CN217490181U

CN217490181U - Back-blowing device of filter drum dust remover

Info

Publication number: CN217490181U
Application number: CN202221755894.1U
Authority: CN
Inventors: 黄飞; 欧阳联格; 龙天明; 汪仑; 王冠
Original assignee: Xiamen University of Technology
Current assignee: Xiamen University of Technology
Priority date: 2022-07-07
Filing date: 2022-07-07
Publication date: 2022-09-27
Anticipated expiration: 2032-07-07

Abstract

The utility model discloses a blowback device of a filter cartridge dust remover, which belongs to the technical field of dust removers and comprises a plurality of filter cartridges and a cleaning component which are arranged along the vertical direction, wherein the cleaning component is provided with a vertical gas injection pipe along the vertical direction on the central axis of each filter cartridge; the bottom end of the vertical gas ejector pipe is provided with a limiting plate, and the bottom end of the filter cartridge abuts against the limiting plate; the vertical gas ejector pipe is provided with a plurality of rotary ash removal devices along the vertical direction, the side wall of the vertical gas ejector pipe is provided with a gas outlet communicated with the rotary ash removal devices, and the rotary ash removal devices are rotatably connected with the vertical gas ejector pipe so that the rotary ash removal devices can rotate inside the filter cartridges and blow the filter cartridges simultaneously. Adopt rotatory ash removal device to blow from inside, utilize vertical jet-propelled pipe conduction vibrations simultaneously, the deashing avoids high-pressure gas to damage the cartridge filter under the double-deck effect.

Description

Back-blowing device of filter drum dust remover

Technical Field

The utility model relates to a dust remover technical field especially relates to a strain blowback device of a dust remover.

Background

The structure of the filter drum type dust remover is composed of an air inlet pipe, an exhaust pipe, a box body, an ash bucket, an ash cleaning device, a flow guide device, an airflow distribution energy dissipation plate, a filter drum and an electric control device, and is similar to an air box pulse bag dust removal structure. The filter cartridge is arranged in the dust remover, can be vertically arranged on a flower plate of the box body and also can be obliquely arranged on the flower plate, and is more reasonable in vertical arrangement in the aspect of dust removal effect. The lower part of the pattern plate is a filter chamber, and the upper part is an air box pulse chamber. An airflow energy dissipation plate is arranged at the inlet of the dust remover.

After the dust-containing gas enters the dust hopper of the dust remover, a part of coarse particles in the gas flow are settled in the dust hopper under the action of dynamic and inertial force due to the sudden expansion of the gas flow section and the action of the gas flow energy dissipation plate; after dust particles with fine particle size and small density enter the dust filtering chamber, the dust is deposited on the surface of the filtering material through the combined effects of Brownian diffusion, screening and the like, and the purified gas enters the air purifying chamber and is discharged by the fan through the exhaust pipe.

The resistance of the filter drum type dust remover is increased along with the increase of the thickness of the dust layer on the surface of the filter material. When the resistance reaches a certain specified value, ash removal is carried out. At the moment, the PLC program controls the opening and closing of the pulse valve, firstly, a compartment lift valve is closed to cut off the filtering air flow, then, the electromagnetic pulse valve is opened, compressed air rapidly expands in the upper box body within a short time, and the compressed air flows into the filter cartridge to enable the filter cartridge to expand and deform to generate vibration, and under the action of reverse air flow scouring, dust attached to the outer surface of the filter bag is peeled off and falls into the dust hopper. After the ash removal is completed, the electromagnetic pulse valve is closed, the poppet valve is opened, and the chamber is returned to the filtration state. The ash removal of each chamber is carried out in sequence, and one ash removal period is from the ash removal of the first chamber to the ash removal of the next chamber. The fallen dust is discharged through an ash discharge valve in the ash bucket.

