CN216170739U - Ash bin dust collector - Google Patents
Ash bin dust collector Download PDFInfo
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- CN216170739U CN216170739U CN202122746015.0U CN202122746015U CN216170739U CN 216170739 U CN216170739 U CN 216170739U CN 202122746015 U CN202122746015 U CN 202122746015U CN 216170739 U CN216170739 U CN 216170739U
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Abstract
A dust collector for ash bin is composed of a cylindrical body, a fine ash filter unit consisting of several filter bags in said cylindrical body, and a filter bag consisting of a filter bag body and a filter bag keel, and a filter bag back-blowing unit consisting of an air tank outside said cylindrical body and communicated with a pulse back-blowing air distributor tube in said cylindrical body, a blowing nozzle in said filter bag inlet and communicated with said filter bag inlet, a filter bag keel consisting of longitudinal ribs and several ring ribs, cross-shaped supporting ribs welded to the center of each ring rib, a bottom cap at the bottom of said filter bag keel, a top ring of keel and communicated with said filter bag inlet, a blowing nozzle communicated with said pulse back-blowing air distributor tube via tube plate, and a quickly detachable flange at the communicated position of air tank, the using strength of the keel of the filter bag is enhanced, the service life of the filter bag is prolonged, and the filter bag is easy to replace.
Description
Technical Field
The utility model belongs to the technical field of dust removing equipment, and particularly relates to an ash bin dust removing device.
Background
The common ash bin dust remover adopts a unilateral pipe
The cloth gas blowback, because the filter bag of dust remover is longer about (3.5m), can not be timely with the deposition clearance on filter bag surface, along with the device ash discharge system operation cycle increases for the filter bag surface forms the filter cake of the similar thin grey thing that hardens of one deck, makes the gas permeability on filter bag surface reduce, and the resistance increases, directly influences dust collector's result of use.
After a large amount of dust is carried by the conveying gas in the intermittent dry ash discharging process, the conveying gas enters an ash bin. The filter bag (because the weight of the filter bag is light) is blown up from the tube plate of the dust removal device, so that a large amount of fine dust is discharged from the vent of the dust removal device, the filter bag falls down again under the action of gravity after the dust is discharged, and the filter bag root is worn to be broken due to the reciprocating circulation in the dust discharging process, so that the serious environmental pollution problem is caused.
At present, filter bag supporting keels with round cross sections are commonly used in the field of dust removal, and supporting keels matched with the filter bag supporting keels are formed by welding a plurality of longitudinal steel bars on ring bars at equal intervals. In the process of discharging ash in the ash bin dust remover in a long-period intermittent manner, the support strength of the keel is poor, the keel is deformed easily in the continuous ash discharging process of the dust removing device, and the filter bag is damaged due to the friction between the filter bag and the deformed keel in the injection process. Directly discharge the fine ash in the ash discharge process to the outside, causing environmental pollution. And the keels with serious deformation are difficult to extract from the tube plate in the process of maintenance.
The filter bag in the dust removal device at the present stage is mostly made of FMS2108 film-coated material. The filter bag has the advantages of low working temperature, poor air permeability, poor toughness and easy breakage. The filter bag is easy to break when the dust removing device adopts a blowing mode to remove dust in the process of long-period operation. Meanwhile, under the working condition of large air quantity in the continuous dry ash discharge process, the resistance of the filter bag is overlarge during back blowing, so that the cloth bag is easy to vibrate and move up and down, and the damaged keel of the cloth bag is deformed.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model aims to provide an ash bin dust removing device, which comprises the following components: 1. effectively improve the dust removal efficiency of the filter bag. 2. The use strength of the keel of the filter bag is enhanced. 3. The service life of the filter bag is prolonged. 4. Is easy to replace.
In order to achieve the purpose, the utility model adopts the technical scheme that:
the utility model provides an ash bin dust collector, includes barrel 4, fine ash filter equipment and filter bag blowback device, its characterized in that, fine ash filter equipment is including setting up a plurality of filter bags 5 in barrel 4, and filter bag 5 includes the filter bag body and filter bag fossil fragments 21, filter bag blowback device including be located the barrel 4 outer with air storage tank 8, air storage tank 8 intercommunication is located the pulse blowback gas distribution pipe 20 of barrel 4, and pulse blowback gas distribution pipe 20 intercommunication is just to the jetting nozzle 17 of filter bag 5 entry.
