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river gravel processing equipment

river gravel

What is the river gravel:

The river gravel is a natural stone that was buried with sediment in the ground, and taken from the crustal movement by the ancient river bed uplift in the mountains. Due to the changes of the earth's crust, we can also them in the foothills.The main chemical composition is silicon dioxide and followed by a small amount of iron oxide and small amounts of manganese, copper, aluminum, magnesium and other elements and compounds. They have different pigments and there are many river gravel near the river. The difference of river gravel and pebbles: pebbles refers to the external shape like a goose egg stone which has natural pebbles and mechanisms pebbles and include the artificial and natural. Cobblestone geometric generally refers to the equivalent to the size of the goose egg stone, often with a diameter of 5-12 cm. River pebbles means the same as the egg stone, regardless of size. River gravel refers to the stones as like eggs and it is completely natural formation. There is no artificial mechanism.

Processing technic

river gravel Processing technic River gravel that is an ideal choice for courtyards, roads and construction stone due to its very wide distribution, more common and pleasing in appearance. It is an ideal green building materials because it has the natural stone characteristics of quality hard, sharp color and quaint, compressive strength, wear-resistant and corrosion-resistant.

Taking into account the higher hardness of river gravel in the river gravel processing, therefore we should not only get the national design but also should consider the cost of the production line. Wear parts for the loss of the jaw plate, the plate hammer and the back plate are very high in the river gravel processing, so the crushing process design should use the laminated principle of crushing equipment to reduce the wear parts for wear and tear . A typical laminated device configuration that is the process configuration use of two broken jaws or a broken jaw and cone crusher.

At present, Shanghai Xuanshi river gravel processing equipment has been widely used in the processing of the major sand and gravel plant river pebbles. The river gravel aggregate through its processing has become the ideal choice for the garden, roads, buildings and other projects of construction stone. The effect is good and has the good favor of the building materials market.

The necessary equipment:

River gravel jaw crusher has some features: 1. simple structure, convenient maintenance and easy to use, stable performance and low operating costs; 2. crushing chamber deep and no dead zone, improve the capacity and output of the feed; 3. big crushing ratio, uniform product size; 4. gasketed nesting population adjustment device, reliable and convenient, the adjustment range, increase the flexibility of the device; 5. lubrication system safe and reliable, easy to replace parts, small maintenance workload; 6. simple structure, reliable operation and low operating costs; 7. stand-alone energy-saving 15% to 30%, more than double the system energy; 8. discharge opening adjustment range is big that can meet the requirements of different users; 9. low noise, less dust performance.

river gravel jaw crusher

River gravel jaw crusher parts of job have two jaw plates that one fixed jaw plate (fixed jaw), vertical (or the top slightly extraversion) fixed wall in front of body, and the other is the movable jaw plate (moving jaw) tilt position, under the small of the crushing chamber (cavity) with the fixed jaw plate. Facing the fixed jaw plate, movable jaw plate periodic reciprocating motion, sometimes separately, sometimes near. River gravel jaw crusher should be noted in using: a crusher to normal operation only after the feeding. 2, to be broken material should be uniform to join the crushing cavity, and should avoid the side feeding to prevent the sudden increase of load of mutations or unilateral. 3, under normal operating conditions, the bearing temperature rise should not exceed 35 ℃ and the maximum temperature should not exceed 70 ° C, otherwise should stop immediately, and to identify the reasons to be eliminated. 4, before stopping, you should stop feeding until the broken material completely empty cavity was broken only after the turn off the motor.

River gravel impact crusher

river gravel impact crusher

River gravel impact crusher used for crushing the side with a length of not more than 500mm, and compressive strength of not more than 360Mpa of a variety of materials. It has a better applicability for granite, limestone, river gravel and basalt. It has some characteristics :1. Large feed inlet large, high crushing chamber; 2, easy to adjust and effective control of the feed size;3, compact structure, strong rigidity of the machine;4. high chrome plate hammer, impact resistance, abrasion resistance, big impact strength; 5 fragmentation functions are complete, high productivity, high overall efficiency of the advantages. The river gravel impact crusher what is a broken machine that use the kind of impact energy to break the materials. When the machine working, driven by the motor, the rotor high-speed rotation, the material into the active region of the plate hammer, Impact Crusher board hammer on the rotor, and then was thrown to the counter-attack on the device again broken, and then from the counter Liner bounced back into the active region of the plate hammer to re-broken, this process is repeated, the material descending into one, two, three, repeated crushing counterattack cavity, until the material is broken to the desired particle size, from the discharge port. Adjustment the gap between the counterattack frame and the rotor can be achieved the purpose of changing the material's grain size and shape. Stone from the upper part of the machine directly into the high-speed rotation of the turntable; and under the role of high-speed centrifugal force, with another part of the umbrella shunt high-speed collision with the crush of high-density dial around the flying stone. The stone fight against each other, will between the dial and case, the formation of vortex movement caused many times fight against each other, friction, grinding, straight from the lower part of the discharge. Form a closed loop several times, to reach the required particle size by sieving device control.

