Novel cloth bag support keel and the application at pulse jet sack cleaner thereof
Technical field
The present invention relates to industrial dedusting field, refer more particularly to the critical component dust-removal cloth-bag support keel of the sack cleaner in industrial dedusting field and apply in pulse jet sack cleaner.
Background technology
Dust settling pocket technique is ripe solid dust and powder collection and industrial flue gas cleaning technology, and wherein pulse jet sack cleaner has become China's industrial dust and collects and the main application technology of gas cleaning particularly ultrafine dust control.Sack cleaner utilizes work principle of filter to carry out being separated of solid particle and gas, the assembly that crucial filter element and cloth bag and support keel are formed.Cloth bag generally by functional resin fiber through acupuncture or water jet process process there is specific air permeability, the filtrate that is adapted to different temperatures and chemical environment makes, support keel is welded by carbon steel or stainless steel wire and makes.Utilize blower fan will need flue gas suction deduster to be processed during dust pelletizing system work, dust is stopped by cloth bag, and spine support cloth bag keeps form in negative pressure state and provides space drainage cleaned gas.In pulse jet system, when pressure reduction reaches certain level, system starts deashing program, utilizes high back voltage injecting pulse air flow that the dust filter cake of collection is removed from cloth bag surface the ash bucket fallen into below deduster.
Sack cleaner because its higher efficiency of dust collection and adaptability, particularly to the capacity gauge of ultrafine dust, dominate in industrial dust discharged controls.What require energy-saving and emission-reduction along with China improves constantly, and also constantly proposes higher requirement to dust settling pocket technique.
Current sack cleaner generally uses cross section to be round cloth bag, its supporting support keel be generally with round steel ring for support, by specific interval, many longitudinal steel wires are formed support frame by being equidistantly welded on outside steel ring.Support keel, as the critical component of deduster, directly has influence on filtration and the purification efficiency of deduster.Circular keel traditional are in the market that support ring supports longitudinal reinforcement with circular steel ring or star steel ring, and long-time high-voltage pulse these support rings of jetting can produce concentrated wear and fatigue damage to the poor longitudinal direction of cloth bag strength ratio, directly affect the cloth bag life-span; During winding-up, cloth bag also directly can cause the excessive emissions of moment dust to the shock of support ring; When cloth bag changed by needs, cloth bag produces distortion because of long-time use under high negative pressure or hardens because of dust and moisture, is easy to locally wrap up in be attached on the cross-brace ring of support keel, if keel are longer, dozens of support ring can produce very large resistance, extracts keel extremely difficult.
Summary of the invention
For solving the problems of the technologies described above, the object of the invention is to provide a kind of novel cloth bag support keel and application thereof, can avoid completely contacting the cross-brace of cloth bag, effectively improve efficiency of dust collection, reduce keel to the wearing and tearing of cloth bag and fatigue damage, extend cloth bag service life.
For solving the problems of the technologies described above, the present invention by the following technical solutions:
Novel cloth bag support keel, be applied to sack cleaner, be made up of bifilar outside longitudinal bracing reinforcing bar and multiple spaced internal support, it is characterized in that, the each end of each internal support is fixed on inside bifilar outside longitudinal bracing reinforcing bar by means of spot welds equally spacedly, form radial star-like inner supporting structure, outside longitudinal bracing reinforcing bar is that two circular cross-section reinforcing bars form side by side, or for having the reinforcing bar in 8-shaped cross section.
Wherein, described internal support comprises center fixture and multiple connector, and one end of described connector is welded on the fixture of center, and other end means of spot welds is inside the outside longitudinal bracing reinforcing bar of correspondence, and connector is that sub-thread reinforcing bar is formed.
Wherein, described center fixture is circular section steel ring or punching press steel ring.
Wherein, described connector equidistantly distributes on the fixture of center, adds up to any quantity being greater than 7.
Wherein, described connector is the L-type component be converted into by circular cross-section steel wire, and this component one end is welded on base member, and the outer end means of spot welds of bending is at the middle part of outside longitudinal bracing reinforcing bar.
Wherein, outside longitudinally spacer bar diameter arranged side by side is 0.4-1.0 times of the sub-thread bar diameter of the connector of internal support, or outside longitudinal 8-shaped cross section spacer bar width is 0.8-2.0 times of the sub-thread bar diameter of the connector of internal support, thus L-type connector is welded to after on above-mentioned bifilar outside longitudinal bracing reinforcing bar, the connector of internal support completely or major part be hidden in inside this longitudinal reinforcement.
Wherein, the material of described outside longitudinal bracing reinforcing bar and internal support comprises carbon steel and the stainless steel of various label, carry out after making keel antirust, zinc-plated, plating mould process.
Openly the supporting Wrinkled cloth bag of support keel is in the application of pulse jet sack cleaner simultaneously in the present invention, and it is characterized in that, the keel that sack cleaner supporting Wrinkled cloth bag uses have above-mentioned structure.