The filter bag 5 is vertically arranged in the cylinder 4, and an inlet is arranged at the top.
The filter bag keel 21 is mainly formed by welding longitudinal ribs and a plurality of ring ribs 16 with equal diameters, the centers of the ring ribs 16 are welded with cross support ribs 6, and the distances between adjacent ring ribs 16 are equal.
The longitudinal ribs, the ring ribs 16 and the cross-shaped support ribs 6 are all made of galvanized carbon steel.
The central points of the cross support ribs 6 are all on the same line, and the adjacent cross support ribs 6 are connected through a lacing wire 25.
The bottom end of the filter bag keel 21 is provided with a bottom cap 22, the top end of the filter bag keel 21 is provided with a flaring root 24, the top edge of the flaring root 24 is a keel top ring 14, the keel top ring 14 is connected to the inner side wall of the barrel 4 through the tube plate 13, and the blowing nozzle 17 penetrates through the tube plate 13 and is communicated with the pulse back blowing distribution tube 20.
And locking bolts 18 and fixing nuts 19 are arranged on lug seats on two sides of the blowing nozzle 17, wherein the fixing nuts 19 are arranged on two sides of the lug seats, and the locking bolts 18 adjust and fix the keel top ring 14 through the fixing nuts 19.
The intake pipe of gas holder 8 communicates blowback air supply 23 and has valve and flowmeter in the intercommunication department outside barrel 4, and the blast pipe of gas holder 8 communicates pulse blowback gas distribution pipe 20's one end and has quick detach flange 11 in the intercommunication department in barrel 4, and pulse blowback gas distribution pipe 20's the other end sets up blind flange 12, and pulse blowback gas distribution pipe 20's shaft trompil and jetting nozzle 17 intercommunication.
The air storage tank 8 is connected with a pulse signal controller 7.
The filter element differential pressure gauge 9 and the vent 10 are arranged on the side face of the cylinder 4, the top of the cylinder is connected with the dust remover seal head 3 through the large dust remover seal head flange 2, and the dust remover overhauling device hoisting rod 1 is arranged between the cylinder 4 and the dust remover seal head 3.
Compared with the prior art, the utility model solves the four problems one by one and realizes that:
1. the dust removal efficiency of the filter bag is effectively improved.
2. The use strength of the keel of the filter bag is obviously enhanced.
3. The service life of the filter bag is obviously prolonged.
4. Is easy to replace.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Figure 2 is a structural view of the keel fixture of the present invention.
Figure 3 is a schematic view of the keel structure of the utility model.
Fig. 4 is a schematic diagram of the pulse discharge gas distribution of the present invention.
Detailed Description
The embodiments of the present invention will be described in detail below with reference to the drawings and examples.
The utility model relates to an ash bin dust removing device which is arranged on the top of an ash bin of a continuous ash discharging device, for example, the ash bin dust removing device can be particularly arranged on the top of a fine ash storage bin and an ultrafine ash storage bin with temperature. As shown in figure 1, the device comprises a cylinder 4, a fine ash filtering device and a filter bag back-blowing device. The filter element differential pressure gauge 9 and the vent 10 are arranged on the side surface of the cylinder 4, the top of the cylinder is connected with the dust collector seal head 3 through the large dust collector seal head flange 2, and the dust collector overhauling device is arranged between the cylinder 4 and the dust collector seal head 3 to form a suspender 1, so that the temporary overhauling and hoisting effects can be achieved.
The fine ash filtering device comprises a plurality of filter bags 5 arranged in a cylinder 4, and the filter bags 5 are made of PTFE (polytetrafluoroethylene) film needled felt. Fig. 2 is a partial enlarged view of the blowing nozzle at 15 in fig. 1, and as shown in fig. 2 and 3, in this embodiment, the filter bag 5 is vertically arranged in the cylinder 4, and the inlet is at the top and comprises a filter bag pocket body and a filter bag keel 21. In this embodiment, the bottom end of the filter bag keel 21 is provided with the bottom cap 22, the top end of the filter bag keel is provided with the flaring root 24, the top edge of the flaring root 24 is provided with the keel top ring 14, the keel top ring 14 is connected to the inner side wall of the barrel 4 through the tube plate 13, two poles of the filter element differential pressure gauge 9 are respectively arranged on the upper side and the lower side of the tube plate 13, and the blowing nozzle 17 penetrates through the tube plate 13 to be communicated with the pulse back blowing distribution tube 20.
