The main function of the fine sand recovery machine is to wash, dehydrate and classifying the sand and gravel, and can recover a large amount of fine sand lost by the sand washing machine in the traditional sand-making industry. While improving economic benefits, it also reduces the processing cost of tailings and the pollution and damage to the environment caused by the loss of fine sand. One of the problems faced by the current mechanism sand production is the serious loss of fine sand, and some even more than 20%. This not only causes loss to the enterprise and environmental pollution, but also affects the gradation of sand, the fineness modulus is too coarse, and the quality is reduced. Therefore, the importance of fine sand recycling machines is self-evident.
Fine sand recycling machine
The fine sand recycling machine is a device developed for dewatering, de-intermediating and de-sliming of slurry materials. The fine sand recovery machine is also called tail sand recovery machine, fine sand extraction machine, fine sand collector, sediment separator, mud separator, sand water mixture treatment system, etc. The fine sand recycling machine has a reasonable design and is easy to use. It mainly has the following structural components: a motor, a vacuum high-pressure pump, a sediment separator, a dewatering screen, a cleaning tank, and a return box.
The sand-water mixture enters the cleaning box, is separated by the impeller separator, and then enters the lower dewatering screen for dewatering treatment. The waste water (containing a large amount of fine sand, mud, dust and other impurities) overflowing from the cleaning tank is transported to the high-pressure separator by the vacuum high-pressure pump, and then the fine sand after centrifugal classification and concentration is discharged into the upper layer of the dewatering screen through the sand settling nozzle. The waste water, mud, dust, impurities, etc. in the cleaning tank are discharged into the high-level return tank through the overflow port of the high-pressure separator. The upper layer produces the coarse sand of the finished material, and the lower layer produces the fine sand of the finished material, or a mixture of coarse and fine sand. So as to complete the three functions of washing, dehydration and classification.
Affect Factors Fine Sand Recycling Machine
In addition to the price of the fine sand recycling machine, users are more concerned about the recovery rate and effect of sand washing, because this directly affects the profitability and return time of the company. So what are the factors that affect its recovery rate?
1. Material-crushing degree
Before the material enters the fine sand recycling machine, it is necessary for the operator to check the degree of material fragmentation. If the feed particle size of the fine sand recycling machine changes during production, it will be immediately reflected in the recycling process. After all, the finer the crushing particle size, the better.
2. The hardness of the material
The fine sand recycling machine is suitable for ores with Morse hardness below 9, so customers must pay attention to this when purchasing. For ores with higher hardness, fine sand recyclers can also be recovered, but it will accelerate the wear of vulnerable parts and affect the fineness of the sand.
3. Separator blade wear
After the blade is worn, the amount of sand decreases, the fineness of the sand becomes coarser, and the severe wear of the blade will affect the life of the separator. Therefore, the wear of the blade should be observed in time during the work, and the worn blade should be replaced immediately.
4. Damaged screen or lose bolts
If it is found that the amount of fine sand recovery is significantly reduced or a small amount of sand leakage is found during operation, it is necessary to check whether the screen is broken or the bolts fixing the screen are loose. In view of this situation, its treatment method is to change the screen or tighten the bolts.
When the screen mesh is too worn, it will lead to the phenomenon of screen breakage, which will reduce the efficiency of fine sand recovery. Therefore, the operator must check the screen regularly in time, and replace it in time if it is found to be worn, so as to avoid the loss of fine sand.
5. Processing Capacity matching problem
When purchasing, users should pay attention to whether the power of the fine sand recycling machine matches the processing capacity of their own sand and gravel plant. If your sand and gravel factory discharges more wastewater than the fine sand recycling machine can handle, of course, it will not be able to get what you want. Therefore, when purchasing a fine sand recycling machine, we must first determine which product to choose.
6. Density of sand-water mixture
If you are using the fine sand recycling machine for the first time, you may not be very clear about its working principle. The fine sand recovery machine can recover the fine sand in the sand-water mixture. If the density of the sand-water mixture is too large or too small, the recovery effect of the fine sand recovery machine cannot be truly achieved.
7. Operating Specifications
Operational factors undoubtedly affect fines recovery. For example, in closed-circuit grinding, when the sand return rate is too large and exceeds the normal processing capacity of the fine sand recycling machine, the phenomenon of “running rough” will occur. If the sand return ratio is too small, or there is no sand return, it is easy to cause damage. Another example is that if the load is too large, the phenomenon of “running rough” will be serious; while the load is insufficient, the damage will be severe. Therefore, the ore feeding is required to be uniform and stable, and the increase of the fine sand recovery rate will be affected when the ore feeding amount is large or small.
8. Ore properties
The composition and physical properties of the ore have a great influence on the recovery rate of fine sand. For example, when the ore particle size is relatively coarse and the structure is loose and brittle, it is easier to grind. However, when the embedded grain size of the minerals becomes smaller, the structure is finer and the hardness is larger, it is more difficult to recover. Generally speaking, the coarse-grained grade is simpler in coarse grinding, and the rate of qualified particle size is faster, while fine grinding is more difficult. As the particle size decreases, the fragile surface of the material is correspondingly reduced, that is, it becomes more and more consolidated, so the rate of qualified particle size is slower.
JXSC Fine Sand Recycling Machine
1. In the traditional wet sand making process, whether it is a wheel sand washing machine or a spiral sand washing machine, a certain amount of fine sand will be lost. It will not only cause trouble to the post-processing process, but also cause a certain loss of fine sand and waste of resources. Combined with the characteristics of sand washing machine and fine sand recycling machine, it has both sand washing and fine sand recycling functions. The cleaning material is cleaner than the traditional sand washing machine, and the quality of the finished product is excellent.
2. The all-in-one machine has higher working effect than traditional equipment, low energy consumption, energy saving and environmental protection, and low operating cost. The finished grain shape is also very good, the gradation is reasonable, and the fineness is adjustable, which is very suitable for artificial sand making and stone molding.
3. The cyclone of the fine sand recovery equipment adopts a polyurethane screen, which has a long service life. It is not easy to block holes, and the maintenance cost is low. Different schemes can be designed according to the different needs of users.
The fine sand recovery machine can effectively reduce the loss of fine sand, effectively reduce the content of stone powder in tailings water, solve the problem of low stone powder content, and improve the quality of sand-making products. Under the market situation where the state advocates environmental protection and conservation, the use of fine sand recovery devices can not only recover more effective resources, but also save costs. It is more conducive to the protection of the social environment, contributing to the development of the country while maintaining the home environment. When purchasing, you can choose the most suitable equipment according to your own production needs to ensure the best economic benefits. Contact us online to get the factory price!