subject: The Kingdom Of Sand Making Machine [print this page] Central Economic Working Conference makes macroeconomic policy of next year is to make progress while ensuring stability. All kinds of Foundation Engineering Construction slow down their paces, and the real estate market slumps. To some extent, those predict the winter of sand washing equipment that used in the production of foundation construction material.
Since our country was founded, especially since the reform an opening up, the growth speed of national economic construction is very fast. The corresponding development of sand used as concrete aggregate, and stone used in traffic and railway construction is also growing rapidly. 600 million tons a year before the reform and opening up has increased to 1.6 billion tons a year at now. Annual output amount of sand has reached 20 million tons. With the deepening of reform and opening up, the implementation of the Tenth Five-Year plan, the development of high technology and infrastructure, the quantity and quality of the sand has a higher requirement.
Sand making machine also named sand maker is a kind of advanced stone-crushing equipment in home and abroad with high-efficiency, which is designed by adopting the "stone-beating-stone " theory and technology from Barmac Company of America. The Sand making machine is widely used for crushing hard and brickle materials including various minerals, abrasive material, refractory material, cement, quartz, iron ore, etc. Sand maker is especially suitable for making sand for buildings, road building. The HX Sand making machine (sand maker) consists of inlet, material-scattering device, whorl crushing chamber, impeller, main shaft, base, transmission drive, motor, etc.
In the face of the new century, facing Chinas accession to the WTO, and a new period of implementation the fifteenth national plan, the natural sand reduced, shortage or even depletion is the popular problem in most regions for Chinas sand and gravel industry. Hoe to develop a new concrete aggregate- manufactured sand to meet the needs of national construction in new period has been an important issue before us.
Working principle of sand making machine
Working process: Materials fall from the upper part of the machine to impeller which rotates at a high speed. Under great centrifugal force, they hit materials scattered around the impeller. After hitting each other at a high speed, there forms a vortex between impeller and shell. Materials hit and abrase each other for several times, finally smaller pieces come out through downside outlet, then go to vibrating screen which controls the size of final product.
Materials are transferred to sand making machinery from hopper, and then they fall into two parts by material-scattering device. One part falls to the impeller which rotates at a high speed from material-scattering device. In the impeller, materials rotate at even higher speed, and their acceleration is as big as hundreds of acceleration of gravity, then they are thrown out through three passages of impeller at a speed of 60-70 meters/second. They firstly hit part of materials falling from material-scattering device, then strike with materials inside the cavity, and rebounded by underlayer to top of cavity, thus its direction of motion changes to downward, then materials fall from the impeller passage form a continuous fall.
Features of sand making machine in our company
1High capacity, high productivity--50-500t/h, the output is 30% higher than the traditional sand maker under the same power.
2Low consumption of wearable parts--- best design of crushing chamber impact angle, little friction with the wearable parts, 30% lower running cost compared with traditional equipments, and reduced the use cost directly.
3Excellent shape of final products--- cubic products shape, good granule, reasonable grading, adjustable fineness modulus, especially suitable for artificial sand make and stone reshaping. The practice has showed that the effect of this series sand maker can improve 30% output in the process of sand making and stone reshaping than the traditional equipment.
4Easy installation and maintenance --- light weight, various installation ways, movable installation; The installation, repair and maintenance are easy, the operation is convenient. Once it is used for specific application, VSI sand maker only need to be adjusted very little, then it can reach the maximum performance.