In this embodiment, the filter bag keel 21 is mainly formed by welding a longitudinal rib and a plurality of ring ribs 16 with equal diameters, the cross support rib 6 is welded at the center of each ring rib 16, the distance between adjacent ring ribs 16 is equal, and the longitudinal rib, the ring ribs 16 and the cross support rib 6 can be made of galvanized carbon steel. The central points of the cross-shaped support ribs 6 are preferably in a line, and adjacent cross-shaped support ribs 6 can be connected through the lacing wires 25.
As shown in figure 4, the filter bag back-blowing device is located above the filter bag 5, and comprises a pulse back-blowing air distribution pipe 20 located in the cylinder 4 and communicated with an air storage tank 8 located outside the cylinder 4, wherein the pulse back-blowing air distribution pipe 20 is communicated with a blowing nozzle 17 facing the inlet of the filter bag 5. The air storage tank 8 can be connected with a pulse signal controller 7 to control pulse back flushing.
In this embodiment, the air inlet pipe of the air storage tank 8 is communicated with the back-blowing air source 23 outside the cylinder 4, and a valve and a flowmeter are arranged at the communication position, the exhaust pipe of the air storage tank 8 is communicated with one end of the pulse back-blowing air distribution pipe 20 in the cylinder 4, and the quick-release flange 11 is arranged at the communication position, so that the quick-release flange is easy to disassemble and repair, and the filter bag 5 and the filter bag keel 21 are replaced. The other end of the pulse back-blowing distribution pipe 20 is provided with a blind flange 12 for blocking, and the pipe body of the pulse back-blowing distribution pipe 20 is provided with a hole
The reducing tee joint comprises
The branch pipe and the 90-degree elbow are communicated with a blowing nozzle 17, and the back blowing nozzle needs to be ensured at the center of the filter bag 5.
In this embodiment, the locking bolts 18 and the fixing nuts 19 are disposed on the ear seats on both sides of the blowing nozzle 17, wherein the fixing nuts 19 are disposed on both sides of the ear seats, the locking bolts 18 adjust and fix the keel top ring 14 through the fixing nuts 19, that is, the adjustable locking bolts 18 fix the keel top ring 14 on the outer edge of the blowing nozzle 17.
Practice proves that the one-side back blowing of the original dust removing and dust removing device is improved into one-by-one pulse back blowing of the filter bag 5, so that the problem of dust accumulation on the surface of the filter bag is effectively solved. The pulse gas entering the dust removing device is re-distributed, the tail end of each back blowing pipe is provided with a reducing blowing nozzle 17, and a back blowing branch pipe is ensured to be positioned at the center position above the filter bag 5 in the installation process (as shown in figure 4).
In the dry continuous ash discharge process, the filter bag 5 is jacked up due to overlarge ash discharge amount, and the filter bag 5 automatically falls down under the action of gravity after the ash discharge is finished, so that the root of the filter bag is worn. The filter bag 5 with light weight is fixed by the locking nuts 18 and the fixing bolts 19 which are arranged on the two sides of the ear seat of the blowing nozzle 17, so that the filter bag 5 cannot move up and down on the tube plate 13 along with the change of air quantity in the ash discharging process.
In the utility model, the filter bag keel 21 is made of galvanized carbon steel, the support keel is formed by welding a plurality of longitudinal steel bars on the ring rib 16 at equal intervals, and the top ring 14 and the bottom cap 22 are designed at the top end and the bottom of the keel. In order to enhance the stability of the keel in the ash discharging process, the cross-shaped support ribs 6 are designed at the centers of the ring ribs 16, the lacing wires 25 are additionally arranged at the centers of the adjacent cross-shaped support ribs 6, and the whole vertical lacing wire penetrates through the cross-shaped support ribs 6 at the center of the keel, so that the dust removing device is more stable in the operation process (as shown in fig. 3).
In the utility model, a quick-release flange 11 is designed at the position where a back-blowing air source enters a dust removal device
The blind flange 12 is designed at the tail end of the gas distribution main pipe, so that the gas distribution pipe line of the dust removal device can be quickly removed to overhaul the filter bag 5 and the filter bag keel 21 when the dust removal device is overhauled (as shown in figure 4).