But the problems that exist at present are: the surface of the filter element is provided with V-shaped folds, so that the fold points are easy to break when compressed air is used for repeatedly cleaning ash, and the V-shaped folds have small space, which causes dust to be easy to remain or to accumulate at the V-shaped positions to be not cleaned and then block the filter cylinder, thereby increasing the filtration resistance, further reducing the filtration area and ensuring that the filter element is easier to damage. Because the filter core blocks up easily and damaged, so change frequency will be higher relatively, and the maintenance cost is high.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the technical problem to be solved in the utility model is to provide a blowback device of a filter cartridge dust remover, clearance dust that can be fine, but can not cause the damage to the filter core again simultaneously.

To achieve the purpose, the utility model adopts the following technical proposal:

the back blowing device of the filter cartridge dust remover comprises a plurality of filter cartridges and a cleaning assembly, wherein the filter cartridges and the cleaning assembly are arranged along the vertical direction, and a vertical air injection pipe is arranged on the central axis of each filter cartridge along the vertical direction by the cleaning assembly; the bottom end of the vertical gas ejector pipe is provided with a limiting plate, and the bottom end of the filter cartridge abuts against the limiting plate; the vertical gas ejector pipe is provided with a plurality of rotary ash removal devices along the vertical direction, the side wall of the vertical gas ejector pipe is provided with a gas outlet communicated with the rotary ash removal devices, and the rotary ash removal devices are rotatably connected with the vertical gas ejector pipe so that the rotary ash removal devices can rotate inside the filter cartridges and blow the filter cartridges simultaneously.

The utility model discloses preferred scheme lies in, be fixed with on the vertical jet-propelled pipe with rotatory ash removal device rotates the wear-resisting ring cover of connecting, wear-resisting ring cover lower extreme is provided with detachable clamping device, detachable clamping device cup joint in wear-resisting ring cover lateral wall.

The utility model discloses preferred scheme lies in, wear-resisting ring cover lateral surface is wear-resisting smooth surface, rotatory ash removal device cup joints in wear-resisting ring cover outside, rotatory ash removal device with wear-resisting ring cover rotates to be connected, rotatory ash removal device lower extreme with detachable clamping device offsets.

The utility model discloses preferred scheme lies in, wear-resisting ring cover lateral wall is provided with a plurality of slant gas tanks along the circumferencial direction, and rotatory ash removal device root is provided with the drive ring cover, drive ring cover with wear-resisting ring cover rotates to be connected, the drive ring cover is in the outside of slant gas tank is provided with rotatory air cavity.

The utility model has the preferable scheme that the rotary ash removal device is further provided with two air knives, one end of each air knife is communicated with the inside of the rotary air cavity, the air outlet direction of the other end of each air knife is opposite to the air outlet direction of the inclined air groove, the inclined air groove is arranged inside each air knife, and the air outlet of each air knife is flat.

The utility model has the preferable scheme that the outer side wall of the driving ring sleeve is provided with an air knife fixing device, the air knife fixing device is fixed on the upper side and the lower side of the air knife, and the air knife fixing device is detachably connected with the driving ring sleeve.

The preferred technical scheme lies in, the cartridge filter outside is provided with the dust removal box, the clearance subassembly still including be fixed in horizontal pipe, the low pressure gas pitcher on the dust removal box, horizontal pipe connect in the end of giving vent to anger of low pressure gas pitcher, horizontal pipe lateral wall is connected with a plurality of vertical jet-propelled pipe, the low pressure gas pitcher with be provided with the electromagnetic pulse valve between the horizontal pipe.

The utility model has the advantages that the top of the filter cartridge is provided with a pore plate fixedly connected with the dust removal box body, the top end of the filter cartridge is propped against the lower side surface of the pore plate, and the pore plate is provided with a plurality of air passing holes communicated with the center of the filter cartridge; the cartridge filter top be provided with the buckle of orifice plate joint.

Or in another mode, the top of the filter cartridge is provided with a pore plate fixedly connected with the dedusting box body, the top end of the filter cartridge is propped against the lower side surface of the pore plate, and the pore plate is provided with a plurality of air passing holes communicated with the center of the filter cartridge; a butterfly nut is arranged below the limiting plate, a connecting rod penetrating out of the limiting plate is fixedly arranged at the bottom of the vertical gas ejector pipe, and the butterfly nut is in threaded connection with the connecting rod.