River gravel cone crusher

river gravel cone crusher

River gravel cone crusher is widely used in the metallurgical industry, construction industry, the road building industry, chemical industry and the phosphate industry and it is suitable for crushing hard and medium hard ore and rock, such as iron ore, copper ore, limestone, quartz,granite, basalt, diabase, and so on.

The river gravel cone crusher performance characteristics: a moving cone continuous rotation, the crushing process and discharge process of the materials alternately along the work surface for high productivity. 2, the material sandwiched between the two cones, the squeezing, bending and shearing, crushing easier, the power consumption low. Products Liaoduo more uniform, was a cube shape, more uniform wear of the moving cone surface. 4, the structure of the main rack, the horizontal axis, move the cone, the balance wheel, eccentric sleeve, crushing wall (fixed cone), the broken wall (moving cone), fluid couplings, lubrication systems, hydraulic systems, control systems of several parts. 5, the movable cone and fixed cone is set, moving cone swing, in the vicinity of the crushing chamber to the discharge port, parallel with a gap equal between the movable cone and fixed cone, so that the finished product Liaoduo uniform. Inlet size are able to handle after the initial crushing of the material. 6, the dry oil or water, two seals, dust and impurities can not enter the human body, thus extending the sliding bearings, thrust ball bearing life. Compared with the other cone crusher, cone crusher in Shanghai Hin Sai river gravel with a higher capacity, higher quality; 2, structural stability, smooth operation and reduced downtime;, easy maintenance, low cost ; 4, may be in pieces, crushing, ultra-crushing operation to provide the best solution; 5, product size can be adjusted at the advantages.

sand making machine

river gravel sand make machine The whole Centre for the feeding: material falling into the hopper of sand making machine, through center feeding holes into the rejection of high-speed rotation of the wheel, thrown round rapid acceleration, the acceleration of up to tens of times the acceleration due to gravity, and then high speed from the rejection of the wheel within the shot. Firstly hit another part of the material and the free-fall after the rebound, then with the impact of the lining materials (stone strike stone) or counterattack block (iron strike the stone), rebound oblique impact on the top of the vortex chamber, but change its direction of motion, deflected downward movement, emitted from the impeller material impact to the formation of a continuous material curtain. In this way, a material in the vortex crushing cavity by two to repeatedly chance of impact, friction and grinding broken.The broken material discharged from the lower part of the discharge opening. Center feed to accompany the circular waterfall drop feed: material falling into the sand making machine feed hopper, falling by circular hole, are plate is divided into two shares of material, an high-speed rotating thrown round the sub-feed pan and the other shares fall four weeks from the sub-feed pan. Thrown round to enter the material, thrown round the rapid acceleration, the acceleration of up to tens of times the acceleration due to gravity, then high-speed injection from the rejection round, first broken with another part of the material impact of the free fall around the feeder, and then with impact to the vortex cavity vortex lining material lining on the rebound, oblique impact on the top of the vortex chamber, but also to change its direction of motion, deflected downward movement, but also with the materials emitted from the impeller impact the formation of a continuous material curtain. In this way, a material in the vortex crushing cavity to receive the role of two to several times the probability of impact, friction and grinding broken. The broken material is discharged from the lower part of the discharge opening.

river gravel sand making machine Applications:

river gravel sand making machine application

With economic development and the state strong support infrastructure, such as the construction of railways, highways, bridges, hydraulic and hydropower engineering project, the construction of the project can not be separated from the sand and gravel aggregate, high-quality sand and gravel aggregate to ensure the health of the infrastructure developments. Due to the natural sand and gravel resources are limited, more and more sand and gravel manufacturer use the artificial mechanism of sand and gravel equipment.
Many river gravel resources in China and around the river pebble gravel aggregate processing production line built a strong guarantee for the supply of quality sand and gravel aggregates in national infrastructure projects. The finished product of river gravel through crushing production and processing can be used as a water plant, mechanical filters, ion exchange and other necessary materials. At the same time, the river gravel is an ideal green building materials because it has the characteristics of resist compression and corrosion resistant.
The river gravel used for public buildings, villas, garden architecture, cobblestone paved roads, parks rockery, bonsai filling material, garden art, and other senior superstructure. It is both to carry forward the ancient oriental culture, but also reflects the artistic style for western classical elegance and the art of a return to innocence.

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