What is a jaw crusher?
A jaw crusher is a type of primary crusher used in mines and ore processing plants. It reduces large aggregates to smaller aggregate. Jaw crushers are an excellent choice for primary crushing in a wide variety of applications. They are capable of handling all types of material, whether abrasive, fragile, soft, or hard.

The working principle of a jaw crusher is as follows: a motor-driven belt and pulley, through an eccentric shaft, causes the movable jaw to oscillate. As the movable jaw moves back and forth, the material is crushed between the stationary jaw and the movable jaw. The material is discharged from the lower part of the machine.

Jaw Crusher is widely used in a variety of industries, including mining, construction, and recycling, due to their ability to crush materials of various sizes and compositions. In this article, we will explore the various application fields of jaw crushers and their benefits.

What are application fields of jaw crusher?
Jaw crushers are mainly used for primary crushing in large-scale aggregate production, construction material recycling, and in mining. They are also used for secondary crushing of some hard materials and for producing gravel. Some of the common applications of jaw crushers include:

1. Mining Industry
One of the most common applications of jaw crushers is in the mining industry to crush large rocks into smaller pieces. They are used to crush ores such as iron, copper, gold, and silver. These machines are used to reduce the size of ore in preparation for further processing and refining. The crushing process helps to separate valuable minerals from the waste rock, making it easier to extract and process the valuable materials. Jaw crushers are also used in the coal industry, where they are used to crush coal before it is processed and transported to power plants or other end users.

2. Quarrying Industry
Jaw crushers are used in the quarrying industry to crush large rocks into smaller pieces. They are used to crush stone, concrete, and asphalt for use in construction projects.

3. Construction Industry
Jaw crushers are also commonly used in the construction industry, where they are used to crush materials such as concrete and asphalt for use in road construction and building projects. These machines are particularly useful for recycling materials, as they can break down old concrete and asphalt into smaller pieces that can be reused in new construction projects.

4. Recycling Industry
Another application field for jaw crushers is in the recycling industry to crush concrete, asphalt, and other construction materials. These machines are used to crush a wide range of materials, including glass, plastic, metal, and paper, for use in the production of new products. Jaw crushers are particularly effective at breaking down materials that are difficult to recycle, such as electronic waste and construction waste.

With the increasingly demand for the construction gravel and sand, how to improve the capacity of crawler mobile jaw crusher station is concerned.

Firstly, strict control of feeding size. The feeding size of raw materials is 80%-85% of the feeding port.
Secondly, strict control of feeding capacity. Excessive feeding of raw materials may cause the blockage.
Thirdly, strict control of position of vibrating feeder. The optimum position of vibrating feeder should be in the top 1/3 range of the jaw crusher.
Fouthly, full use of the screening function of vibrating feeder for pre-screening. Fifthly, reasonable adjustment of discharge port of jaw crusher to maximize the processing capacity of the crawler mobile jaw crusher station. The angle between the movable jaw plate and the fixed jaw plate shall be within 17-26 degrees.

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Use of Gypsum Powder
Gypsum powder is one of the five major gel-type decorative materials. It is widely used in many industries and application fields such as construction, building materials, industrial molds and art models, chemical industry and agriculture, food processing and medical beauty. It is a very important The industrial raw materials are usually white and colorless, and sometimes they may become gray, light yellow, light brown and other different colors due to impurities.

Gypsum powder mainly has the following applications:

1, Building materials and construction industry
a: Anhydrite cement and cementitious materials: Anhydrite cement or cementitious materials can be produced by adding an appropriate amount of activator, suitable for the reinforcement of soft soil foundations, wall painting, mechanical models, tunnel support and production of fiber pressure boards .

b: Used as a co-solvent and scavenger in the glass production process.

c: Used as filler in industrial production of plastics, rubber, coatings, asphalt, linoleum, etc.

d: Cast-in-place piles and deep stirring piles are used as large expansion materials to increase frictional resistance.

2, chemical industry
a. used for the production of sulfuric acid, with the production of light cement.

b. used for the production of ammonium sulfate, with the production of light calcium carbonate.

3, agriculture
a. Improve the soil, adjust the pH, suitable for soil improvement such as saline-alkali land and red soil.

b. used as calcium and sulfur compound mineral fertilizer in the cultivation of edible fungi to adjust the pH of the medium.

c. used as compound mineral feed additive in poultry and livestock feed.

1. Common types of lithium ore
1) Spodumene, mainly lithium-containing primary ore, ore Mohs hardness 6 (limestone is 3-3.5, quartz is 7), density 2.7-2.9t/m³, grade mainly depends on lithium oxide content, generally 1-6 %;
2) Lepidolite, mica-like minerals, another major category of lithium minerals, has low hardness and low density, and the content of lithium oxide is generally lower than that of spodumene;
3) Lithium in salt lakes is mainly sourced from lake water with high salinity and does not need to be broken.

2.Lithium ore crushing process flow chart.

3.Lithium ore crushing and grinding process flow chart.

Silica sand process flow
Crushing:

The mined silica sand (quartz sand) ore is continuously fed into the coarse jaw crusher by the vibrating feeder for primary crushing, and then the particles after primary crushing are sent to the fine jaw crusher by the belt conveyor for re-crushing, and the crushed silica sand particles are sent to the vibrating screen for screening and grading.

Sand making:

After the screening process, the quartz sand particles that meet the feeding particle size requirements of the vertical shaft impact crusher enter the sand making machine for sand making process, and those that do not meet the requirements are returned to the crusher for re-crushing.

Screening:

The qualified silica sand particles from the sand making machine are returned to the circular vibrating screen for re-screening, the materials that meet the requirements go to the next process, and the materials that do not meet the requirements are returned to the sand making machine for sand making and crushing again;

Sand washing:

The produced silica sand is sent to the sand washing machine by the belt conveyor for cleaning, and the cleaned silica sand is sent to the finished product pile.