The utility model discloses an it is preferred technical scheme, the inside energy dissipation plate that is provided with of dust removal box, dust removal box lateral wall is provided with the inlet port, the energy dissipation plate is located the dead ahead of inlet port, with the inlet port with the cartridge filter is separated the energy dissipation plate below, the inlet port with the cartridge filter intercommunication.

The utility model discloses an optimal technical scheme is, the dust removal bottom half is provided with the ash bucket, dust removal box top is provided with the air outlet.

The utility model has the advantages that:

the technical problem to be solved by the utility model is to provide a blowback device of a filter cartridge dust remover, which comprises a plurality of filter cartridges and a cleaning component which are arranged along the vertical direction, wherein the cleaning component is provided with a vertical gas injection pipe along the vertical direction on the central axis of each filter cartridge; the bottom end of the vertical gas ejector pipe is provided with a limiting plate, and the bottom end of the filter cartridge abuts against the limiting plate; vertical jet-propelled pipe is last to be provided with a plurality of rotatory ash removal device along vertical direction, vertical jet-propelled pipe lateral wall be provided with the venthole of rotatory ash removal device intercommunication, rotatory ash removal device with vertical jet-propelled pipe rotates to be connected, so that rotatory ash removal device is in it blows to it simultaneously to the inside rotation of cartridge filter. Adopt rotatory ash removal device to blow from inside, utilize vertical jet-propelled pipe conduction vibrations simultaneously, the deashing avoids high-pressure gas to damage the cartridge filter under the double-deck effect.

Drawings

FIG. 1 is a schematic view of an overall structure of a blowback apparatus of a filter cartridge dust collector according to an embodiment of the present invention;

FIG. 2 is a schematic view of the internal structure of a blowback device of a filter cartridge dust collector according to an embodiment of the present invention;

FIG. 3 is an enlarged schematic view of a portion of a rotary ash removal device according to an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view of the interior of a blowback apparatus of a filter cartridge dust collector according to an embodiment of the present invention;

FIG. 5 is a schematic longitudinal sectional view of a rotary ash removal device provided in an embodiment of the present invention;

fig. 6 is a schematic view of an internal structure of a blowback device of a filter cartridge dust collector provided in embodiment 2 of the present invention;

in the figure:

1. an electromagnetic pulse valve: 2. an ash hopper; 3. a transverse conduit; 4. a vertical gas ejector pipe; 5. an orifice plate; 6. a filter cartridge; 7. an energy dissipation plate; 8. rotating the ash removal device; 801. an air knife; 802. an air knife fixing device; 803. rotating the air cavity; 804. a wear-resistant ring sleeve; 805. a removable clamping device; 9. an air outlet; 10. a dust removal box body; 11. a low pressure gas tank; 51. air passing holes; 61. a limiting plate; 62. a butterfly nut; 63. a connecting rod; 64. buckling; 807. an air outlet; 808. an oblique gas tank; 101. an air inlet; 102. a separator.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

As shown in fig. 1 to 5, the blowback device of a filter cartridge dust collector provided in this embodiment includes a plurality of filter cartridges 6 arranged in a vertical direction, and a cleaning assembly, where the cleaning assembly is provided with a vertical gas injection pipe 4 in the vertical direction at a central axis of each filter cartridge 6; a limiting plate 61 is arranged at the bottom end of the vertical gas ejector 4, and the bottom end of the filter cartridge 6 is abutted against the limiting plate 61; vertical jet pipe 4 is last to be provided with a plurality of rotatory ash removal device 8 along vertical direction, 4 lateral walls of vertical jet pipe be provided with the venthole 807 of rotatory ash removal device 8 intercommunication, rotatory ash removal device 8 with vertical jet pipe 4 rotates and is connected, so that rotatory ash removal device 8 is in it blows to inside rotation of cartridge filter 6 simultaneously. Vertical jet-propelled pipe 4 and limiting plate 61 play the effect of supporting cartridge filter 6, the vibrations that produce when rotatory ash removal device 8 rotates simultaneously can be conducted to cartridge filter 6 through vertical jet-propelled pipe 4, can shake the separation of falling with the peripheral dust of cartridge filter 6, the air current effect of the rotatory ash removal device 8 of cooperation simultaneously, the V type fold deformation that this rotatory ash removal device 8 spun air current can not be, but can produce certain vibrations, and windy blow off from inside for the dust separates with the filter paper of cartridge filter 6. The rotary ash removal devices 8 can generate large vibration and internal air outlet at the same time, and the ash removal effect is good. The air is blown and cleaned from the inside in a short distance, and the wind power does not need to be too high, so that the V-shaped folds are not easy to deform.

