CN212017255U

CN212017255U - Dust collector for SOx/NOx control

Info

Publication number: CN212017255U
Application number: CN202020560668.2U
Authority: CN
Inventors: 颜常柏; 李辉
Original assignee: Shanghai Longmai Machinery Equipment Engineering Co ltd
Current assignee: Shanghai Longmai Machinery Equipment Engineering Co ltd
Priority date: 2020-04-15
Filing date: 2020-04-15
Publication date: 2020-11-27
Anticipated expiration: 2030-04-15

Abstract

The utility model discloses a dust collector for SOx/NOx control belongs to exhaust gas purification technical field. It includes shell and cyclone, cyclone includes intake pipe and outlet duct, cyclone is located the inside of shell, and cyclone's bottom ash discharge mouth and intake pipe all run through the outside that extends to the shell, cyclone's top is provided with the flower orifice plate fixed with the shell inner wall, a plurality of filter bags of fixedly connected with on the flower orifice plate, a plurality of filter bags are annular evenly distributed around cyclone, the upper end of shell is provided with the purification flue gas discharge pipe, the lower extreme is provided with unloads the ash mouth. The utility model discloses set up cyclone in the inside of sack cleaner shell, integrate into a device with the sack cleaner, reduced dust collector's area widely, simultaneously through cyclone's setting for a plurality of filter bags of evenly flowing through of the air current that gets into the sack cleaner.

Description

Dust collector for SOx/NOx control

Technical Field

The utility model relates to a dust collector for SOx/NOx control belongs to exhaust gas purification technical field.

Background

Waste gas purification mainly indicates industrial waste gas that produces to industrial site such as dust particulate matter, the flue gas smoke and dust, peculiar smell gas, poisonous and harmful gas administers the work, it is crucial to industrial waste gas SOx/NOx control dust removal, dust collector generally uses the sack cleaner for SOx/NOx control, because dust content is many in the flue gas, can connect a cyclone earlier in the sack cleaner and carry out preliminary dust removal, reduce the filtration load of follow-up filter bag, current cyclone and sack cleaner volume are all great, and it separately sets up to divide, the centre is through the pipeline intercommunication, thereby make the dust collector structure not compact, and large floor area occupies industrial area.

Disclosure of Invention

The utility model discloses the technical problem that will solve lies in: the utility model provides a dust collector for SOx/NOx control, it has solved current cyclone and sack cleaner volume all great, and all separately sets up, and the centre is through the pipeline intercommunication to make the problem that dust collector structure is not compact, area is big.

The utility model discloses the technical problem that will solve takes following technical scheme to realize:

the utility model provides a dust collector for SOx/NOx control, includes shell and cyclone, cyclone includes intake pipe and outlet duct, cyclone is located the inside of shell, and cyclone's bottom ash discharge mouth and intake pipe all run through the outside that extends to the shell, cyclone's top is provided with the flower hole board fixed with the shell inner wall, a plurality of filter bags of fixedly connected with on the flower hole board, it is a plurality of the filter bag is annular evenly distributed around cyclone, the upper end of shell is provided with the purification flue gas discharge pipe, and the lower extreme is provided with unloads the ash mouth.

As a preferable example, a motor is fixedly connected to the center of the top of the perforated plate, a rotary joint is fixedly connected to the tail end of an output shaft of the motor, an injection tube is fixedly communicated with one end of the rotary joint, a plurality of nozzles for backflushing the filter bag are fixedly communicated with the bottom of the injection tube, a pulse tube is fixedly communicated with the other end of the rotary joint, a pulse valve is fixedly connected to the outer side wall of the housing, and the pulse tube is communicated with the pulse valve.

As a preferable example, a guide plate is fixedly connected to the bottom of the perforated plate and is positioned right above the air outlet pipe.

As a preferred example, the baffle is an inverted cone.

As a preferred example, the top of the shell is provided with an access closing plate.

