Ventilation Plan.pdf& mining methods in mining
- 2. Ventilation plan Q-What is ventilation plan and what is its objectives- Ventilation plans have to be maintained by all belowground mines. Regulation 65(1)(d) of Coal Mines Regulations 2017 stipulates that the owners, Agents or Managers shall keep a ventilation plan and section where necessary, showing the system of ventilation in the mine , and in particular –
- 3. Ventilation plan…contd (i) The general direction of air current (ii) Every point where the quantity of air is measured (iii)Every air-crossing, ventilation door, stopping and every other principal device for the regulation of distribution of air. (iv)Every fire-stopping and its serial number (v) Every room used for storing inflammable material
- 4. Ventilation plan…contd (vi)The position of every fire fighting equipment (vii)Every water-dam with dimensions and other particulars of construction (viii)Every pumping, telephone and ambulance station (ix)Every haulage and travelling roadway (x) Every auxiliary and booster fan (xi)Every stone dust barrier
- 5. Ventilation plan…contd (xii) Surface contour lines drawn at vertical intervals not exceeding five meters (or ten meters in the case of a mine where there are no working belowground or in cases of mines situated in hilly terrain, such other interval as the Regional Inspector may permit by an order in writing and subject to such conditions as he may specify) over the whole area lying within 200m of any part of the workings.
- 6. Ventilation plan…contd Regulation 163 of CMR 2017 stipulates that the manager shall ensure that as soon as any alteration is made in the ventilation of a mine involving erection or removal of an air- crossing or stopping or alteration in the position or installation of a ventilator or fan belowground, the erection, removal,
- 7. Ventilation plan…contd alteration or installation, as the case may be, is notified to the surveyor who shall forthwith make necessary alterations on the ventilation plan maintained under Regulation 65. Regulation 64(2) stipulatesthat while preparing the ventilation plan, the convention shown in the schedule shall be used.
- 8. Ventilation plan…contd Regulation 64(1) stipulates that the ventilation plan should (i) Specify the name of the mine and of the owner and purpose for which it is prepared (ii) Show the true north or the magnetic meridian and the date of the later (iii)Specify a scale of the plan at least 25centimeters long and suitably subdivided.
- 9. Ventilation plan…contd (iv) Be on a scale having a representative factor of 2000:1 or 1000:1. (v) Be properly inked in on a durable paper, tracing cloth or on a polyester film and be kept in good condition (vi) The plans and sections required shall be maintained corrected up-to-date which is not earlier than three months.