In order to reduce the friction resistance, preferably, a wear-resistant ring sleeve 804 rotatably connected with the rotary ash removal device 8 is fixed on the vertical gas injection pipe 4, a detachable clamping device 805 is arranged at the lower end of the wear-resistant ring sleeve 804, and the detachable clamping device 805 is sleeved on the outer side wall of the wear-resistant ring sleeve 804. The detachable clamping device 805 is in the form of two semicircular clamps and is locked by means of bolts, so that the wear-resistant ring sleeve 804 is clamped on the vertical gas lance 4.

Furthermore, the outer side surface of the wear-resistant ring sleeve 804 is a wear-resistant smooth surface, the rotary ash removal device 8 is sleeved outside the wear-resistant ring sleeve 804, the rotary ash removal device 8 is rotatably connected with the wear-resistant ring sleeve 804, and the lower end of the rotary ash removal device 8 abuts against the detachable clamping device 805. Resistance is less when wear-resisting smooth surface sets up and makes rotatory ash removal device 8 rotatory, has the clearance simultaneously between rotatory ash removal device 8 and the vertical jet-propelled pipe 4, and some gas can be followed clearance and spout when spouting to generate the air wall, frictional resistance between the wear-resisting smooth surface of at utmost and the rotatory ash removal device 8 is reduced, makes rotatory smooth, and when atmospheric pressure was big enough, this point air loss can be ignored, can not influence going on of deashing.

Preferably, in order to drive the rotary ash removal device 8 to rotate, a plurality of inclined air grooves 808 are formed in the outer side wall of the wear-resistant ring sleeve 804 along the annular direction, a driving ring sleeve is arranged at the root of the rotary ash removal device 8, the driving ring sleeve is rotatably connected with the wear-resistant ring sleeve 804, and a rotary air chamber 803 is formed in the outer side of the inclined air grooves 808 in the driving ring sleeve. The rotating air chamber 803 is arranged such that during rotation the gas of the vertical gas lances 4 can always enter the rotating air chamber 803 via the gas outlet holes 807, thereby constantly feeding gas to the gas knife 801.

Furthermore, the rotary ash removal device 8 is further provided with two air knives 801, one end of each air knife 801 is communicated with the inside of the rotary air cavity 803, the air outlet direction of the other end of each air knife 801 is opposite to the air outlet direction of the inclined air groove 808, the inclined air grooves 808 are formed in the air knives 801, and the air outlets of the air knives 801 are flat. The air outlet directions of the two air knives 801 are opposite, so that the air sprayed by the two air knives 801 enables the rotary dust cleaning device 8 to rotate in one direction. The inclined air grooves 808 are gradually reduced along the air outlet direction, so that the pressure is increased during air outlet.

In order to conveniently fix and detach the air knife 801, preferably, an air knife fixing device 802 is arranged on the outer side wall of the driving ring sleeve, the air knife fixing device 802 is fixed on the upper side and the lower side of the air knife 801, and the air knife fixing device 802 is detachably connected with the driving ring sleeve. The air knife 801 is long in length and cannot be well fixed through the middle vent pipe, the air knife fixing devices 802 arranged on the two sides can be conveniently fixed, and meanwhile, replacement is easy.

