Telescopic adjustable bag cage of bag type dust collector

Abstract

The invention discloses a telescopic adjustable bag cage of a bag type dust collector. The telescopic adjustable bag cage comprises an outer cage 1, a bag cage top bowl 2, an inner cage 3, a bag cagebottom bowl 4, lock catch hooks 5 and guide rings 6. The outer cage 1 is provided with an outer cage vertical rib 11 and an outer cage reverse supporting ring 12, and the inner cage 3 is provided withan inner cage vertical rib 31 and an inner cage reverse supporting ring 32; the inner diameter of the outer cage 1 is greater than the outer diameter of the inner cage 3; the lock catch hooks 5 are arranged on two uppermost layers of inner cage reverse supporting rings 32 at the top of the inner cage 3, the lock catch hooks 5 are arranged on each layer in the circumferential direction of the inner cage reverse supporting rings 32 at intervals in an included angle mode, and the lock catch hooks 5 are connected with the inner cage reverse supporting rings 32 in a rotating mode. The guide rings6 are arranged on the inner side of the outer cage 1, the guide rings 6 are divided into an upper group and a lower group and are arranged in the circumferential direction of the inner side of the outer cage 1 at intervals in an included angle mode, and each guide ring 6 is matched with one inner cage vertical rib 31 and is in clearance fit with the inner cage vertical rib 31. The telescopic adjustable bag cage has the remarkable advantages of being ingenious in concept, simple in structure, convenient to stretch, adjustable in length, economical, practical, safe, reliable and the like.

Description

technical field [0001] The invention relates to the technical field of bag type dust removal, in particular to a filter bag frame for a bag type dust collector, and in particular to a retractable and adjustable bag cage for a bag type dust collector. Background technique [0002] The bag filter has a very high purification efficiency for particulate matter, even for PM 2.5 Fine particles can also achieve a purification efficiency of more than 99%, and the dust emission concentration at the outlet can easily achieve 10mg / m 3 Below, it can meet the requirements of ultra-low emission and has a wide range of applications. [0003] Bag type dust removal has become the mainstream equipment for the purification and upgrading of industrial flue gas fine particles and ultra-low emissions in my country, and it is also an indispensable and important equipment for the coordinated purification of multi-pollutants in flue gas. [0004] The filter bag frame (commonly known as "bag cage")...

AI Technical Summary

Problems solved by technology

However, there are still the following defects and deficiencies: the telescopic outer rod as the vertical rib of the bag cage is a hollow structure, and the thickness of the hollow tube wall is very limited, which will inevitably affect the strength and rigidity of the bag cage; the telescopic inner rod and the outer rod slide and expand, and the gap is very small. The anti-corrosion paint on the surface of the telescopic rod is easy to rub off and fall off. It is easy to get stuck due to corrosion or the difficulty of synchronously sliding due to the many vertical ribs under the flue gas of the working condition for a long time, which affects the normal sliding and telescopic movement; It is difficult to ensure the straightness of the connection, and it is easy to appear the "bending" phenomenon of the upper and lower bag cages, which can easily cause the rubbing and damage of the bottom and side of the bag and affect the reliable operation of the equipment; although the springs, shafts and other moving parts inside the fixed sleeve can realize bag The cage has a folding function, but after folding it does not reduce the storage and transportation space, but instead increases many moving parts, increasing failure points and failure rates; in addition, the patent does not disclose the method and structure of fixing and limiting between the telescopic inner rod and the outer rod , as far as the current structure is concerned, the length of the bag cage cannot be adjusted conveniently

[0010] The structure of the device can shorten the length of the bag cage and reduce the storage and transportation space, but there are still the following defects and deficiencies: the length of the unit cage is too short (<200mm), and the number of conventional bag cages with a length of several meters is large (dozens are required), and installation It is time-consuming and troublesome to disassemble and disassemble, and it is extremely impractical; the positioning hooks of the supporting ring on the unit cage are fastened with bolts, and must be loosened and tightened one by one during installation and disassembly, which is extremely troublesome due to the large number, and there are many failure points and high failure rate; The upper and lower support rings have unequal diameters, and the inside and outside of the support ring are equipped with lifting lugs for fixing vertical ribs, positioning hooks and lifting lugs for shuttle ropes. The structure and processing are complicated; due to the large number of unit cages and positioning hooks, if there is a The joint is damaged or jammed, and the blowing pipe cannot be taken out without dismantling it, which is extremely inconvenient for actual replacement and maintenance; the vertical ribs of the unit cage are relatively small (only 4), and the vertical rib spacing is too large, and its strength, stiffness and spacing are difficult to meet Engineering requirements; in addition, the bag-cage groups are connected by rope traction, the bearing force is large, and the ropes are easy to break, causing the lower bag-cage group to fall off, damaging the filter bags, and even causing equipment failure

[0011] In summary, although the disclosed patents have telescopic and folding functions, which can achieve a relatively large proportion of length compression, thereby reducing storage and transportation space, they still exist or have complex structures and high manufacturing costs; or have a large number of moving parts and many failure points , high failure rate; or easy to get stuck (blocked), poor practicability and other problems and defects

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