The utility model has the advantages that:

1. the utility model discloses set up cyclone in the inside of sack cleaner shell, integrate into a device with the sack cleaner, reduced dust collector's area widely, simultaneously through cyclone's setting for a plurality of filter bags of evenly flowing through of the air current that gets into the sack cleaner prevent that the filterable dirty gas of part filter bag is more, filtration load is great, and the filterable dirty gas of another part filter bag is less, the less condition of filtration load.

2. The utility model discloses a setting of rotary joint and jetting pipe, jetting pipe and shower nozzle carry out the deashing to each filter bag in proper order in turn, and relative traditional fixed jetting pipe, this kind of mode can not block the gas outlet of filter bag, reduces the hindrance to the gas flow.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a sectional view taken along line A-A of FIG. 1;

FIG. 3 is a sectional view taken along line B-B of FIG. 1;

fig. 4 is a schematic view of a rotary joint according to the present invention.

In the figure: the dust removing device comprises a dust removing opening 1, a shell 2, a filter bag 3, a perforated plate 4, a blowing pipe 5, an overhauling sealing plate 6, a motor 7, a rotary joint 8, a pulse pipe 9, a pulse valve 10, a guide plate 11, an air inlet pipe 12, an air outlet pipe 13 and a cyclone dust collector 14.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand and understand, the present invention is further explained by combining the following specific drawings.

As shown in fig. 1-4, a dust collector for SOx/NOx control, including shell 2 and cyclone 14, cyclone 14 includes intake pipe 12 and outlet duct 13, cyclone 14 is located the inside of shell 2, and the bottom ash discharge mouth and the intake pipe 12 of cyclone 14 all run through the outside that extends to shell 2, cyclone 14's top is provided with the flower hole board 4 fixed with shell 2 inner wall, a plurality of filter bags 3 of fixedly connected with on the flower hole board 4, a plurality of filter bags 3 are annular evenly distributed around cyclone 14, the upper end of shell 2 is provided with the purification flue gas discharge pipe, the lower extreme is provided with unloads grey mouth 1.

By adopting the scheme, the cyclone dust collector 14 is arranged inside the shell 2 of the bag-type dust collector and is integrated with the bag-type dust collector into a device, so that the floor area of the dust collector is greatly reduced, and meanwhile, through the arrangement of the cyclone dust collector 14, the air flow entering the bag-type dust collector uniformly flows through the filter bags 3, so that the situations that more dust-containing gas filtered by one part of the filter bags 3 is generated, the filtering load is larger, and less dust-containing gas filtered by the other part of the filter bags 3 is generated, and the filtering load is smaller are prevented.

Fixedly connected with motor 7 is located at the top center of perforated plate 4, and the terminal fixedly connected with rotary joint 8 of output shaft of motor 7, the fixed intercommunication of one end of rotary joint 8 has injection pipe 5, and the fixed intercommunication in bottom of injection pipe 5 has a plurality of shower nozzles that are used for recoil filter bag 3, and the fixed intercommunication of the other end of rotary joint 8 has pulse tube 9, and the lateral wall fixedly connected with pulse valve 10 of shell 2, pulse tube 9 and pulse valve 10 intercommunication.

Adopt above-mentioned scheme, motor 7 can adopt step motor, rotates through fixed angle and makes the shower nozzle aim at each filter bag 3, and injection pipe 5 and shower nozzle carry out the deashing to each filter bag 3 in turn in proper order, and relative traditional fixed injection pipe, this kind of mode can not block the gas outlet of filter bag 3, reduces the hindrance to gas flow.

The bottom of the perforated plate 4 is fixedly connected with a guide plate 11, the guide plate 11 is positioned right above the air outlet pipe 13, and the guide plate 11 is in an inverted cone shape.