In order to stabilize the air feed, 6 outsides of cartridge filter are provided with dust removal box 10, the clearance subassembly is still including being fixed in horizontal pipe 3, the low pressure gas pitcher 11 on the dust removal box 10, horizontal pipe 3 connect in the end of giving vent to anger of low pressure gas pitcher 11, 3 lateral walls of horizontal pipe are connected with a plurality of vertical jet-propelled pipe 4, low pressure gas pitcher 11 with be provided with electromagnetic pulse valve 1 between the horizontal pipe 3. The gas of certain pressure of keeping in low pressure gas pitcher 11, through the intermittent type formula of electromagnetic pulse valve 1 control when pressure reaches and open or close to the jet-propelled clearance of intermittent type formula can produce certain vibrations, makes the deashing effect better.

In order to facilitate replacement of the filter cartridge 6, the top of the filter cartridge 6 is provided with an orifice plate 5 fixedly connected with the dedusting box body 10, the top end of the filter cartridge 6 is abutted against the lower side surface of the orifice plate 5, and the orifice plate 5 is provided with a plurality of air passing holes communicated with the center of the filter cartridge 6; the top of the filter cylinder 6 is provided with a buckle 64 which is clamped with the pore plate 5. The use of the snap 64 facilitates the mounting of the filter cartridge 6 below the orifice plate 5.

Preferably, an energy dissipation plate 7 is arranged inside the dust removal box body 10, an air inlet 101 is arranged on the side wall of the dust removal box body 10, the energy dissipation plate 7 is located right in front of the air inlet 101 to separate the air inlet 101 from the filter cartridge 6, and the air inlet 101 is communicated with the filter cartridge 6 below the energy dissipation plate 7. Further, the bottom of the dust removing box body 10 is provided with an ash bucket 2, and the top of the dust removing box body 10 is provided with an air outlet 9. Stop through energy dissipation plate 7 that the effect makes the large granule dust directly drop, makes simultaneously to treat that the gas dispersion gets into cartridge filter 6, avoids gas concentration to purify incompletely. Filtered air is lifted out through the air outlet 9, and cleaned dust drops in the dust hopper 2 and is convenient to clean.

Example two

As shown in fig. 6, this embodiment provides a convenient cartridge filter 6 mounting structure who changes, cartridge filter 6 top be provided with dust removal box 10 fixed connection's orifice plate 5, cartridge filter 6 top with the orifice plate 5 downside offsets, limiting plate 61 below is provided with butterfly nut 62, the bottom of vertical fumarole 4 is fixed with connecting rod 63, connecting rod 63 wears out limiting plate 61, butterfly nut 62 with connecting rod 63 threaded connection, orifice plate 5 be provided with a plurality of with cartridge filter 6 center intercommunication cross gas pocket 51. The filter cartridge 6 is stably fixed by the pressing action of the limit plate 61 and the orifice plate 5, and air is discharged from the center after being filtered through the side wall of the filter cartridge 6 and then discharged to the outside through the air passing hole 51. Limiting plate 61 and orifice plate 5 press from both sides cartridge filter 6 tight fixed for a plurality of cartridge filters 6 all are connected as a whole with orifice plate 5, and vibrations can the mutual conduction, make whole deashing effectual.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.

Claims

1. The utility model provides a blowback device of straining a dust remover which characterized in that:

the cleaning device comprises a plurality of filter cartridges (6) and a cleaning assembly, wherein the filter cartridges (6) and the cleaning assembly are arranged along the vertical direction, and a vertical gas injection pipe (4) is arranged on the central axis of each filter cartridge (6) along the vertical direction; a limiting plate (61) is arranged at the bottom end of the vertical gas ejector pipe (4), and the bottom end of the filter cartridge (6) is abutted against the limiting plate (61);

vertical jet-propelled pipe (4) are gone up and are provided with a plurality of rotatory ash removal device (8) along vertical direction, vertical jet-propelled pipe (4) lateral wall be provided with venthole (807) of rotatory ash removal device (8) intercommunication, rotatory ash removal device (8) with vertical jet-propelled pipe (4) rotate and are connected, so that rotatory ash removal device (8) are in cartridge filter (6) inside rotation blows to it simultaneously.

