Special spot welding machine of bag type dust collector keel

Abstract

The invention discloses a special spot welding machine of a bag type dust collector keel. The keel comprises a plurality of supporting rings and a plurality of vertical ribs, wherein the vertical ribs are uniformly distributed on the outer circumferences of the supporting rings; the special spot welding machine comprises a resistance welding transformer, a spot welding control system, fixed spot welding electrodes, mobile spot welding electrodes and a fixture, wherein the mobile spot welding electrodes are driven by a pressure cylinder; the fixture is used for clamping the supporting rings and the vertical ribs; the fixed spot welding electrodes are cylindrical; the outer circumferential sizes of the fixed spot welding electrodes are adaptive to the inner circumferential sizes of the supporting rings; the number of the mobile spot welding electrodes is as same as that of the vertical ribs; corresponding to the vertical ribs one to one, the mobile spot welding electrodes are uniformly distributed on the outer circumference of the keel; under the control of the spot welding control system, the mobile spot welding electrodes are simultaneously propped to the corresponding vertical ribs, and the vertical ribs are simultaneously spot-welded on the supporting rings through discharging to the fixed spot welding electrodes. According to the invention, as each supporting ring and the corresponding vertical rib are spot-welded together and each welding point is uniformly stressed and has smaller deformation during welding, the anti-deformation capacity of the keel is improved, the dust collecting efficiency is increased and the service life of a filter bag is prolonged.

Description

technical field [0001] The invention relates to a bag-type dust collector, in particular to a special spot welding machine for the cage frame of the bag-type dust collector. Background technique [0002] With the rapid development of industry, industries such as electric power, metallurgy, building materials, and chemical industry produce a large amount of dust every year, which has a serious impact on human health and the atmospheric environment, especially in the large amount of dust emitted by coal-fired power plants that contain a large amount of inhalable particulate matter (PM10 and PM2.5), which are extremely harmful to human health. [0003] As a dust removal equipment, the bag filter has the characteristics of high dust removal efficiency, small footprint, reliable operation, low maintenance cost and strong adaptability. It is widely used in thermal power generation, steel, non-ferrous metallurgy, chemical industry, building materials, machinery, Electronics and ma...

AI Technical Summary

Problems solved by technology

Existing above-mentioned dedusting unit, the main defective that exists is: The cage of the dust collector is easily deformed, because The gas pressure of the filter bag in the state of filtering and dust removal is very high. The cage frame of the dust collector is made of stainless steel, which has poor rigidity and strength. In addition, when the support rings are welded to the corresponding vertical bars, the welding points are unevenly stressed and the deformation is relatively different. Large, so that the filter bag and cage bone will be deformed under tens of thousands of impacts, which will cause swirling flow, reduce dust removal efficiency, and accelerate filter bag damage

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