The content of the first section of the mining schedule
The content of the schedule should be based on the specific conditions of the mine. Generally divided into mining (recovery) schedule chart and excavation schedule chart two parts. For large mines with many mining bodies, sometimes mining or mining plans are prepared.
The mining (or mining) schedule chart mainly reflects the development of the mining work year by year; for multi-grade mines, the annual output and quality changes of various grades of ore should also be indicated in this chart.
Generally , for mines with good exploration level and high proportion of advanced reserves , the mining schedule chart can be compiled according to the ore body, stage and nugget, and its mining method, mining system layout, ore reserve, quality, and mining tasks can all be The compilation is more detailed; while the deposits with complex conditions (such as the exploration type of tungsten-bearing deposits), due to the large number of ore bodies, small scale, and low reserves, sometimes only according to the mine's possible mining intensity, each stage is calculated year by year. The amount of mining.
The excavation schedule chart is a chart reflecting the progress of the tunneling year after the mine is put into production. Generally, it is a development project in the production period determined by design, a production prospecting project, a mining cutting project calculated according to the standard mining method, and a staged sub-operation project lists the schedule of its operation volume year by year. The plan should ensure that the mining work is coordinated with the excavation work.
The excavation schedule can be compiled with the mining schedule to form a mining schedule; it can also be compiled with the infrastructure schedule and a separate schedule.
The second section of the mining schedule is compiled
The mining schedule usually consists of two parts: a form and a text. Explained in the text part of the original plan is based on information compiled, such as the preparation of principles and the mining sequence; industrial minerals listed amount, quality and quantity of metal in the various stages of the mining area in the table section; at the same time, according to the mining method and design recommendations deposits Calculate the ore loss rate and depletion rate determined by the occurrence conditions, calculate the ore quantity, ore grade and metal amount of each stage (or ore body, ore block), and then calculate the annual output according to the possible mining intensity. The amount of ore, the grade of the ore and the amount of metal, and determine the number of stages of simultaneous operations.
The mining intensity can be selected according to the declining depth of the mining year of similar mines, or the ore body can be roughly divided according to the ore body direction of each stage, and then the mining capacity of each stage and each ore body can be calculated according to the daily production capacity of the ore block determined by the design.
In order to strive for the mine's annual output, variety and grade balance, specific measures should be taken in the process of preparing the plan, such as partial change of the mining sequence, increase of spare ore to reduce the quality fluctuation of the mined ore.
Preparing a mining schedule is a more complicated task. It is often determined after repeated revisions.
There are many forms of charting for the mining schedule. The design can be selected according to the actual situation of the mine with reference to the mining design manual. Table 3-1 lists one table style, comprehensive application process for a lead-zinc mine, Shrinkage Method, used when filling mining method.
Section 3 Preparation of the mining plan
The mining schedule was proposed during the mine design phase. After the mine is put into production, a certain amount of new geological data will be added after the production of prospecting and mining work. In order to guide mine production, it is necessary to prepare a yearly mining plan, a mining quarter plan and a monthly plan based on the new geological data and new mining requirements based on the mining schedule.
The annual mining plan of a large mine, that is, the annual production and operation plan, is the general outline of the mine's one-year work. It is compiled by the mine planning department based on the actual situation of the current year based on the completion of the major indicators of the previous year. The plan should have an estimate of the completion of the previous year, the plan for the current year and the plan for the next few years.
The annual mining plan is mainly composed of the following nine major projects, namely, total industrial output value, main product output, mine operation volume, ore dressing capacity, profit realization, income tax paid, tax adjustment, product tax and direct cost. Among them, the mine operation volume is directly related to the mining schedule.
Mine operations are the goal of one year of underground production. It includes the total amount of mining (including the amount of mining and by-product minerals), the amount of excavation (including sub-exploitation, bioprospecting, mining, cutting), the amount of ore, the amount of filling, the amount of drilling and the amount of 10,000 tons of mining. .
In order to ensure the implementation of the annual mining plan, the annual major technical and economic indicators plan and annual operation plan should be formulated accordingly. The main technical and economic indicators of mining are control (1) ore grade; (2) mining loss rate; (3) ore depletion rate; (4) 10,000 tons of excavation; (5) face efficiency of the face; (6) rock drill Class work efficiency; (7) physical labor productivity of all employees; (8) main material consumption. These indicators control the completion of production tasks in terms of both quality and quantity, including equipment efficiency, labor consumption and material consumption.
The annual operation plan is prepared separately for mining and excavation, and the site (section stop), the nature of the operation and the project content must be specifically implemented. The nature of the operation of the mining operation plan is the mining, cutting, mining and mining, and the mining of the pillars. The plan is to reflect the cutting volume and recovery volume of the whole year and each quarter. The nature of the operation of the tunneling operation plan is to develop, to explore, to calibrate, to cut the lane, and to plan the amount of work for the whole year and each quarter.
The planned footage of the roadway, the amount of mining and the arrangement of the machine are all estimated and the accuracy is poor. In order to make the plan as close as possible to the actual situation, the preparation time should be as early as possible, leaving enough time for exploration and modification.
After the annual mining plan and the annual operation plan are submitted to the competent authority for review and approval, the quarterly and monthly operation plans are prepared. The quarterly operation plan is also written in two parts, namely, mining, charging, filling (for mines using filling method) and excavation, and implementing the operation site and operation contents. Specific implementation of the monthly work plan. In addition to the specified work location and operation content, the monthly operation plan should be implemented in the team and machine platform, and specify the efficiency of the class and the loss-depletion indicators.
We are manufacturer of Valve Accessories in China, if you want to buy Bicycle Tire Valve Adapters,Tyre Cap,Tire Cap Valve please contact us.
Valve Accessories,Bicycle Tire Valve Adapters,Tyre Cap,Tire Cap Valve
KRONYO United Co., Ltd. , https://www.kronyotaiwan.com