Basalt Crushing and Screening plant

Basalt crushed aggregate production line is composed of VSI sank maker (vertical impact crusher), feeder, jaw crusher, integer-impact crusher, vibrating screen, etc. This production line can produce fine aggregate of basalt, and the fine aggregate machine-made sand is widely used in construction of highways.

Basalt Crushing and Screening Process

Three-section closed process is adopted for this Basalt Crushing and Screening flow chart. It is combined with a jaw crusher (it is non-essential if tailings are used) and two impact crusher (or cone crusher). In the first jaw crusher, stone materials are primarily reduced. In the second impact crusher (or cone crusher), materials are crushed and separate part aggregate which meet requirements of granularity from the vibrating screen. For some bigger aggregate, which is also called products above screen, they are finally crushed to reach required size by the third impact crusher (or cone crusher). Of this closed system, the former two sections are open processes, and the third section is the closed operation process composed of impact crusher (or cone crusher) and vibrating screen. Qualified products are screened by two-layer sieve below vibrating screen, and sent to stock pile according its size.

According to different aggregate grading types of mixed materials, three kinds of granularities of materials are divided in order to simplify crushing and processing, comprehensive utilization and meet grading requirements. For example:

1. 10mm--15mm
2. NO.2 5mm--10mm
3. NO.3 0mm--5mm

In the basalt crushing and screening plant, by adapting dimension of discharge hole of crusher, changing sieves of diverse standards, aggregates of different size, graduation and ratio are produced so as to meet demands of products’ mixing proportion.

Features of Produce Basalt Aggregate by water washing method

1. Strictly control raw materials, and choose fine raw materials of basalt. Effectively tail after the resource of raw materials, strengthen monitoring of raw materials of cover-mount layer. When crush raw materials of cover-mount layer, increase one of the screen to remove any inferior rock. Impurities are abandoned through screen stencil.
2. Impulse-type basalt crushing shaper is combined with high-powder dust-remover, and suction opening is set on discharge hole of manufactured sands. Water spray facility, which can spray an appropriate amount of water, is installed on top of Steel structure. So pollution of raised dust to surrounding environment and products can be effectively reduced.
3. High-pressure spray pipe net is adopted to be fixed above the vibrating screen, especially the dewatering screen device which can wash aggregate all-wave, quickly and effectively. So particles of size below 0.075 are removed.
4. Adopt technology of five-class settling pond, and recycling washing water, keeping water clean so as to save water resource; high-pressure water resource is used to wash aggregates, which can improve surface cleanliness and surface alkalinity.
5. Through four times of basalt crushing processes, five times of screening processes of aggregate, content of soft particles, flat and elongated particles are reduces to improve quality of aggregate.

Basalt processing

1. Basalt mining
2. Basalt crushing and screening