According to Crushing Method( compression, splitting, breaking, shearing, impact or blow, etc.) Of Different Stone Crushers, crushers can be divied 7 types.

Physical properties of river sand
The Philippine is located on the western edge of the Pacific Plate, where there are frequent earthquakes and volcanic activities.

A large number of hard rocks are produced accompanied by the volcanic eruption, they have been impacted for a long time, and they are smooth in surface and contain less impurities. The buildings which used river sand in some reinforced concrete structures can extend their life expectancy and have stable mechanical properties.

Layer structure of river sand
The Philippine river sand is composed of conglomerate, sandstone, shale, basalt, tuff and a small amount of limestone. The solid concrete made of these sands always has uniform texture and physical strength because of the uniform size and hard physical structure.

The mud content of river sand
As mentioned above, the Philippine river sand is mainly produced by the long-term effects of volcanic eruptions, crustal movements and river impacts. For the stratums where river sand stored in are stable, there is only fewer volcanic ash in the sand. So, it’s easy to remove the mud from the sand, and the cost of processing is low.

The chloride ion content of river sand
Because most of the Philippine river sands are collected from the riverbed generated after the volcanic eruption, the colors of the Philippine river sand mostly are black or gray.

The chloride ion content is relatively low. North and central parts have the lowest chloride ion content, below 0.02% on average. It is in line with the international standard for the use of concrete in river sand.

River sand particle size
With low mud content, Philippine river sand can be directly used as building materials after simple sieving. However, some river sands in other regions are mainly larger river pebbles, then a crushing machine is recommended.

The hardness of river sand
The main component of river sand is quartz, so its Mohs hardness is 7. It can be used by mixing with other materials for its good hydrophobic and air permeability.

Based on the above analysis, the river sand in the Philippines has unique advantages in the construction of the river sand supply market due to its low mud content, low chloride ion content, high hardness and perfect particle size which is suit for construction.

The quality of the Philippine river sand is extremely high. The only drawback is that it contains less large gravel, which is not convenient for direct use as construction sand. Therefore, a screening process is needed. Good screening equipment will certainly do more with less for the huge market demand.

The processing of pebble is divided into three stages: coarse crushing by jaw crusher, medium and fine crushing by impact crusher or cone crusher, and sand shaping by sand making machine.

1. Comprehensive utilization of brine: The lithium ingredients and liquid after extracting the chloride after extracting the chloride is extracted to remove the calcium and magnesium ions in the ingredients, add acidic acidization of hydrochloride, evaporates sodium chloride, then removes the iron, and then adds excessive solid alkali Make lithium carbonate precipitates, is washed, centrifugal, and dry, and lithium carbonate products are made.

2. Lime sintering method: Splendin concentrate (6%containing lithium oxide) and limestone by 1: (2. 5 ~ 3) weight ratio ratio. Mixed grinding, fired lithium aluminum and calcium silicate at 1150 ~ 1250 C, crushed through wet grinding, immersed lithium hydroxide with a lotion, filtered by sinking, filtering or washing residue, evaporation and concentration of immersion liquid, and then transparent and concentrated, then Add sodium carbonate to generate lithium carbonate, and then separate and dry it by centrifugation. Compared with lithium sulfuric acid method, the lime sintering method has the advantages of the advantages of simple processes, valuable chemical raw materials, and products with extensive use of products.

3. Use lithium hydroxide and carbon dioxide as the raw material to react with high purity lithium carbonate, or lithium sulfate and sodium carbonate as the reaction. , Generally about 75%, and the product also contains a small amount of lithium sulfate.

4. Sulfuric acid method: The melting hypalole reacts with sulfuric acid, and then purifies it with sodium carbonate reactions.

5. Lime method: The baked liquid pylorus reacts with the lime milk, and then the reaction with sodium carbonate is purified.

6. Taking lithium hydroxide as the raw material, after heating water dissolves it, the insoluble object is filtered, and the clean carbon dioxide gas is passed into the hot filter fluid until the precipitation is not reappeared. To pass, just dry at 110C. Solk industrial lithium carbonate in cold water. After filtering, the filter liquid is boiled and stops heating. It is washed, dried, and dry while hot water.

Lepidolite ore is a common lithium mineral and an important mineral for lithium extraction. With the development of lithium battery technology in the new energy industry, the demand for lithium is increasing, and the deep processing of lepidolite ore has attracted more and more attention. In the process of extracting lithium from lepidolite ore, it is necessary to pulverize lepidolite ore. What kind of grinding lepidolite ore is used for is a topic that has attracted much attention. The limestone method and HSO method commonly used in the process of extracting lithium from lepidolite ore require Using grinding equipment, the limestone method for lithium extraction is to mix lepidolite and limestone, and then calcinate at 900-1100 ° C, so that the alkali metals in it can be converted into compounds that are easily soluble in water. The lithium in it is extracted by the method; the HSO method has requirements on the fineness of the lepidolite, and the lepidolite needs to be ball-milled to a certain fineness before it can meet the requirements of the leaching rate.