Share: River pebbles turn waste into treasure

2021-03-03 read:170

With the continuous improvement of people's quality of life, more and more people like to travel outside of work and life, which has greatly promoted the development of tourism. Seeing the bright prospects of the tourism industry, Mr. Huang from Jingmen, Hubei prepared to invest in the development of the scenic spot. The first difficulty he encountered was the cleaning of river pebbles. Mr. Huang has already spent a lot of money in the early stage of tourism development. He does not want to waste a lot of river pebbles. He plans to use these stones for secondary processing. In fact, the machine-made sand after the processing of river pebbles is an extremely important raw material for production, which can be a good substitute for natural river sand, and can be widely used in roads, municipal administration, construction, water conservancy and other fields.

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Knowing Mr. Huang’s needs, the technical team of Meilan after many communications and on-site inspections, formulated a plan for Mr. Huang’s 350 tons per hour river pebble sand production line. Field investigation and analysis of the gravel in the scenic area found that most of the raw materials are river pebbles, the particle size is 35-55mm, the Mohs hardness is 5-7, and the finished product requested by the customer is 0-5mm (exquisite), 5-10mm (Exquisite), 10-20mm (exquisite), 20-31.5mm (exquisite), in view of the above situation, Mr. Huang is equipped with vibrating feeder ZWS1150, new high-efficiency jaw crusher MJ100, single-cylinder hydraulic cone crusher MC500X- 220. Double-layer vibrating screen 2MF2470, three-layer vibrating screen 3MF2470, silo feeder MGB1422, vertical shaft impact crusher ML8400, a total of 8 sets of equipment, 350 tons per hour river pebble sand production line.

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The raw material river pebbles are evenly put into the MJ100 jaw crusher through the vibrating feeder ZWS1150 for coarse crushing, and the coarsely crushed materials enter the first-level screening (2 2MF2470 vibrating screens) for screening. The materials are screened through the first-level screening (2 2MF2470 vibrating screens): 0-5mm ordinary materials enter the stockpile, 31.5mm above enter the MC500X cone crusher for secondary crushing and form a closed loop, and 5-31.5mm materials enter the sand making Sand making and shaping on the machine (ML8400 vertical shaft impact crusher), and sent to the secondary screening (1 3MF2470 vibrating screen) for screening, the screening is 0-5mm, 5mm-10mm, 10mm-20mm, 20- 31.5mm fine finished material.


Technical advantages of Meilan products:


The entire production line is equipped with a PLC intelligent central control system, which has a high degree of automation, saves labor costs and is simple and quick to operate.


1. ZWS1150 vibrating feeder has stable vibration, reliable work and long life. The excitation force can be adjusted, the flow can be changed and controlled at any time, and the adjustment is convenient and stable. The vibration motor is an excitation source, low noise, low power consumption, good adjustment performance, and no punching phenomenon. Simple structure, reliable operation, convenient adjustment and installation, light weight, small size, and convenient maintenance. The closed structure design can prevent dust pollution and meet the environmental protection feeding standard.


2. The MF series vibrating screen is a new fixed-shaft circular vibrating screen developed by Meilan with a brand-new design concept, innovative thinking-oriented, and independent research and development; its characteristics are: the riveting combination of high-strength frame beam and screen box plate , To ensure safe operation; the bottom steel beam and the screen box are connected in a special way to facilitate the overall transportation and construction of the vibrating screen. The high-quality alloy forged main shaft is fixed on the base, using eccentric vibration, the amplitude is constant, and the vibration is stable. Compared with the traditional circular vibrating screen, the same screen surface can increase the output by 40%-75%. At the same time, the special screen surface design uses fewer bolts for screen installation, which increases the speed of screen replacement, increases the passing rate, and improves the screening efficiency.


3. The new high-efficiency jaw crusher MJ100 adopts a modular, non-welded structure frame, which avoids the problem of welding stress concentration, improves the equipment's ability to withstand impact loads, and enhances the durability and stability of the machine; unique deep v Cavity design, the processing capacity is more than 50% higher than that of the traditional jaw crusher; the integral bearing box structure is adopted to ensure complete coordination with the frame, avoiding additional load on the bearing box, and the bearing life is longer and more reliable; using hydraulic wedge Block-type discharge opening adjustment mechanism, stepless adjustment of the discharge opening size, making the adjustment of the discharge opening simple, safe, fast and save labor.


4. The single-cylinder hydraulic cone crusher MC500X has a dual-support structure of the main shaft, which enables the main shaft to withstand greater crushing force, and the moving cone has a small eccentric angle and better stability. Using intelligent hydraulic control system, it is easy to adjust the discharge port and provide more reliable overload protection. It is packed with feed material to realize lamination and crushing, with good grain shape, low energy consumption and greater processing capacity. At the same time, the crushing cavity type, eccentricity, horizontal axis speed, and different control methods can be changed to adapt to any specific production requirements. Installation, use and maintenance are simple; especially the non-filled backing design allows quick replacement of the liner, reduces downtime, greatly improves production efficiency, and achieves cost reduction and efficiency increase.


5. The silo feeder MGB1422 has stable vibration, reliable work and long life. The excitation force can be adjusted, the flow can be changed and controlled at any time, and the adjustment is convenient and stable. The vibration motor is an excitation source, low noise, low power consumption, good adjustment performance, and no punching phenomenon. Simple structure, reliable operation, convenient adjustment and installation, light weight, small size, and convenient maintenance. The closed structure design can prevent dust pollution and meet the environmental protection feeding standard.


6. ML8400 vertical shaft impact crusher, the finished pin pieces are more three-dimensional, and the high-quality finished products have better sales channels. After the processing of the VSI sand making machine, the stones are mostly cubic, the pin piece content is small, the particle size is uniform, and the gradation Reasonable and can meet high-standard material requirements. Structural optimization and upgrading are more economical and reasonable. The VSI sand making machine adopts a deep cavity impeller, which can increase the throughput by 30%. It is equipped with a peripheral guard plate that can turn up and down, which can effectively extend the service life of the whole machine. When wear occurs, only the worn part needs to be replaced, which can greatly reduce the cost of use. Equipped with professional dust removal, noise reduction and spraying devices, it can effectively reduce dust and noise pollution generated during operation and ensure the demand for green operations.


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