2. A blowback apparatus of a filter cartridge dust collector in accordance with claim 1, wherein:

the vertical gas ejector (4) is fixedly provided with a wear-resistant ring sleeve (804) which is rotatably connected with the rotary ash removal device (8), the lower end of the wear-resistant ring sleeve (804) is provided with a detachable clamping device (805), and the detachable clamping device (805) is sleeved on the outer side wall of the wear-resistant ring sleeve (804).

3. The blowback apparatus of a filter cartridge dust collector recited in claim 2, wherein:

wear-resisting ring cover (804) lateral surface is wear-resisting smooth surface, rotatory ash removal device (8) are cup jointed in wear-resisting ring cover (804) outside, rotatory ash removal device (8) with wear-resisting ring cover (804) rotate to be connected, rotatory ash removal device (8) lower extreme with detachable clamping device (805) offset.

4. A blowback apparatus of a filter cartridge dust collector in accordance with claim 2 or 3, wherein:

the outer side wall of the wear-resistant ring sleeve (804) is provided with a plurality of inclined air grooves (808) along the annular direction, the root of the rotary ash removal device (8) is provided with a driving ring sleeve, the driving ring sleeve is rotatably connected with the wear-resistant ring sleeve (804), and the driving ring sleeve is provided with a rotary air cavity (803) outside the inclined air grooves (808).

5. The blowback apparatus of a filter cartridge dust collector recited in claim 4, wherein:

the rotary ash removal device (8) is further provided with two air knives (801), one ends of the air knives (801) are communicated with the inside of the rotary air cavity (803), the air outlet direction of the other ends of the air knives (801) is opposite to the air outlet direction of the inclined air groove (808), the inclined air groove (808) is formed in the air knives (801), and the air outlets of the air knives (801) are flat.

6. The blowback apparatus of a filter cartridge dust collector recited in claim 5, wherein:

the outer side wall of the driving ring sleeve is provided with an air knife fixing device (802), the air knife fixing device (802) is fixed on the upper side and the lower side of the air knife (801), and the air knife fixing device (802) is detachably connected with the driving ring sleeve.

7. A blowback apparatus of a filter cartridge dust collector in accordance with claim 1, wherein:

the dust removal box body (10) is arranged outside the filter cartridge (6), the cleaning assembly further comprises a transverse conduit (3) and a low-pressure gas tank (11) which are fixed on the dust removal box body (10), the transverse conduit (3) is connected to the gas outlet end of the low-pressure gas tank (11), the side wall of the transverse conduit (3) is connected with a plurality of vertical gas injection pipes (4), and an electromagnetic pulse valve (1) is arranged between the low-pressure gas tank (11) and the transverse conduit (3).

8. The blowback apparatus of a filter cartridge dust collector recited in claim 7, wherein:

the top of the filter cartridge (6) is provided with a pore plate (5) fixedly connected with the dust removal box body (10), the top end of the filter cartridge (6) is abutted against the lower side surface of the pore plate (5), and the pore plate (5) is provided with a plurality of air passing holes (51) communicated with the center of the filter cartridge (6);

the top of the filter cylinder (6) is provided with a buckle (64) which is clamped with the pore plate (5); or a butterfly nut (62) is arranged below the limiting plate (61), a connecting rod (63) penetrating out of the limiting plate (61) is fixedly arranged at the bottom of the vertical gas ejector pipe (4), and the butterfly nut (62) is in threaded connection with the connecting rod (63).

9. A blowback apparatus of a filter cartridge dust collector in accordance with claim 1, wherein:

an energy dissipation plate (7) is arranged inside the dust removal box body (10), an air inlet hole (101) is formed in the side wall of the dust removal box body (10), the energy dissipation plate (7) is located right in front of the air inlet hole (101) so as to separate the air inlet hole (101) from the filter cartridge (6), and the air inlet hole (101) is communicated with the filter cartridge (6) below the energy dissipation plate (7).

10. A blowback apparatus of a filter cartridge dust collector in accordance with claim 1, wherein:

the dust removal box is characterized in that an ash bucket (2) is arranged at the bottom of the dust removal box body (10), and an air outlet (9) is formed in the top of the dust removal box body (10).