Refuge chamber compressed air oxygen supply device refuge chamber compressed air oxygen supply device compressed air self rescue device

  The domestic brand filter elements of the forced air and oxygen supply device of the refuge chamber and the forced air self rescue device of the forced air and oxygen supply device of the refuge chamber are produced by our company to replace the original brand filter elements
The filter materials are the products of HV company originally imported from Germany, and the registered trademark is & ldquo; Jiajie & rdquo; Cards
Other brands involved in the company have no brand meaning and are only used as a reference for product model and customer selection
Imported filter elements and filters are imported with original packaging and anti-counterfeiting marks
Our company has long been OEM for major domestic enterprises to produce various styles of compressed air precision filter elements
1 supplied by Hangzhou Jiajie Electromechanical Equipment Co
, Ltd; Refuge chamber compressed air oxygen supply device refuge chamber compressed air oxygen supply device compressed air self rescue device
 
Relevant regulations on compressed air self rescue and refuge chamber
I
The setting of anti outburst reverse damper in the protruding area must comply with the regulations, the two dampers shall be interlocked, and the included angle between the anti outburst damper and the wall shall be & lt; 90°。
II
Refuge chambers must be set in the mining area of outburst coal seam
The position of refuge chamber shall be determined according to the actual situation
The refuge chamber shall meet the following requirements:
(I) the refuge chamber must be equipped with an outward opening isolation door, which shall be installed according to the standard of anti outburst reverse damper
The indoor clear height shall not be less than 2m, the depth shall meet the requirements of diffusion ventilation, and the length and width shall be determined according to the number of people who may take refuge at the same time, but at least 15 people can take refuge
Each person of the refuge chamber shall have an effective use area of not less than 1
0 m2, and each person of the temporary refuge chamber shall have an effective use area of not less than 0
9 m2, A certain reserve coefficient shall be reserved as required (the reserve coefficient of refuge chamber shall not be less than 1
2, and the reserve coefficient of temporary refuge chamber and movable rescue capsule shall not be less than 1
1)

(II) the isolation wall of refuge chamber shall be constructed of brick, stone or other materials, and the wall thickness shall not be less than 0
5m
Coal and rock entities are found in the surrounding cuts, and they are not less than 0
2m
Keep the wall flat, free of cracks, heavy joints and empty joints, meet the strength requirements and tight without air leakage

(III) the door frame can adopt solid wooden structure, but the thickness shall not be less than 100mm
The door frame shall be wrapped along the opening, with cushion lining, and the surrounding shall be in close contact with the door leaf
The isolation door leaf adopts solid wooden structure and is wrapped with iron sheet to ensure that the door leaf is flat without air leakage
Angle iron, channel steel or 120mm & times are used on the back; 100mm beam reinforcement, door leaf thickness not less than 50mm, flat and free of air leakage
The door shaft of the isolation door must be set at one side of the working face, and the isolation door can be closed automatically

(IV) the refuge chamber must be equipped with compressed air self rescue device and disaster avoidance self rescue articles
The compressed air self rescue device shall be equipped according to the number of people avoiding disasters
The air supply volume per person shall not be less than 0
3m3/min
If compressed air is used for air supply, pressure reducing device and breathing device with valve control shall be provided; The water source in the fire prevention system shall be used for drinking water
The consumption of food shall not be less than 96 hours for adults, and shall not be less than 2000kj per person per day
Drinking water shall not be less than 0
5L per person per day

(V) the refuge chamber shall be equipped with a sufficient number of isolated self rescuers according to the designed number of refugees

(VI) the support in the refuge chamber must be kept in good condition, ventilated by compressed air pipeline, and sprayed with mortar or plastered on the periphery to prevent gas accumulation
Anchor spraying, arch laying and other methods shall be adopted for support
The support materials shall be flame retardant, antistatic, high temperature resistant and corrosion resistant
The color of roof and wall shall be light color
The chamber ground is not less than 0
2m higher than the roadway floor

(VII) a telephone with independent number must be installed in the refuge chamber and can keep unblocked with the dispatching room to ensure contact with the dispatching room in case of disaster

III
when the distance between the heading face in the protruding area and the air return outlet reaches 500m, a refuge chamber must be built, and one refuge chamber shall be set every 500m in the future
Eye catching warning signs such as physical reflection shall be set outside the refuge chamber, and daily maintenance management shall be strengthened

The coal and gas outburst mine shall build the refuge chamber in the mining area
When the length of the excavation roadway of the outburst coal seam and the strike length of the coal mining face exceed 500m, the refuge chamber or life-saving cabin must be built within 500m from the working face

For other mines other than coal and gas outburst mines, walking from the mining face, if they cannot safely withdraw to the ground within the rated protection time provided by the self rescuer chamber, refuge chamber or life capsule must be built within 1000m from the mining face

The refuge chamber shall be arranged in stable rock stratum to avoid geological structure zone, high temperature zone, stress abnormal area and permeable dangerous area
The roadway within 20m in front and back shall be supported by incombustible materials, and the roof shall be complete and well supported, meeting the requirements of emergency exit
When it is really necessary to be arranged in the coal seam under special circumstances, measures shall be taken to control gas emission and prevent gas accumulation and coal seam spontaneous combustion
The refuge chamber shall be protected from mining during service, and the temporary refuge chamber shall be protected from mining damage during service

