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+86-15690533330
- shuangyangjixie@mail.ru
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China, Hebei Province, Tangshan City, Caofeidian District, SME Industrial Park, South Side of Zhi'er Road
+86-15690533330
China, Hebei Province, Tangshan City, Caofeidian District, SME Industrial Park, South Side of Zhi'er Road
2026-04-16
In grain processing, feed processing and bulk materials processing systems, the round primary screen is typically used as the initial pre-treatment equipment, serving the function of removing large impurities and protecting downstream equipment. Its working condition not only affects the cleaning efficiency, but also directly determines the stability of the entire production line. Therefore, in actual operation, it is necessary to build a standardized operating process and ensure coordinated control with the bucket elevator and dust removal system.
Before starting up the equipment, it is necessary to carry out a comprehensive check. First of all, you should make sure that the drive system is in good working order, that all connections are secure, and that safety devices are in place. Particular attention must be paid to the state of rotation of the drum - it must rotate freely, without jamming, friction or extraneous impacts.
It is also necessary to check the permeability of the loading and unloading channels to eliminate possible blockages due to residual material. Only after confirmation of the good condition of the equipment is it possible to proceed to start-up.
When starting up, the round primary screen should operate according to the principle of “first idle, then uniform feed”. After switching on, it is necessary to observe the operation of the equipment, make sure there are no vibrations, extraneous noise or rotational disturbances, and then gradually begin feeding the material.
During the feeding process, it is important to ensure continuity and uniformity, avoiding a sudden increase in the volume of material in a short period of time. When material accumulation occurs or the hopper is approaching full level, it is necessary to promptly interact with the relevant areas. If material reaches the level of the gravity pipeline, the flow should be stopped immediately and, if necessary, the equipment should be stopped to prevent overloading and damage, for example, to belt elements.
In addition, the round primary screening screen is strictly prohibited from being overloaded. Before stopping, you must stop feeding material and ensure that the material inside the equipment is almost completely unloaded.
During operation, the operator is obliged to constantly monitor the operating condition of the equipment. This can be done through walk-throughs or through inspection windows, assessing the quality of cleaning and stability of operation.
If abnormal vibrations, noise, or reduced cleaning efficiency are detected, the equipment must be stopped immediately and inspected. Only after troubleshooting is a restart allowed. Typical problems include drum misalignment, internal blockages and faulty drive units - which can lead to more serious damage if ignored.
The bucket elevator, as an important auxiliary equipment, performs the function of transporting material, and its condition directly affects the operating efficiency of the screen.
Before starting, it is necessary to check the drive elements, the tension of the bucket belt and the condition of the buckets, eliminating the presence of weakening, deformation or wear. During operation, ensure a uniform supply of material, preventing blockages and distortions.
During operation, it is necessary to regularly check the tensioning device, promptly adjust the position of the belt and monitor the operation through inspection windows. If abnormalities are detected, the equipment should be stopped immediately.
Particularly important: The bucket elevator must not be started or stopped under load. If a blockage occurs, you must first stop the equipment and only then clean it. Manual intervention inside operating equipment is strictly prohibited.
During the operation of the round primary cleaning screen, the dust removal system plays an important supporting role. Before starting the equipment, it is necessary to turn on the compressed air source in advance, ensuring that the system is ready.
During operation, you should regularly check filters and receivers, promptly remove accumulated moisture and dirt, keeping the system clean. It is also necessary to monitor the level of dust at the air outlet - if it increases, this may indicate damage to the filter elements, requiring replacement or repair.
If abnormal noise occurs, the system should also be stopped and checked to avoid reduced efficiency and safety risks.
The shutdown process must be carried out strictly according to the established procedure. First, the supply of material stops, after which the equipment continues to operate for some time to completely unload the residues. The equipment is then switched off in the reverse sequence of the process to avoid overloads.
The dust extraction system must continue to operate for some time after the main equipment is stopped to remove residual dust, after which it also turns off. After the system has completely stopped, the general power supply must be turned off.
After stopping, inspect the equipment to check for wear or loose connections. If malfunctions are identified, they must be recorded and repairs scheduled. It is also necessary to clean out accumulated impurities, especially metal particles in magnetic devices, and clean the work area, keeping it clean and tidy.
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