In the continuous ash discharging process of the ash bin dust collector, the operating condition of the filter bag of the dust collector is judged by observing the pressure difference of two sides of the filter bag 5.
When a filter bag 5 of the dust removal device breaks down and needs to be overhauled, the dust remover end socket 3 can be opened through the lifting device at the top of the dust remover end socket 3. When the filter bag 5 is replaced, the blowing pipe fitting of the dust collector is detached through the quick-release flange 11 for maintenance.
Claims (10)
1. The utility model provides an ash bin dust collector, includes barrel (4), fine ash filter equipment and filter bag blowback device, its characterized in that, fine ash filter equipment is including setting up a plurality of filter bag (5) in barrel (4), and filter bag (5) are including the filter bag body and filter bag fossil fragments (21), the filter bag blowback device including be located barrel (4) outer with gas storage tank (8), gas storage tank (8) intercommunication is located pulse blowback gas distribution pipe (20) in barrel (4), pulse blowback gas distribution pipe (20) intercommunication just to the blowing nozzle (17) of filter bag (5) entry.
2. A dust extraction apparatus according to claim 1, wherein the filter bag (5) is vertically disposed in the canister (4) with the inlet at the top.
3. The dust removal device for the ash bin as claimed in claim 1, wherein the filter bag keel (21) is mainly formed by welding a longitudinal rib and a plurality of ring ribs (16) with equal diameters, a cross-shaped support rib (6) is welded at the center of each ring rib (16), and the distances between the adjacent ring ribs (16) are equal.
4. The ash bin dust removing device according to claim 3, wherein the longitudinal ribs, the ring ribs (16) and the cross-shaped support ribs (6) are all made of galvanized carbon steel.
5. A dust collecting device for a dust bin according to claim 3, wherein the central points of the cross support ribs (6) are all in a line, and the adjacent cross support ribs (6) are connected through tie bars (25).
6. The ash bin dust removing device according to claim 1, wherein a bottom cap (22) is arranged at the bottom end of the filter bag keel (21), a flared root (24) is arranged at the top end of the filter bag keel (21), the top edge of the flared root (24) is a keel top ring (14), the keel top ring (14) is connected to the inner side wall of the barrel (4) through a tube plate (13), and the blowing nozzle (17) penetrates through the tube plate (13) to be communicated with the pulse back blowing distribution tube (20).
7. A dust removal device for an ash bin according to claim 6, wherein the lug seats on both sides of the blowing nozzle (17) are provided with locking bolts (18) and fixing nuts (19), wherein the fixing nuts (19) are arranged on both sides of the lug seats, and the locking bolts (18) adjust and fix the keel top ring (14) through the fixing nuts (19).
8. The ash bin dust removal device according to claim 1, wherein an air inlet pipe of the air storage tank (8) is communicated with a back-blowing air source (23) outside the cylinder body (4), a valve and a flowmeter are arranged at the communication position, an exhaust pipe of the air storage tank (8) is communicated with one end of the pulse back-blowing air distribution pipe (20) in the cylinder body (4), a quick-release flange (11) is arranged at the communication position, a blind flange (12) is arranged at the other end of the pulse back-blowing air distribution pipe (20), and an opening hole of a pipe body of the pulse back-blowing air distribution pipe (20) is communicated with the blowing nozzle (17).
9. The ash bin dedusting device according to the claim 1, characterized in that the air storage tank (8) is connected with a pulse signal controller (7).
10. The ash bin dust removing device according to claim 1, wherein a filter element differential pressure gauge (9) and a vent (10) are arranged on the side surface of the cylinder (4), the top of the cylinder is connected with the dust remover end socket (3) through a large dust remover end socket flange (2), and a lifting rod (1) of the dust remover overhauling device is arranged between the cylinder (4) and the dust remover end socket (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122746015.0U CN216170739U (en) | 2021-11-10 | 2021-11-10 | Ash bin dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122746015.0U CN216170739U (en) | 2021-11-10 | 2021-11-10 | Ash bin dust collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216170739U true CN216170739U (en) | 2022-04-05 |
Family
ID=80908461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122746015.0U Active CN216170739U (en) | 2021-11-10 | 2021-11-10 | Ash bin dust collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216170739U (en) |
-
2021
- 2021-11-10 CN CN202122746015.0U patent/CN216170739U/en active Active
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