Company News-Shandong Shanlu Heavy Industry Technology Co. LTD

Is the discharge of high gradient magnetic separators getting slower and slower?2026-09-01The vertical high gradient magnetic separator is indispensable in the deep iron removal of quartz sand, but customers occasionally encounter situations where the processing capacity suddenly decreases significantly - with the same feed concentration and valve opening, the discharge volume is reduced by nearly half. Many people's first reaction is that the slurry is too viscous or the voltage is unstable, and after a lot of tinkering, they realize that the problem lies in the magnetic medium box.
Is the drum body of the three return drum dryer sticky and the thermal efficiency decreasing?2026-08-31In the quartz sand drying process of the three return drum dryer, it is common for the thermal efficiency to continuously decrease due to the sticking of materials on the inner wall of the drum. Many customers have found that after running the equipment for several months, drying the same amount of quartz sand requires more fuel consumption, and the moisture content of the discharged material is actually higher than before. The problem usually lies not in the heat source, but in the cylinder spe
Is the drum skin of the permanent magnet drum magnetic separator worn out quickly and replaced frequently? Hardness and sealing are the main factors2026-08-29The permanent magnet drum magnetic separator has a high frequency of use in quartz sand iron removal ring joints, and frequent replacement due to wear of the drum skin is a concern for many production lines. Quartz sand has high hardness and sharp edges, and the cylinder skin rubs against it for a long time, resulting in a much faster wear rate than processing other minerals. Every time the casing is replaced, the magnetic system needs to be disassembled and recalibrated, which is time-consuming
How to determine the mesh size of the dehydration sieve? Speak by observing the particle size distribution of materials2026-08-28In the wet production line of quartz sand, if the mesh size of the vibrating dewatering screen is selected incorrectly, the common consequence is that the moisture content of the finished product remains high or a large amount of fine sand is lost. Many customers repeatedly adjust the parameters of the screening machine to no avail, and the root cause often lies in the initial selection step.
Does the iron removal efficiency of a dry magnetic separator deteriorate as the processing capacity increases?2026-08-27In the dry purification of quartz sand using electromagnetic dry powder magnetic separators or permanent magnet roller magnetic separators, many customers have reported that slightly increasing the feeding amount leads to excessive iron content in the finished product. The problem is not with the strength of the magnetic system, but with the thickness of the material on the surface of the magnetic roller.
The current of the cleaning machine is abnormal. Don't replace the motor in a hurry. Check according to the sequence of gap bolts and inner lining2026-08-26The fluctuation of the operating current of the scrubbing machine, and even frequent tripping, is a troublesome issue encountered by many quartz sand production lines. On the surface, it looks like there is a problem with the motor, but the root cause is mostly due to the fit between the impeller and the groove.
Cleaning machine motor overload tripping, current fluctuating high and low?2026-08-25Many quartz sand production lines have reported problems such as motor overload tripping or fluctuating operating current. On the surface, it appears to be a motor malfunction, but the root cause is mostly due to the fit between the impeller and the groove.
Is the iron removal effect of electromagnetic dry powder magnetic separator poor?2026-08-24The electromagnetic dry powder magnetic separator is widely used in the dry purification of quartz sand, but many customers have reported that the iron removal effect decreases and the iron content in the finished product exceeds the standard after a period of operation. The problem usually focuses on three aspects: magnetic field strength, feed uniformity, and equipment temperature.
Is the production capacity of ceramic filter machines decreasing and the moisture content of filter cake high?2026-08-22Ceramic filter machines are widely used in the dewatering of quartz sand concentrates, but many customers have reported a significant decrease in processing capacity, thinning of filter cake, and high moisture content after several months of operation. The problem usually does not lie in the filter itself, but rather in the two links of ceramic plate regeneration and vacuum system.
Uneven drying and high energy consumption of the three return drum dryer?2026-08-21The three return drum dryer is the core equipment in the drying process of the quartz sand production line, and the moisture content of the finished product is usually controlled below 0.5%. Uneven drying (moisture content fluctuation exceeding 0.3%) and high energy consumption are the two most common problems.

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