid fuel engines, etc., can solve the problems of easy damage to motors and blades, poor explosion-proof performance, and inconvenient blade replacement, so as to avoid safety accidents and improve explosion-proof. sex, enhance safety
Inactive Publication Date: 2016-01-13
费正华
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Problems solved by technology
[0004] The technical problem to be solved by the present invention is to provide a mining explosion-proof fan, which solves the probl
Method used
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[0017] The principles and features of the present invention will be described below with reference to the accompanying drawings. The examples cited are only used to explain the present invention and not used to limit the scope of the present invention.
[0018] Such as figure 1 The first embodiment shown is an explosion-proof fan for mines, comprising a fan housing 1, a motor 2 and a bracket 3. The bracket 3 is provided at the lower end of the fan housing 1, and the output end of the motor 2 is provided with a sealing device 4 , The output end of the motor 1 is connected to a rotating shaft 6 through a coupling 5, and the free end of the rotating shaft 6 extends into the fan housing 1 and is connected to the fan housing 1. An impeller 7 is sleeved on the rotating shaft 6 inside, and an insulating layer 8 and an anti-vibration layer 9 are successively provided on the inner side wall of the fan housing 1. The anti-vibration layer 9 and the insulating layer 8 are respectively made of...
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The invention relates to a mining anti-explosion draught fan. The mining anti-explosion draught fan comprises a draught fan shell, a motor and a support. The support is arranged at the lower end of the draught fan shell. A sealing device is arranged at the output end of the motor. The output end of the motor is connected with a rotating shaft through a coupler. The free end of the rotating shaft extends into the motor shell and is connected with the draught fan shell. The portion, inside the draught fan shell, of the rotating shaft is sleeved with an impeller. A thermal insulation layer and a shock-proof layer are sequentially arranged on the inner side wall of the draught fan shell. A shock-proof rubber gasket and a glass fiber material are adopted for the shock-proof layer and the thermal insulation layer respectively. The draught fan shell is provided with an air inlet and an air outlet. The inner pipe wall of the air inlet and the inner pipe wall of the air outlet are each provided with a plurality of guide vanes which do not intersect. A silencer is arranged at the front end of the air inlet. An anti-explosion junction box is arranged on the anti-explosion connection face of the motor. The impeller comprises a hub. A plurality of detachable blades are arranged on the circumference of the hub at equal intervals. The root parts of the detachable blades are fixedly connected with the hub through bolts. A grounding device is arranged on the draught fan shell. The draught fan shell is communicated with the ground through the grounding device.
Description
Technical field [0001] The invention relates to the field of mine fans, in particular to an explosion-proof fan for mines. Background technique [0002] Fan is a machine used to compress and transport gas. From an energy point of view, it is a machine that converts the mechanical energy of the prime mover into gas energy, including explosion-proof fans. Explosion-proof fans are used in places where the concentration of combustible gas is high and ventilation is required, such as underground coal mines and boiler rooms. The process of explosion-proof fans requires rotating parts (fan impellers) that will not produce sparks when friction with the shell under special circumstances, so as to avoid igniting combustible gases and causing serious consequences. [0003] Existing explosion-proof fans are not very good in terms of explosion protection. When used in some places, it is easy to cause some safety accidents. At the same time, the blades and hubs of the existing fans are an integ...
Claims
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Login to View More IPC IPC(8): F04D25/06F04D29/00F04D29/08F04D29/66F04D29/42F04D29/02F04D29/44
Inventor 费正华
Owner 费正华