QUARRY environment .pptx

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1. QUARRY

2. QUARRY Quarry is an open-pit mining system that is applied to mine deposits of excavated industrial materials, including: mining of limestone, marble, granite, andesite, clay, etc Definition of Paragraph

3. QUARRY Everyone , employees, guests and contractors must comply with PPE use in limestone quarry and clay quarry: 1. PPE standards used are safety helmet, black glasses, safety shoes and work clothes / vest safety. 2. The use of other PPE according to the type of work required to be used, such as: full body harness, masks, gloves, jackets with reflector, ear plugs, safety belt ,welding helmet, etc. 3. Operators of heavy equipment, drilling machine,driver of dump truck and light vehicle drivers in quarrying must have Simper (driver's license Mining) from the Head In Mining Engineering. 4. Operator fork lifts, cranes hoist is required to have a permit to operate from agencies authorized. 5. During the work, the work has to comply with safety regulations. PPE that must be used in quarry

4. QUARRY QUARRY LIMESTONE Nusakambangan

5. QUARRY P P E FREE ZONE

6. QUARRY QUARRY CLAY JERUK LEGI

7. QUARRY P P E FREE ZONE

8. QUARRY In the cement industry quarrying is the mining method for the production of raw materials in the process of making cement. The raw materials such as : 1. Limestone : ± 74 % 2. Clay : ± 20 % 3. Silica sand : ± 4 % 4. Iron sand : ± 2 %

9. QUARRY Scheme of Limestone Mining Process

10. QUARRY Planning has functions to plan of place where the mining process will be held. A tool used to mapping the area of mine named theodolyt . Theodolyt is a tool to measure or describe the topography of the earth’s surface. By this planning tool where mining can be known in geography PLANNING

11. QUARRY Theodolite is one measure of land used to determine the height of the land with horizontal and vertical angles.(Farrington 1997). Surveys using theodolite are conducted if the site to be mapped is large and / or difficult to measure, and especially if the site has a large relief or height difference. PLANNING

12. QUARRY Sampling is taking materials to determine the content and quality of the materials. There are two ways of sampling materials, that are : 1. Core Bore, that is taking samples before to opening the land with a depth is 85 m. 2. Core Drill, that is taking samples of material after drilling process SAMPLING

13. QUARRY After the process of sampling materials and the materials quality is good, then do the deforesting. Deforesting is opening the forest by felling the tree and then the top soil be removed to the place that has been determined so that the limestone can be looked. The remove of soil will be saved in other place. After the mining is finish ,with the high of surface land from the sea is about 10 meters ,The soil will be take again to do reclamation. Deforesting

14. QUARRY Drilling is a term for designating the method where surface holes are drilled for blasting. The depth of the hole varies between 3 meters and 6 meters, depending on the thickness of the rock formation. The heavy equipment to drill is called rock drill DRILLING

15. QUARRY Blasting is an intermediate step in the excavation process, the goal is to release the rock from its parent rock so that it becomes smaller fragments. In order to facilitate the load process. BLASTING

16. QUARRY Ripping is a process to take materials by ripping the land or mountain. The materials that can be ripped is softrock because of that material is not taken by drilling and blasting process. Usually ripping process uses excavators to take materials, then the materials are collected by dozer. After that, loader take materials to load into dump truck. This process is repeated. RIPPING

17. QUARRY Loading process is a process to transporting materials from quarry area to crusher. Loading process is done by loader to dump truck, and then dump truck tansports materials to crusher. LOADING

18. QUARRY The main objective of crushing is transforming and refining of a feed to a predetermined form, usually a limiting size, minimum and maximum, as defined by standards and directives. CRUSHER Hammer crusher is generally used in the cement industry. Hammer crushers are used to reduce the size of limestone. Hammer mills work with a reduction ratio of 1:60, depending on the crusher feed, this ratio can be enlarged to 1:80. CRUSHING

19. QUARRY After the crushing materials, materials are transported by belt conveyor to barge, and then barge is driven by comar ship to the plant harbour CIL 1. TRANSPORTING

20. QUARRY After the crushing materials, materials are transported by belt conveyor to barge, and then barge is driven by comar ship to the plant harbour CIL 1. QUARRY CLAY