By adopting the scheme, the airflow discharged from the air outlet pipe 13 is vertically contacted with the guide plate 11, and the airflow uniformly flows through the filter bags 3 in an annular shape under the action of the inclined plane of the guide plate 11, so that the situations that part of the filter bags 3 filter more dust-containing gas and have larger filtering load, and the other part of the filter bags 3 filter less dust-containing gas and have smaller filtering load are prevented.

The top of the shell 1 is provided with an access closing plate 6.

Adopt above-mentioned scheme, overhaul shrouding 6 and seal the setting at 2 tops of shell for change filter bag 3 and other structures.

The working principle is as follows: when the dust-removing device is used, smoke enters the cyclone dust collector 14 through the air inlet pipe 12, dust-containing smoke is enabled to rotate, dust particles and air flow are separated through centrifugal force, the dust particles are directly discharged through the bottom of the cyclone dust collector 14 under the action of gravity, the air flow subjected to primary dust removal enters the shell 2 from the air outlet pipe 13 and is vertically contacted with the guide plate 11, the air flow uniformly flows through the filter bags 3 in an annular mode under the action of the inclined surface of the guide plate 11, fine dust particles are intercepted outside the filter bags 3 and fall to the bottom of the shell 2 under the action of gravity, after being accumulated for a period of time, dust is discharged from the dust discharge port 1, purified air flows to the upper portion of the perforated plate 4 from the filter bags 3 and is finally discharged to the atmosphere through a purified smoke discharge pipe, when the filter bags 3 need to be cleaned, the motor 7 drives the lower half portion of the rotary joint 8 to slowly rotate to drive the injection pipe 5 and the spray head to move, at the moment, the pulse valve 10 is opened, high-pressure air enters the filter bag 3 through the pulse pipe 9, the rotary joint 8, the injection pipe 5 and the spray head in sequence, so that the filter bag 3 is expanded violently, impact vibration is caused, dust adhered to the outer surface of the filter bag 3 and sucked into the filter bag 3 is swept, and then dust removal is performed on the filter bags 3 in turn.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that various changes and modifications may be made without departing from the spirit and scope of the invention, and such changes and modifications fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a dust collector for SOx/NOx control, includes shell (2) and cyclone (14), cyclone (14) include intake pipe (12) and outlet duct (13), its characterized in that: cyclone (14) are located the inside of shell (2), and the bottom ash discharge mouth and intake pipe (12) of cyclone (14) all run through the outside that extends to shell (2), the top of cyclone (14) is provided with flower orifice plate (4) fixed with shell (2) inner wall, a plurality of filter bag (3) of fixedly connected with are gone up in flower orifice plate (4), and is a plurality of filter bag (3) are annular evenly distributed around cyclone (14), the upper end of shell (2) is provided with the purification flue gas discharge pipe, and the lower extreme is provided with unloads grey mouth (1).

2. The dust removing device for desulfurization and denitrification according to claim 1, characterized in that: the improved anti-backlash filter is characterized in that a motor (7) is fixedly connected to the center of the top of the perforated plate (4), a rotary joint (8) is fixedly connected to the tail end of an output shaft of the motor (7), an injection pipe (5) is fixedly communicated with one end of the rotary joint (8), a plurality of spray heads used for backflushing filter bags (3) are fixedly communicated with the bottom of the injection pipe (5), a pulse pipe (9) is fixedly communicated with the other end of the rotary joint (8), a pulse valve (10) is fixedly connected to the outer side wall of the shell (2), and the pulse pipe (9) is communicated with the pulse valve (10).

3. The dust removing device for desulfurization and denitrification according to claim 1, characterized in that: the bottom fixedly connected with guide plate (11) of flower orifice plate (4), guide plate (11) are located outlet duct (13) directly over.

4. The dust removing device for desulfurization and denitrification according to claim 3, characterized in that: the guide plate (11) is in an inverted cone shape.

5. The dust removing device for desulfurization and denitrification according to claim 1, characterized in that: and the top of the shell (2) is provided with an overhaul sealing plate (6).