Mine shaft name

Wellbore in underground mining coal mine, in order to enhance the transport, ventilation, drainage, power supply and other needs and dug the roadway and chambers of the general term mine shaft. There are many types of mine shafts. According to the relationship between the long axis of the roadway and the horizontal plane, it can be divided into three types: vertical roadway, horizontal roadway and inclined roadway.

1 The vertical axis of the vertical roadway is perpendicular to the horizontal plane, such as vertical shafts and dark wells.

A vertical shaft, also known as a vertical shaft, is an upright roadway that communicates directly with the ground. The main well, which is used exclusively or mainly for upgrading coal, is called the auxiliary well, which is mainly used to improve the auxiliary lifting work such as removing meteorites, decentralized equipment and lifting personnel. In production, it is often necessary to dig up shafts that are dedicated or mainly used for ventilation, drainage, filling, etc. They are named according to their main tasks, such as ventilation shafts, drainage wells, and filling wells.

Dark vertical wells—also known as blind shafts and blind vertical shafts—are vertical tunnels that do not directly communicate with the ground. In addition, there is a dark vertical well called a slippery well that is used to slid coal. Located in the interior of the mining area, the small height and small diameter of the well is called the coal eye.

2 The long axis of the horizontal roadway is approximately parallel to the horizontal plane, such as Pingyi, Pingxiang, Shimen and so on.

Pingyi - a horizontal roadway that communicates directly with the ground. Its function is similar to that of vertical shafts, such as main flat rafts, sub-level rafts, horizontal rafts and ventilated flat rafts. The alleyway and the alleyway—the straight roadway that communicates directly with the surface water, has a long axis direction that is substantially parallel to the coal seam. The alleys are arranged in the coal seams called coal seams, and the rocks are arranged in the rock formations. The alleys that serve the level of mining are often referred to as alleys, such as transport lanes. The coal seams directly serving the coal mining face are called transport or return airways.

Shimen and coal gates—horizontal roadways that are not directly connected to the ground. The rocky alleys whose long axis is perpendicular or oblique to the coal seam are called stone gates. The stone gates that serve the mining level are called the main stone gates, and the stone gates serving the mining areas are called the stone gates. Shimen Gate; in the thick coal seam, the straight roadway that is orthogonal or oblique to the coal seam is called the coal gate.

3 The roadway with a certain angle between the long axis of the inclined roadway and the horizontal plane, such as inclined shaft, uphill, downhill, oblique lane, etc.

Inclined well - an inclined roadway that communicates directly with the ground. Its role is the same as that of the shaft and the peace. An inclined well that is not directly connected to the ground is called a dark inclined well or a blind inclined well. Its function is the same as that of a dark vertical well.

The mining (panel) area goes up the mountain and down the mountain - serving. The inclined roadway in the mining (panel) area is also called the mountain (mounting) area or the F mountain. Uphill is used to mine coal seams above its level of mining; downhill is used to mine coal seams below its mining level. The up and down mountain where the conveyor is installed is called transporting up and down the mountain or the conveyor up and down the mountain. The direction of coal transportation is divided from top to bottom or from bottom to top of the mining level; the track is laid up and down the mountain IIq track up and down the mountain; the ventilation and pedestrians are called the ventilation, the pedestrians go up and down the mountain; Arranged in coal seams or rock formations.

Mainly up and down the mountain - serving a sloped roadway that mines half of the water. It is mainly applicable to the conditions of segmentation in the stage. Similarly, there are major transportation up and down the mountain and the main track up and down the mountain.

Inclined alleys - inclined roadways that are not straight-through and of short length are used for pedestrians, ventilation, transportation, etc. In addition, slippery eyes and contact lanes are sometimes inclined roadways.

Dwelling room—Underground roadways with three axes of different lengths and no direct access to the ground, such as winch houses, substations, coal bunkers, etc.

Good Quality Cummins Natural Gas Generator Set,

Applied gas:

Natural Gas, Biogas, LPG, Landfill gas, Oil gas, Syngas, Coal mine gas

Acceptable fuel gas pressure: 5~12 kPa CH4 content: for natural gas ≥85% CH4 content:for biogas ≥55%

Gas heat value ≥5500 kcal/Nm3 (23MJ/Nm3 ). Genset output power will increase as the gas heat value increase, if use low heat value gas for fuel (Heat value< 5500 kcal/Nm3, it will lower the power efficiency.

Gas doesn`t include free water or free materials (the size of impurities should be less than 5μm.)

H2S content ≤200 mg/Nm3,NH3 content ≤20 mg/Nm3, Impurities content ≤30 mg/Nm3;size ≤5 μm,Water content ≤40 g/Nm3, no free water.

Standard Scope of Supply:

1. Brand new gas Engine, 90% parts include engine body , crank shaft, cam shaft, piston, cylinder head, etc made by Cummins with best quality

2. Brand new brushless France Leroy Somer alternator

3. Rating: 3 phases 4 lines. 400/230V, 50 HZ , 1500rpm, 0.8PF, IP22-23, Insulation class H

4. Radiator for 40°C/50°C ambient temperature

5. Ignition system adopted USA ALTRONIC

6. Emergency stop mounted

7. Battery,Battery cable and Battery charger

8. Standard tool box

9. Standard Accessory for installation (include bellows,silencer,flange,asbestos pad,Anti-rust water,screw )

10. Gas Train include Regulator valve,Electromagnetic Valve, Fire arrestor,Ball Valve (Chinese brand)

Accessories list

1. Maintenance Operation manual

2. Quality certificate, Gen-sets ex-factory testing report

Optional:

1. Sound-proof canopy 2. CHP system 3. Grid parallel system 4. Remote radiator 5. Auto oil filling system 6. Water heater 7. Oil heater 8. Gas leaking detector 9. Flame detector 10. Gas scrubber

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