The track length of the German Lucheron net large flat small flat bag cage skeleton welding machine is 9 meters, so the entire bag cage can be welded at once, and then cut into sections and chamfered after welding is completed. This way, after splicing any two cages together, each tendon can align with each other.
German Lucheron Net Large Flat Small Flat Bag Cage Skeleton Cage BoneFunction:
The main function of the bag cage is to support the filter bag. Good quality bag cages are easy to install and also help extend the service life of filter bags, bringing convenience to transportation, installation, and replacement of filter bags.
German Lucheron Net Large Flat Small Flat Bag Cage Skeleton Cage BoneSeveral basic technical requirements:
The structure and size of the bag cage are related to its usage effect and strength.
German Lu Qi Long net large flat small flat bag cage skeleton cage bone standard:
Support ring spacing
The cage frame consists of support rings and longitudinal bars, and the distance between the support rings should be within the range of 150-200mm. It can be evenly distributed within the length of the frame or distributed in rows at both ends of the frame. The diameter of the supporting ring wire should be greater than the diameter of the longitudinal reinforcement wire.
2 spacing between longitudinal bars
If the cage frame is used for chemical fiber needle punched felt filter bags, the distance between the longitudinal bars should be ≤ 40mm. If it is used for fiberglass woven fabric filter bags, the distance between the longitudinal bars should be ≤ 20mm.
2.2 Stability standards for solder joints 4.3 Requirements for solder joints
All welding points of the filter bag frame should be firmly welded, and there should be no loose welding, virtual welding, or missed welding. Standard 5.3 Solder Joint Firmness Inspection
Fix one end of the circular bag cage frame, twist the other end to 60 degrees and hold for 15 seconds, then relax. The frame can recover normally without any welding detachment. Or use a force gauge to verify that the solder joint does not detach under a tensile force of 250N.
The basic requirement for welding is that the welding quality and strength meet the requirements without producing harmful burrs, as burrs can damage the filter bag. (Related to welding machines) Standard 4.4 Surface smoothness
The surface of the filter bag frame in contact with the filter bag should be smooth and clean, without welding scars, unevenness, or burrs.
2.4 Verticality refers to the perpendicularity between the central axis of the bag cage and the installation reference surface of the bag cage support.
A bag cage with poor verticality not only affects its appearance, but also affects the impact of pulse airflow on filter bags during ventilation and dust cleaning. It may even cause collision and friction between adjacent filter bags, and also bring trouble to the installation and replacement of filter bags. (Related to welding machine)
The verticality tolerance of the cage skeleton and bones of the German Lucheron net large flat small flat bag cage.
The verticality tolerance should be taken as a negative tolerance. Should be ≤ 2 ‰ of the frame length
The "bag cage verticality laser inspection instrument" provided by our company can be used for inspection
Conventional surface treatments include electroplating zinc or organic silicon powder coating; According to the dust
Due to different properties and usage environments, there are different requirements for the surface treatment of bag cages, such as resistance to high temperature and acid, and some places even require the use of 304 and 316L stainless steel bag cages. Some manufacturers directly use galvanized wire welding to avoid the trouble caused by galvanizing.
2.3 The relationship between the quality of the bag cage and the lifespan of the filter bag
The quality of the bag cage is closely related to the lifespan of the filter bag. We found that the main reasons for bag cage affecting the damage of filter bags come from three aspects: first, burrs on the surface of the bag cage cutting the filter bag; Secondly, if there are fewer straight bars used for the same diameter bag cage, the deformation amplitude of the filter bag will be too large during dust removal and cleaning. Long term repeated excessive deformation will cause damage to the filter bag; Thirdly, deformation, desoldering, corrosion and fracture of the bag cage can also cause the filter bag to repeatedly deform or rub excessively, resulting in damage.
The key dimensions of the skeleton cage bones of the German Lucheron net large flat small flat bag cage are: the size of the connection between the upper, middle, and lower sections of the bag cage is "100 0-1".
This size has a tolerance requirement, mainly to ensure that the spring hook can just clamp the upper and lower sections of the bag cage. If the size is too small, the spring hook will loosen and the bag cage will detach; If it is too tight, it cannot be stuck at all. This dimensional tolerance can be ignored if it appears on the metal mechanical cutting drawing, but in the bag cage drawing
Zhongjiu requires a very high tolerance. According to the size ring calculation method, this means at least three requirements: Requirement 1: The two support rings at both ends of the size "100 0-1" need to be flat. If these two support rings are
The flatness tolerance is greater than 1mm, and even if the distance accuracy between the two support rings is high, it cannot meet the specified dimensional tolerance.
The flat ring machine can maintain the flatness of the supporting ring.
Requirement 2: The precision of the ring distance between the two support rings at both ends of the size "100 0-1" should be high, that is, the precision of each ring distance moved during the welding of the bag cage should be high. The cage pulling mechanism of the flat bag cage welding machine of "Zhe Gong" is: linear guide rail+gear rack+Panasonic servo motor+Taiwan planetary gear reducer ", which can effectively maintain the accuracy of the positive ring distance.
Requirement 3: The two support rings at both ends of size "100 0-1" should be perpendicular to the central axis of the bag cage, and during welding, the support rings should be tightly attached to the reference plane and locked. The flat bag cage welding machine of "Zhe Gong" is equipped with a support ring locking mechanism, which can ensure that the support ring is tightly attached to the reference surface and locked before welding.
Position accuracy of guide plates on the skeleton and cage bones of the German Lucheron net large flat small flat bag cage
If the positions of the two guide plates at the connection are incorrect, it will not be possible to maintain the straightness of the two bag cages after connection, and it may also result in incorrect installation of the spring hook. The DLJ-80B guide plate welding machine can ensure the correct position of the guide plate during welding.