IV
installation position and quantity of compressed air self rescue
(I) compressed air pipeline shall be laid on the disaster avoidance route of the mining area with mine in the chamber, and air supply valve shall be set, with an interval of no more than 200m
Conditional mines can be equipped with compressed air self rescue devices according to actual needs
For mines with complex and extremely complex hydrogeological conditions, compressed air pipelines shall be laid at each level, mining area and high place of uphill roadway, and gas supply valves shall be set

(II) in case of coal and gas outburst underground, the mining face that may be affected by harmful gas and the places where people work in the up and down mountain areas of the mining area must be equipped with compressed air self rescue devices
The installation site of compressed air self rescue is mainly the anchor of mining and excavation of outburst coal seam, and other working faces are determined by the chief engineer of the mine (well)

(III) coal roadway excavation face in outburst area: a group of compressed air self rescue bags shall be set every 50m from the roadway return air outlet, with no less than 5 compressed air self rescue bags in each group, and the number of compressed air self rescue bags in a group close to the working face shall not be less than 15, and move forward in time with the excavation of the working face

(IV) coal mining face in outburst area: a group of compressed air self rescue bags shall be set within 25 ~ 40m from the air roadway to the upper exit of the mining face; A group of compressed air self rescue bags shall be installed at the blasting site 50 ~ 100m away from the lower exit of the mining face
The number of compressed air self rescue bags at the above two places shall be determined according to the number of workers in the working face and the relevant requirements of the group (company); A group of compressed air self rescue bags shall be installed at the blasting warning place at the entrance of Fengxiang alley

(V) at least one group of compressed air self rescue devices (no less than 2) shall be installed in the fixed manned working place such as belt head and winch in the return air roadway of the working face, and the construction place of maintenance roadway in the special return air roadway

(VI) the air pressure self rescue device must be set at the drilling place of low (high) pre extraction roadway

(VII) the air pressure of compressed air self rescue bag shall not be less than 0
1MPa, and the air supply volume of each self rescue bag shall not be less than 0
1m3/min

(VIII) striking warning signs such as physical reflection shall be set at the installation site of compressed air self rescue facilities, and daily maintenance management shall be strengthened

(IX) the compressed air self rescue device shall be installed on the compressed air pipeline in the roadway of the mining face, and shall be set on the side of the sidewalk with spacious, good support, complete ditch cover plate and no debris pile
The width of the sidewalk shall be kept above 0
5m, and the laying height of the pipeline shall be convenient for the self rescue application of on-site personnel
The installation height of the compressed air self rescue bag shall be 1
4m ~ 1
6m based on the lower opening of the pressure reducing valve
The switch position is convenient for operation and self rescue application of on-site personnel
Where conditions are met, bench seats are required

V
the pipeline specification of the compressed air self rescue system shall be calculated and determined according to the parameters such as the required air volume, air supply distance and resistance loss of the mine, but the diameter of the main pipeline shall not be less than 100mm, the diameter of the pipeline in the mining face shall not be less than 50mm, and the diameter of the pipeline in other scattered places shall not be less than 25mm
Seamless steel pipe should be used in coal mines where conditions permit
High pressure hose with coal safety sign must be used at the soft connection of pipeline
For long-distance air supply, the pipe diameter must be appropriately increased to meet the needs of air supply

The pipeline laying shall be firm and straight, and the joint shall be tight without air leakage
There shall be a main valve at the air source interface to facilitate the maintenance of the compressed air self rescuer

Vi
the main air supply pipeline shall be equipped with a water collector and drain
A switch and steam water separator shall be installed at the connection between the air supply pipeline and the self rescue device to keep the air supply clean and prevent the pressure reducing valve of the self rescue bag from being blocked frequently
The valves of the compressed air self rescue system shall be fully installed, and the valve wrench shall be in the same direction to ensure the normal use of the system

VII
The compressed air pipeline shall be connected to the refuge chamber and rescue cabin, and shall be equipped with air supply valves
The connected mine compressed air pipeline shall be equipped with pressure reducing, silencing, filtering devices and control valves
The pressure at the compressed air outlet shall be between 0
1 ~ 0
3 MPa, the air supply at a single outlet shall not be less than 0
3m3/min, and the continuous noise shall not be greater than 70dB

VIII
The underground compressed air pipeline shall be laid firmly and straightly, and protective measures shall be taken to prevent catastrophic damage
Protective measures shall be taken for the pipeline 20m before entering the refuge chamber and rescue cabin (such as burying pipe on the bottom plate or using high-pressure hose with the same diameter, etc
)

IX
the compressed air self rescue device shall meet the requirements of technical conditions for mine compressed air self rescue device (mt390-1995), and obtain the safety mark of coal mine products

X
the compressed air self rescue device shall have pressure reducing function
Welcome to call for details!
 
Company: Hangzhou Jiajie Electromechanical Equipment Co
, Ltd
 
Address: No
268, Shida Road, Jianggan District, Hangzhou
 
Tel: 0571-86458031 Fax: 0571-86465021
 
Mobile: 13606607916
 
E-mai: zsp615@163
com Website: www
86458031
com com
 
contacts; Zhu Saiping