Compared with prior art, the present invention has following beneficial effect:
The invention provides a kind of cloth bag support keel of novel concept, substitute traditional round keel, because each end of internal support is fixed on bifilar outside longitudinal bracing reinforcing bar by means of spot welds equally spacedly, only have this bifilar vertical supports to have cloth bag and support contact, avoid completely contacting the cross-brace of cloth bag, effectively improve efficiency of dust collection, reduce keel to the wearing and tearing of cloth bag and fatigue damage, extend cloth bag service life; Keel also may be used for the folding of corresponding size or star-like cloth bag, greatly reduce material and the processing cost of existing market folding cloth bag auxiliary keel, support keel only has longitudinal reinforcement to support cloth bag simultaneously, completely eliminate keel to the inessential contact of cloth bag and wearing and tearing, and to the obvolvent of grid components and friction after reducing cloth bag use, greatly reduce the difficulty of keel dismounting.
accompanying drawing explanation
Fig. 1 is the internal support structural representation of corresponding 8 bifilar longitudinal reinforcement keel of the present invention;
Fig. 2 is the internal support structural representation of corresponding 10 bifilar longitudinal reinforcement keel of the present invention;
Fig. 3 is the internal support structural representation of corresponding 12 bifilar longitudinal reinforcement keel of the present invention;
Fig. 4 is dust-removal cloth-bag keel structure schematic diagram of the present invention;
Fig. 5 is the combination schematic diagrames of dust-removal cloth-bag keel of the present invention with Wrinkled cloth bag.
The explanation of accompanying drawing main element
10 outside bifilar longitudinal bracing reinforcing bars
12 internal supports
121 center fixtures
122 connectors
13 keel top covers
14 Wrinkled cloth bag bags
15 Wrinkled cloth bag mouths.
Detailed description of the invention
By describing technology contents of the present invention, structural feature in detail, realized object and effect, accompanying drawing is coordinated to be explained in detail below in conjunction with embodiment.
Referring to Fig. 1, Fig. 2 and Fig. 3, is three kinds of cloth bag keel internal support structural representations of the present invention.Internal support 12 comprises center fixture 121 and multiple connector 122, one end of each connector 122 is welded on center fixture 121, other end means of spot welds is on the bifilar outside longitudinal bracing reinforcing bar 10 of correspondence, each connector 122 keeps identical spacing, form a kind of star-like irradiation structure, bifilar outside longitudinal bracing reinforcing bar 10 can be by two identical steel wire bifilar steel wires side by side; The sub-thread reinforcing bar of 8-shaped that also can be cross section be, each connector is that sub-thread reinforcing bar is formed.
In the above-described embodiments, center fixture 121 can be circular cross-section steel ring, or punching press steel ring, but shape is not limited to this.
The firmness on bifilar outside longitudinal bracing reinforcing bar 10 is welded on for enhancing connector 122, preferably implement as one, connector 122 designs l-shaped component, and component one end is welded on base member 121, and the other end of bending is welded on inside bifilar outside longitudinal bracing reinforcing bar 10.
Internal support 12 can be cut or punch forming by the steel plate of suitable thickness, forms radial multi-arm star structural support.
Please refer to Fig. 4, is cloth bag supporting keel structure schematic diagram.Novel cloth bag support keel, comprise top cover 13, bifilar outside longitudinal bracing reinforcing bar 10, internal support 12, the each end of internal support 12 is fixed on inside bifilar outside longitudinal bracing reinforcing bar 10 equally spacedly by means of spot welds, forms radial star-like inner supporting structure.In the present embodiment, the inner support ring 121 preferably circular section reinforcing bar of internal support 12, the reinforcing bar in connector 122 circular cross section.
As the preferred embodiment of one, as the reinforcing bar of the bifilar longitudinal bracing reinforcing bar 10 in outside and column width or 8-shaped steel area width, for 0.8-2.0 times of connector sub-thread bar diameter, thus on connector 122 welding edges to bifilar outside longitudinal bracing reinforcing bar 10 after, connector 122 is hidden in the inner side of this bifilar longitudinal reinforcement, keel load after cloth bag, only have this bifilar longitudinal reinforcement to have cloth bag and support contact, avoid and reduce inner support reinforcing bar and contact the inessential of cloth bag.
In the above-described embodiment, the material of outside longitudinal bracing reinforcing bar 10 and internal support 12 can select carbon steel and the stainless steel of various label, after being made into keel, can also carry out the reasons such as antirust, zinc-plated, plating is moulded.
During making, center fixture 121 equidistantly welds multiple connector 122, form internal support 12, the bifilar longitudinal reinforcement of equal number is welded to the end of each connector 122, then keel head is formed at longitudinal reinforcement welded top keel top cover 13, the vertical infolding in longitudinal reinforcement bottom is formed bottom dust-removal cloth-bag keel, obtains complete dust-removal cloth-bag keel.Bifilar longitudinal reinforcement 10 and internal support 12, top cover 13 and bottom can select carbon steel or stainless steel material to make, and are suitable for typical circular cloth bag and the folding cloth bag of same size.
Please refer to Fig. 5, dust-removal cloth-bag keel can make two joints or several sections of on demand, the end that the need that often save connect be equipped be convenient to joint connection in site, there is sufficient intensity and on the operation of cloth bag and the less coupling assembling of air flow method impact, make the keel after connection reach the keel total length of needs, and the keel coupling part gabarit after connecting have whole features of keel body.
Keel design of the present invention can be used for the tradition circular cloth bag composition filter assemblies of corresponding size, also can form assembly with the folding cloth bag of same size.When with common round bag composition filter assemblies, ordinary keel can be avoided completely to support annulus to the fatigue damage of cloth bag.
Fig. 5 is with the combination schematic diagram of the cloth bag support keel of above-mentioned preferred support member making with Wrinkled cloth bag.
In the present invention, internal support 12 and bifilar longitudinal reinforcement only have point cantact, connector 122 and solder joint are hidden in inside longitudinal reinforcement, after keel load cloth bag 14, only have bifilar longitudinal reinforcement 10 pairs of cloth bags 14 to have and support contact, avoid completely because keel cross-brace is to the wearing and tearing of cloth bag and the extra dust emission clashing into generation, and be easy to installation and removal, cost of manufacture and the cost of transportation of keel reduce all greatly.
The above; be only the present invention's preferably detailed description of the invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.