At present, the existing artificial sand production line, large diameter pile foundation of circular drilling technology, non excavation construction and seepage proof wall engineering, and large mine tailing slurry, which adopt wet process production technology mostly. No matter what type of treatment, the biggest disadvantage is that fine sand (below 0.16mm particles) is lost seriously, some even more than 20% is loss, which not only loses the output, but also seriously affects the gradation of the sand, which causes the unreasonable gradation and coarser the fineness modulus, which greatly reduces the product quality of the mechanism sand. Too much fine sand discharge will also cause environmental pollution. Our factory has successfully developed SG Series in order to solve the above problems such as partial loss of ultrafine sand and artificial sludge pollution refer to mud water can't be treated.Product advantages and characteristics • The fine sand recovery device can effectively reduce the loss of fine sand and control it within 5 ~ 10%. The problems in artificial material processing system are well solved which includes the fineness modulus of finished sand is high and the content of stone powder is low. •The synthetic plastic used for dewatering screen, sieve plate and spray head is developed by our factory together with several polymer research units, through repeated experiments, the life span of the material is 5-6 times longer than that of steel plate. It is wear resistant and difficult to block holes.
• Fine sand recovery system can recover fine grain material up to 90% of total emission. There are unparalleled technical and economic advantages over other equipment. •The fine particles are fully recovered, which reduces the workload of the sedimentation tank, the cost of clearing tank also been reduced.
•Fine sand recovery system reduces the natural storage time of fine materials can be directly transported to the market.
•Design, refit and applied to more fields such as: commercial concrete companies, wharf sand absorption and other industries according to the different requirements from the users.Equipment principleThe equipment consists of motor, wear-resistant pump, mortar concentrator, cleaning tank of straight-line dehydration screen, reverse box and so on.
Working process: the mud water flows into the cleaning tank, through wear-resistant pump and arrive at mortar concentrator, separate the sewage and sand by the concentrator, and the sand passes through the spray head and come to dehydration screen, arrive into the conveyor belt after dehydration. The sewage returns to the reverse box, split flows into the cleaning tank, and the excess part leaks out.Model technical parameters
Note:The pump is divided into vertical pump and horizontal pump, after treatment, solid particles above 200 mesh and solid content 70%-80%.
(diameter & numbers)
|Outline dimension |
The treatment capacity (treatability) varies according to the solid content.
The top of the hydrocyclone is a hollow cylinder. The lower part of the hydrocyclone is an inverted cone connected to the cylinder
The two parts constitute the working simplified body of the hydrocyclone. The top part of the cylinder body is tangentially fitted with ore feed pipe, with an overflow pipe and an overflow conduit at the top. There is a sand sink at the bottom of the conical cylinder. All parts are connected with flanges and screws. Feed ports, cylinders and sand sinks are usually lined with rubber, polyurethane, silicon carbide or diabase cast stones to reduce wear and replace after wear.
Operational principle of Hydrocyclone
A strong centrifugal force is used to separate the mixture under high-speed rotation.
The classic static hydrocyclone, for example, uses external pressure to push the feed mixture into the cyclone at a greater speed, because the mixture moves along the tangential direction of the cyclone, which causes the liquid to rotate along the wall of the cylinder. This motion is generally referred to as the outer swirl.
The particles in the external swirl are subjected to centrifugal force. If the density of particle is greater than the density of the surrounding liquid, it will get more and more centrifugal force. Once the centrifugal force is greater than the liquid resistance caused by the movement, the particles will overcome this resistance and move in the direction of the wall of the device and separate from the surrounding liquid.
The particles near the wall of the device are driven by the liquid above the cyclone, and move downward along the wall of the cyclone. The particles near the bottom flow port gather together to form a suspension with high consistency, which is discharged from the bottom flow port.
After separation, the liquid rotates downward, and after entering the cone, the inner diameter of the liquid separator decreases gradually, and the speed of the liquid rotation accelerates.
Because of the uneven distribution of pressure along the radial direction when the eddy current is generated, the smaller the axis is, the closer to the axis it approaches to zero, and becomes a low pressure region or even a vacuum region, which leads to the liquid moving towards the axis direction.
The closer to the axis, the smaller the place is.
When arrive at the axis, it approach to zero, becomes a low pressure region or even a vacuum region, which causes the liquid to move toward the axis.
At the same time, due to the large reduction of the bottom flow port of the cyclone separator, the liquid cannot be rapidly discharged from the bottom flow port, and the overflow port in the center of the top cover of the swirl cavity moves part of the liquid toward it because it is in the low pressure area, thus forming an upward rotational motion and discharging from the overflow port.
Hydrocyclone is mainly used in mineral processing:
1 Heavy-medium cyclone is the common heavy-medium separation equipment.
2 As grading equipment in grinding circuit; especially as grading equipment for fine grinding.
3. Desliming and concentrating ore pulp.
Shanghai ZhongRui environmental protection equipment Co., Ltd. is a new energy enterprise specialized in R&D, design, manufacture, sales and service, which engaged in complete set of equipment for crushing and sieving in mines, sludge treatment water recycling system and other environmental protection and energy saving products.
We adamantly take "Mining energy, protect environment, sustainable development" as the idea and "advanced technology, secured engineering, satisfactory service" as the tenet, innovate continually to research, develop and promote industrial application for high efficiency and energy saving, make persistent efforts to open up a new chapter. We are committed to provide advanced energy-saving and environmental protection products for the society and enterprises. Contribute to global common energy conservation and world environmental protection incessantly!
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